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r3filegen_cs2.exe

The executable r3filegen_cs2.exe has been detected as malware by 10 anti-virus scanners. This is a setup program which is used to install the application. The file has been seen being downloaded from dl-mail.ymail.com and multiple other hosts.
MD5:
97df7a156883932468110650cb545eb8

SHA-1:
b343b03b83d56e9d58b62c948da7c020b2bc398c

SHA-256:
896bb327cb569a191286c80a93657f7a8a29fc8bb4192d0403f80f1c700bc2ec

Scanner detections:
10 / 68

Status:
Malware

Analysis date:
5/9/2025 5:58:18 AM UTC  (today)

Scan engine
Detection
Engine version

Baidu Antivirus
Trojan.BAT.Zapchast
4.0.3.14117

IKARUS anti.virus
Trojan.BAT.Zapchast
t3scan.1.8.3.0

Kaspersky
Trojan.BAT.Zapchast
14.0.0.2984

McAfee
RDN/Generic.dx!dfd
5600.6954

NANO AntiVirus
Trojan.Win32.Zapchast.desvex
0.28.6.62995

Norman
Suspicious_Gen4.GRURR
11.20141107

nProtect
Trojan/W32.Agent.576056
14.11.04.01

Trend Micro House Call
TROJ_GEN.R0CBC0PIC14
7.2.311

Trend Micro
TROJ_GEN.R0CBC0PIC14
10.465.07

VIPRE Antivirus
Win32.Malware!Drop
34520

File size:
562.6 KB (576,056 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\downloads\r3filegen_cs2.exe

File PE Metadata
Compilation timestamp:
5/29/2011 12:04:29 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:IkWAehJuqT6JjxMGW/IyQ/Q/w2lycBGgw48pnp9lSQfXv20:IkWAAuqeJt7W/ITY/woycBGsqrlrXvP

Entry address:
0xB480

Entry point:
E8, E3, FE, FF, FF, 33, C0, 50, 50, 50, 50, E8, D5, 2D, 00, 00, C3, 56, 57, 8B, 7C, 24, 0C, 8B, F1, 8B, CF, 89, 3E, E8, F3, A0, FF, FF, 89, 46, 08, 89, 56, 0C, 8B, 87, 1C, 0C, 00, 00, 89, 46, 10, 5F, 8B, C6, 5E, C2, 04, 00, 8B, C1, 8B, 08, 8B, 50, 10, 3B, 91, 1C, 0C, 00, 00, 75, 0D, 6A, 00, FF, 70, 0C, FF, 70, 08, E8, 1C, A6, FF, FF, C3, 55, 8B, EC, 83, EC, 1C, 56, 33, F6, 56, 56, 56, 56, 8D, 45, E4, 50, FF, 15, 48, 32, 41, 00, 85, C0, 74, 21, 56, 56, 56, 8D, 45, E4, 50, FF, 15, 4C, 32, 41, 00, 8D, 45, E4...
 
[+]

Entropy:
7.8875  (probably packed)

Code size:
70.5 KB (72,192 bytes)

The file r3filegen_cs2.exe has been seen being distributed by the following 4 URLs.

https://dl-mail.ymail.com/ws/download/mailboxes/@.id==VjJ-WFCeXp3KRyfYWWhi_RMQQWq5tP0q2_nk3Vt26NklJ5OM24NxGh7f78Xyf379-f_qpXSQPIt7834jXjyRXCwNNg/messages/@.id==ACfhwgoAAYY2V1U-0AaD-NaQ8zQ/content/parts/@.id==3/raw?appid=YahooMailNeo&token=zitEzqOML3j84e6ealFTT5U7-km5qEQF52lp7AcCuBY30m-RF-YvCNIlpbAOTLmnLktCQWcGQcOJJw3XBBO9Lw&error=https://us-mg6.mail.yahoo.com/.../iframemsg?id=eb9fde9d-58fc-d8e5-8b5e-8b8df52ab064&ymreqid=8fa7f125-ae58-0071-014e-bf002e010000

https://sss.gov.ph/.../DownloadContent?fileName=R3FileGen_CS2.exe

http://www.sss.gov.ph/sss/.../R3FileGen_CS2.exe

https://www.sss.gov.ph/.../DownloadContent?fileName=R3FileGen_CS2.exe

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