icreinstall_vdownloader_setup.exe

Mobonulutu

FlashDelivery (New Media Holdings Ltd)

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_vdownloader_setup.exe, “Mobonulutu Setup ” by FlashDelivery (New Media Holdings) has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the installCore installer. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from www.vaultbytehead.com and multiple other hosts. While running, it connects to the Internet address os.solvefile.com on port 80 using the HTTP protocol.
Publisher:
Sibakasu   (signed by FlashDelivery (New Media Holdings Ltd))

Product:
Mobonulutu

Description:
Mobonulutu Setup

Version:
2.2.1.1

MD5:
8453fd467186a897b9a14f355cb9e4ab

SHA-1:
01fcf211d779ce03157f3c1a50d278f40ed76fcb

SHA-256:
3d2e927ee7639635fecdf1d1e22c884a61947bfd43708ba1ed2d03ddbcbedc9b

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Utilizes the InstallCore download manager that may bundle various adware-type offers.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
11/5/2024 2:20:37 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.NewMedia.NMH.Bundler (M)
16.6.6.12

File size:
1.3 MB (1,355,216 bytes)

Product version:
3.4

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\icreinstall_vdownloader_setup.exe

Digital Signature
Authority:
GlobalSign nv-sa

Valid from:
3/16/2016 1:14:48 AM

Valid to:
6/26/2017 11:47:33 PM

Subject:
CN=FlashDelivery (New Media Holdings Ltd), O=FlashDelivery (New Media Holdings Ltd), L=Tel Aviv, C=IL

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
112107BDB832CA5BF7FCACBF752B12BBB5B7

File PE Metadata
Compilation timestamp:
6/20/1992 7:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:OafiuAUSBnMC2HtTw+sbYX9Bz4MgfHier9CxOq+Fdi2W2EEaQ8sw9G291A7:Oaq1BnMCrBbmL10ieeF+F3EEaQ8r9G8c

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.3469

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
39.5 KB (40,448 bytes)

The file icreinstall_vdownloader_setup.exe has been seen being distributed by the following 32 URLs.

http://www.vaultbytehead.com/c?x=OtCUElS13JFfLVO1rdB8CTvnLZJ0JUnv54ZZa50PJVQ=&c=/IdcObrNsINNCmcn8jq7o58X0S9vQ5HpMM7fUU1K41oq0sSHkGL2by8WAVcRicmte75ND 8PcbeltDDtxgzi5 5q3Xv/UkAcPySl8a5sbPgmQ0yhMcHnCZmLDM5gW7dqh4So0u48dhKEloJ v3pt0 elb45CFVGSI4PU6Wg5nwM=&e=0&downloadAs=VDownloader_Setup.exe&fallback_url=http://.../?p=plus

http://www.vaultbytehead.com/c?x=T7JHh L 8CCTE8RTkV3esNAAX7rUdC8uXHCDiKtJ bA=&c=TlxAsn3I3zovYzy6TMQvqZQSNO5/DlA6sC4PNn1VcmrTJ7SUa58i2FetgVAtBvE4OgR eSD79Ohgz29fCeQ8PZsC2Y2JHzi5O/ERF726PRlCaxWy76PRLWUXud1s1I5d9LKJTrblpdKbosCinbbaxw==&e=0&downloadAs=VDownloader_Setup.exe&fallback_url=http://.../?p=plus

http://www.vaultbytehead.com/c?x=ESkhG/MjiwMTjq118VMOy1FUW1wC2spQlEAgUwBE3V0=&c=JC7SgfSxw1uMD0I9aOmUUIfftrWdoL3dUEL01/bFpDF8qYBx rDio/Z6OHLH5kAD/HYKTIuyynw51 rGxf2hVlMQDG/vzF9fr2qrALUDcx043cC8d0uUo8EThwZVfllkJ8wrW1D2wx2Z3ZLhOQ6kfzALG1Ov hK3MmvAuScDMx4=&e=0&downloadAs=VDownloader_Setup.exe&fallback_url=http://.../?p=plus

Latest 30 of 32 download URLs

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to os.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdnus.solvefile.com  (207.189.109.121:80)

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