Analysis
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max time kernel
122s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system -
submitted
22-10-2023 17:03
Static task
static1
Behavioral task
behavioral1
Sample
5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe
Resource
win10v2004-20231020-en
General
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Target
5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe
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Size
447KB
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MD5
219d233c4c50db433d953f5f7fdffed5
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SHA1
49079a1e8bbba9e82a4ae8e9aaf098ae5691a458
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SHA256
5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1
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SHA512
7664b48fe58471fdc36b8a610ccbe4cbddaab0407f892d523686f53ded89e8f864e29938e05121966c1e860b5f40e2193be3c87c8b76c8e74333d0c698e69b70
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SSDEEP
12288:mJfD2S+nRXKQV+dHhZdZcZm2TPZHhBak6ceXu0mOFH2m:GbzgRXKm+dHhZdZcZmyEk6Lz
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot6243209595:AAGECSmdSqJiVZcdFoBvotoaKcKT9Lz5Gvw/sendMessage?chat_id=1070926352
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2320-7-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2320-8-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2320-11-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2320-13-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2320-15-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3837739534-3148647840-3445085216-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-3837739534-3148647840-3445085216-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-3837739534-3148647840-3445085216-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 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.
Processes:
flow ioc 2 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exedescription pid process target process PID 2388 set thread context of 2320 2388 5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegAsm.exepid process 2320 RegAsm.exe 2320 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 2320 RegAsm.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exedescription pid process target process PID 2388 wrote to memory of 2320 2388 5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe RegAsm.exe PID 2388 wrote to memory of 2320 2388 5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe RegAsm.exe PID 2388 wrote to memory of 2320 2388 5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe RegAsm.exe PID 2388 wrote to memory of 2320 2388 5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe RegAsm.exe PID 2388 wrote to memory of 2320 2388 5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe RegAsm.exe PID 2388 wrote to memory of 2320 2388 5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe RegAsm.exe PID 2388 wrote to memory of 2320 2388 5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe RegAsm.exe PID 2388 wrote to memory of 2320 2388 5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe RegAsm.exe PID 2388 wrote to memory of 2320 2388 5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe RegAsm.exe PID 2388 wrote to memory of 2320 2388 5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe RegAsm.exe PID 2388 wrote to memory of 2320 2388 5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe RegAsm.exe PID 2388 wrote to memory of 2320 2388 5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe RegAsm.exe -
outlook_office_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3837739534-3148647840-3445085216-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
outlook_win_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3837739534-3148647840-3445085216-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe"C:\Users\Admin\AppData\Local\Temp\5304e329eb59cd3685412e48275824e7a235f28186493d08935c9db576d6c2a1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2388 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2320