Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
02/07/2024, 01:13
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe
Resource
win7-20240221-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe
Resource
win10v2004-20240508-en
9 signatures
150 seconds
General
- Target a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe
- Size 1.9MB
- Sample240702-blb4pavcjq
- SHA256 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d
- MD5 2dcf1e9b4ca5afa19d7473f108aea256
- SHA1 d2f554d2699fcddf1c2d65cc05739916aa0dae62
- SHA512 be82afc240c397e66742a019af1fe6464100eda77bb5b4bfb6e92856ae51b866554e51b500786902d79737ed1a4e2e02b845b034ec9d2abfd3ff6d9526587cde
- SSDEEP 12288:7EC0huBtyjOQyaZyk3x2PulNQ5EcxhyBIpNOlV3d:AC4u/2x72PV5LxhclV3d
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
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snakekeylogger
Credentials
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Protocol
smtp
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Host
valleycountysar.org
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Port
26
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Username
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Password
fY,FLoadtsiF
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/1392-4-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation regasm.exe - Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 10 checkip.dyndns.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3988 set thread context of 1392 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 82 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1392 regasm.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1392 regasm.exe - Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 3988 wrote to memory of 208 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 81 PID 3988 wrote to memory of 208 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 81 PID 3988 wrote to memory of 208 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 81 PID 3988 wrote to memory of 1392 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 82 PID 3988 wrote to memory of 1392 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 82 PID 3988 wrote to memory of 1392 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 82 PID 3988 wrote to memory of 1392 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 82 PID 3988 wrote to memory of 1392 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 82 PID 3988 wrote to memory of 1392 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 82 PID 3988 wrote to memory of 1392 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 82 PID 3988 wrote to memory of 1392 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 82 PID 3988 wrote to memory of 2492 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 83 PID 3988 wrote to memory of 2492 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 83 PID 3988 wrote to memory of 2492 3988 a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe 83 PID 1392 wrote to memory of 3928 1392 regasm.exe 91 PID 1392 wrote to memory of 3928 1392 regasm.exe 91 PID 1392 wrote to memory of 3928 1392 regasm.exe 91 PID 3928 wrote to memory of 3196 3928 cmd.exe 93 PID 3928 wrote to memory of 3196 3928 cmd.exe 93 PID 3928 wrote to memory of 3196 3928 cmd.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe"C:\Users\Admin\AppData\Local\Temp\a1aa961c8b1eb8e3627dceee8081d62544d84987b623b84addd7b92a35089c7d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3988 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"2⤵PID:208
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"2⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1392 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:3928 -
C:\Windows\SysWOW64\choice.exechoice /C Y /N /D Y /T 34⤵PID:3196
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"2⤵PID:2492
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