Analysis
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max time kernel
142s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
29-06-2024 12:00
Static task
static1
Behavioral task
behavioral1
Sample
tmpyrtpbblh.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
tmpyrtpbblh.exe
Resource
win10v2004-20240226-en
General
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Target
tmpyrtpbblh.exe
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Size
482KB
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MD5
bfc623937cdfb8cd4090cdea7d6f4425
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SHA1
1bfff971e1f21196ef80b24041ae0d962ce8decd
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SHA256
a163d18a93ea4bee62762da2d1dfc7d0a2644428fc868fabcb4347cbcf17cc62
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SHA512
e3fbf69edcfc9c0051291b13349b9ef6db64a070d07655158eaf71b9beb789bc8f985d2dfc77ca1585b535a3a79ce473d16267735c5864b4d2cd48f29f03300c
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SSDEEP
12288:wXuBtAjdcuDYjaxoerJuBIT4ZASlwoUIKeik/6LOeq:mufAjd0VeroBIcJ+26LJ
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 1 IoCs
Processes:
resource yara_rule behavioral2/memory/3996-9-0x0000000000400000-0x0000000000426000-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:
tmpyrtpbblh.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmpyrtpbblh.exe Key opened \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmpyrtpbblh.exe Key opened \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmpyrtpbblh.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 9 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
tmpyrtpbblh.exedescription pid process target process PID 3012 set thread context of 3996 3012 tmpyrtpbblh.exe tmpyrtpbblh.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
tmpyrtpbblh.exepid process 3996 tmpyrtpbblh.exe 3996 tmpyrtpbblh.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
tmpyrtpbblh.exedescription pid process Token: SeDebugPrivilege 3996 tmpyrtpbblh.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
tmpyrtpbblh.exedescription pid process target process PID 3012 wrote to memory of 3996 3012 tmpyrtpbblh.exe tmpyrtpbblh.exe PID 3012 wrote to memory of 3996 3012 tmpyrtpbblh.exe tmpyrtpbblh.exe PID 3012 wrote to memory of 3996 3012 tmpyrtpbblh.exe tmpyrtpbblh.exe PID 3012 wrote to memory of 3996 3012 tmpyrtpbblh.exe tmpyrtpbblh.exe PID 3012 wrote to memory of 3996 3012 tmpyrtpbblh.exe tmpyrtpbblh.exe PID 3012 wrote to memory of 3996 3012 tmpyrtpbblh.exe tmpyrtpbblh.exe PID 3012 wrote to memory of 3996 3012 tmpyrtpbblh.exe tmpyrtpbblh.exe PID 3012 wrote to memory of 3996 3012 tmpyrtpbblh.exe tmpyrtpbblh.exe -
outlook_office_path 1 IoCs
Processes:
tmpyrtpbblh.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmpyrtpbblh.exe -
outlook_win_path 1 IoCs
Processes:
tmpyrtpbblh.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmpyrtpbblh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\tmpyrtpbblh.exe"C:\Users\Admin\AppData\Local\Temp\tmpyrtpbblh.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\tmpyrtpbblh.exe"C:\Users\Admin\AppData\Local\Temp\tmpyrtpbblh.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3608 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/3012-8-0x00000000050A0000-0x00000000050A8000-memory.dmpFilesize
32KB
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memory/3012-4-0x0000000074A40000-0x00000000751F0000-memory.dmpFilesize
7.7MB
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memory/3012-0-0x0000000074A4E000-0x0000000074A4F000-memory.dmpFilesize
4KB
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memory/3012-3-0x0000000004E70000-0x0000000004F02000-memory.dmpFilesize
584KB
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memory/3012-13-0x0000000074A40000-0x00000000751F0000-memory.dmpFilesize
7.7MB
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memory/3012-5-0x0000000004F60000-0x0000000004F6A000-memory.dmpFilesize
40KB
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memory/3012-6-0x00000000050E0000-0x0000000005134000-memory.dmpFilesize
336KB
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memory/3012-7-0x00000000051D0000-0x000000000526C000-memory.dmpFilesize
624KB
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memory/3012-2-0x0000000005420000-0x00000000059C4000-memory.dmpFilesize
5.6MB
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memory/3012-1-0x00000000003D0000-0x000000000044E000-memory.dmpFilesize
504KB
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memory/3996-10-0x0000000074A40000-0x00000000751F0000-memory.dmpFilesize
7.7MB
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memory/3996-11-0x0000000074A40000-0x00000000751F0000-memory.dmpFilesize
7.7MB
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memory/3996-9-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB
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memory/3996-14-0x00000000068B0000-0x0000000006900000-memory.dmpFilesize
320KB
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memory/3996-15-0x0000000074A40000-0x00000000751F0000-memory.dmpFilesize
7.7MB
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memory/3996-16-0x0000000006AD0000-0x0000000006C92000-memory.dmpFilesize
1.8MB
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memory/3996-17-0x0000000074A40000-0x00000000751F0000-memory.dmpFilesize
7.7MB