Analysis
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max time kernel
121s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
24-10-2023 19:23
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe
Resource
win10v2004-20231020-en
General
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Target
NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe
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Size
432KB
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MD5
b14e49dd5671ae89f3624ad7561731af
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SHA1
b2aa05a7ad52059560755fa04439413afe184ca3
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SHA256
0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294
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SHA512
b803330db90b127e178abf83227ddf8f59e00d4929c686f33f6ab9be1806fb15cbca47ff3f058f20fc3d8b0afe2ddefb0b9cdcc502d22a91d2957449774d38ee
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SSDEEP
12288:yD7gUiVHOazGypq9Q/NGbEP2a6JYrOiqot:nHOazTNYEz6c
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/2300-7-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2300-8-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2300-11-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2300-13-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2300-15-0x0000000000400000-0x0000000000424000-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-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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:
NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exedescription pid process target process PID 2456 set thread context of 2300 2456 NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegAsm.exepid process 2300 RegAsm.exe 2300 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 2300 RegAsm.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exedescription pid process target process PID 2456 wrote to memory of 2300 2456 NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe RegAsm.exe PID 2456 wrote to memory of 2300 2456 NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe RegAsm.exe PID 2456 wrote to memory of 2300 2456 NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe RegAsm.exe PID 2456 wrote to memory of 2300 2456 NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe RegAsm.exe PID 2456 wrote to memory of 2300 2456 NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe RegAsm.exe PID 2456 wrote to memory of 2300 2456 NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe RegAsm.exe PID 2456 wrote to memory of 2300 2456 NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe RegAsm.exe PID 2456 wrote to memory of 2300 2456 NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe RegAsm.exe PID 2456 wrote to memory of 2300 2456 NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe RegAsm.exe PID 2456 wrote to memory of 2300 2456 NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe RegAsm.exe PID 2456 wrote to memory of 2300 2456 NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe RegAsm.exe PID 2456 wrote to memory of 2300 2456 NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe RegAsm.exe -
outlook_office_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\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-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.0477755f4c245b988aa85d1f9375836a72953d6172a7a82f917bbf9e59dd7294exe_JC.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2456 -
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:2300