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flash_update.exe

Internet

GERYON ADS SL.

The application flash_update.exe, “Internet Setup ” by GERYON ADS SL has been detected as a potentially unwanted program by 6 anti-malware scanners. The program is a setup application that uses the Inno Setup installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from www.binariesmegastock.com and multiple other hosts.
Publisher:
GERYON ADS SL.  (signed and verified)

Product:
Internet

Description:
Internet Setup

MD5:
c8f99b624b66794a1a9765687721dd68

SHA-1:
47f73fb491e082a838b9441b8fb278157ba33e9f

SHA-256:
39c333452bdf4dfde572ec165f871dd9655130e0415e2a5110f95920e7e346cf

Scanner detections:
6 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Analysis date:
11/25/2024 3:42:47 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2017.0.2847

Dr.Web
Trojan.InstallCore.1027
9.0.1.031

ESET NOD32
Win32/InstallCore.ABK potentially unwanted (variant)
10.12131

Reason Heuristics
PUP.installCore.GERYONADS.Installer (M)
16.1.31.17

Sophos
Install Core Click run software (PUA)
4.98

VIPRE Antivirus
InstallCore
43084

File size:
936.8 KB (959,248 bytes)

Product version:
1.5

Copyright:
Application

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\flash_update.exe

Digital Signature
Signed by:
GERYON ADS SL.

Authority:
GlobalSign nv-sa

Valid from:
12/17/2015 10:21:05 PM

Valid to:
6/23/2016 8:17:17 PM

Subject:
CN=GERYON ADS SL., O=GERYON ADS SL., L=Barcelona, S=Barcelona, C=ES

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

Serial number:
112181D069E2BE8A14952BA745AD05847F6F

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:gwuWn8Fr8VqQkjLw/DDOyADAs0tTaMywrFCWzkobiRS:gZW8yV7kXm1cgdaL2EW4oq

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, 53, C9, FF, FF, E8, 9A, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.9347

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

Code size:
37 KB (37,888 bytes)

The file flash_update.exe has been seen being distributed by the following 3 URLs.

http://www.binariesmegastock.com/c?x=5fzGmUAYU7zvDzyP7A6vbmui1OHOuZFYZLcaDhkNaSY=&c=V3lMSNnsXIFTH06GGgieFZerqApUeqqGwhvlvXVJlfW25mqcMaGKdwbfhqh/ VzSIEBD5gdaF6kEtPrxTCCIDNb0E4gUywPS uJosZONGuUD25ae8SzIsiAjtXxQiEk3&downloadAs=Flash_Update.exe&fallback_url=http://download.macromedia.com/get/flashplayer/current/licensing/.../install_flash_player_18_plugin.exe

http://www.tourlaboratorytag.com/c?x=OD Gus/Q/S9vNe1ZaH1S9a01prb7BDaHxxDG6Jl/3XE=&c=B94rWCcGqAFuQZ0pSTGrlfZHvKyXnVHFTR 7R2pc7OpyKLtF/9WUpxIC3V7 F9yoSzy0Y1uaLWwUo1 pjWfDTFh2FuhgciUiLT z FUUtwF17uyyX/6OS4wl xMPmDHR&downloadAs=Flash_Update.exe&fallback_url=http://download.macromedia.com/get/flashplayer/current/licensing/.../install_flash_player_18_plugin.exe

http://www.appsgrabrepository.com/c?x=47FYmovDiDKcUdkUI1fCeiyWuuNJeB5kF8Xc32dyWgE=&c=l53wvF28RFlosAQZBWABJIjNxcnnnsprQ3/7XDRxOCrM1jvCfyN1wgU4ZZ43S9J8GDNm3 QdqpzJoTJUhhsA3W8Ccj1ICwcPF4V VBSuhrjmqP idDbq3oY7nEuNx0tw&downloadAs=Flash_Update.exe&fallback_url=http://download.macromedia.com/get/flashplayer/current/licensing/.../install_flash_player_18_plugin.exe

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