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flv_installer.exe

Square Network Tech Co.,LTD.

The application flv_installer.exe by Square Network Tech Co.,LTD 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 Amonetize Downloader installer. The file has been seen being downloaded from www.istplayer.com.
Publisher:
Square Network Tech Co.,LTD.  (signed and verified)

MD5:
835a3a494d0607cd82136936dc56f298

SHA-1:
02953f31a5dfd26afd52140495d30563840e3ae3

SHA-256:
3f5a8bdab30721ff93b6600eebe32470def93b9c24420f2a891ee911306519e8

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
11/30/2024 3:33:47 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.8.9.4

File size:
942.7 KB (965,280 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Amonetize Downloader

Common path:
C:\users\{user}\downloads\flv_installer.exe

Digital Signature
Signed by:
Square Network Tech Co.,LTD.

Authority:
VeriSign, Inc.

Valid from:
12/30/2013 4:00:00 PM

Valid to:
12/31/2014 3:59:59 PM

Subject:
CN="Square Network Tech Co.,LTD.", OU=Digital ID Class 3 - Microsoft Software Validation v2, O="Square Network Tech Co.,LTD.", L=Zhongshan, S=Guangdong, C=CN

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
08F1CEE1EA15CE4F4CA29FDEBE3DACA3

File PE Metadata
Compilation timestamp:
5/9/2014 5:18:38 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
24576:cRyDVrm5WWdgd+jcOOA/4mkHXfYxMCJSuOIKe/KsE:cRyDV1jd+Dt/4rPfKjK2KsE

Entry address:
0x5F8BC

Entry point:
E8, 24, C9, 00, 00, E9, 79, FE, FF, FF, 8B, FF, 55, 8B, EC, 51, 83, 65, FC, 00, 53, 8B, 5D, 10, 85, DB, 75, 07, 33, C0, E9, 9A, 00, 00, 00, 57, 83, FB, 04, 72, 75, 8D, 7B, FC, 85, FF, 76, 6E, 8B, 4D, 0C, 8B, 45, 08, 8A, 10, 83, C0, 04, 83, C1, 04, 84, D2, 74, 52, 3A, 51, FC, 75, 4D, 8A, 50, FD, 84, D2, 74, 3C, 3A, 51, FD, 75, 37, 8A, 50, FE, 84, D2, 74, 26, 3A, 51, FE, 75, 21, 8A, 50, FF, 84, D2, 74, 10, 3A, 51, FF, 75, 0B, 83, 45, FC, 04, 39, 7D, FC, 72, C2, EB, 3F, 0F, B6, 40, FF, 0F, B6, 49, FF, EB, 46...
 
[+]

Entropy:
6.6429

Code size:
484 KB (495,616 bytes)

The file flv_installer.exe has been seen being distributed by the following URL.

http://www.istplayer.com/entry/.../exefile?ref=sclicksor2&site_id=1-9344757&sub_id=1-1-179671-135247-19976964-196983-14010583392215-1401058456-50546083840440-20488867

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