Analysis
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max time kernel
120s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
30-06-2024 15:37
Static task
static1
Behavioral task
behavioral1
Sample
vsl particulars packing list.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
vsl particulars packing list.exe
Resource
win10v2004-20240226-en
General
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Target
vsl particulars packing list.exe
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Size
1.5MB
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MD5
ec3fe16c54946213c717a27606f70243
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SHA1
d11efe4e0f949ff6b14929cd30ae146c1b4a11c9
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SHA256
f3c462280fd1964d68c76ff6889bd3c766fa7140c07962dda32c0cb488188695
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SHA512
66125f727ec27d3e1da5c87953e46e928b000d564c784b919ba0b558efe4aa080a2f310e729f03b113ab02bc5aea390bb60a6829d3d586fab414b430d40eab04
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SSDEEP
12288:1hNsCbYGek5/68cYvmjZxVcsK3SCv6vcuqVuMDCqg0h+:14CF/6V1xNK3SnUrRh+
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
valleycountysar.org - Port:
26 - Username:
[email protected] - Password:
fY,FLoadtsiF
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/2296-7-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2296-13-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2296-11-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2296-9-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2296-6-0x0000000000400000-0x0000000000426000-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-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 regasm.exe Key opened \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 regasm.exe Key opened \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\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:
vsl particulars packing list.exedescription pid process target process PID 1688 set thread context of 2296 1688 vsl particulars packing list.exe regasm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
regasm.exepid process 2296 regasm.exe 2296 regasm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
regasm.exedescription pid process Token: SeDebugPrivilege 2296 regasm.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
vsl particulars packing list.exedescription pid process target process PID 1688 wrote to memory of 2296 1688 vsl particulars packing list.exe regasm.exe PID 1688 wrote to memory of 2296 1688 vsl particulars packing list.exe regasm.exe PID 1688 wrote to memory of 2296 1688 vsl particulars packing list.exe regasm.exe PID 1688 wrote to memory of 2296 1688 vsl particulars packing list.exe regasm.exe PID 1688 wrote to memory of 2296 1688 vsl particulars packing list.exe regasm.exe PID 1688 wrote to memory of 2296 1688 vsl particulars packing list.exe regasm.exe PID 1688 wrote to memory of 2296 1688 vsl particulars packing list.exe regasm.exe PID 1688 wrote to memory of 2296 1688 vsl particulars packing list.exe regasm.exe PID 1688 wrote to memory of 2296 1688 vsl particulars packing list.exe regasm.exe PID 1688 wrote to memory of 2296 1688 vsl particulars packing list.exe regasm.exe PID 1688 wrote to memory of 2296 1688 vsl particulars packing list.exe regasm.exe PID 1688 wrote to memory of 2296 1688 vsl particulars packing list.exe regasm.exe PID 1688 wrote to memory of 2712 1688 vsl particulars packing list.exe WerFault.exe PID 1688 wrote to memory of 2712 1688 vsl particulars packing list.exe WerFault.exe PID 1688 wrote to memory of 2712 1688 vsl particulars packing list.exe WerFault.exe -
outlook_office_path 1 IoCs
Processes:
regasm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\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-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 regasm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\vsl particulars packing list.exe"C:\Users\Admin\AppData\Local\Temp\vsl particulars packing list.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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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⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 1688 -s 6242⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1688-0-0x000007FEF6023000-0x000007FEF6024000-memory.dmpFilesize
4KB
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memory/1688-1-0x00000000002C0000-0x00000000002C8000-memory.dmpFilesize
32KB
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memory/1688-2-0x0000000001EF0000-0x0000000001F6A000-memory.dmpFilesize
488KB
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memory/1688-3-0x000007FEF6020000-0x000007FEF6A0C000-memory.dmpFilesize
9.9MB
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memory/1688-15-0x000007FEF6020000-0x000007FEF6A0C000-memory.dmpFilesize
9.9MB
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memory/1688-14-0x000007FEF6023000-0x000007FEF6024000-memory.dmpFilesize
4KB
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memory/2296-13-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/2296-11-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/2296-9-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/2296-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/2296-6-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/2296-5-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/2296-7-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/2296-4-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB