Analysis
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max time kernel
82s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
06/03/2023, 09:59
Static task
static1
Behavioral task
behavioral1
Sample
a283d96e9d07b9348f3f4cb1e9fdce7c.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
a283d96e9d07b9348f3f4cb1e9fdce7c.exe
Resource
win10v2004-20230220-en
General
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Target
a283d96e9d07b9348f3f4cb1e9fdce7c.exe
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Size
119KB
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MD5
a283d96e9d07b9348f3f4cb1e9fdce7c
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SHA1
9b4c8a8949140d3e78bdcd879c841287b17d607a
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SHA256
51d49d333a705ef440e6a93a7fd10ca17e0274e557adb79ec4ae1ff5ab880c5b
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SHA512
68455f51a235a40f6a7a683c8c4ca5a05f3167d199aa30102470693b2e25e2ba3034f7c7a51cb14de4df4929c7f7d295b0c0c955a58bb7f856c9559da7167a1d
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SSDEEP
1536:Ck2lYBFnMjeaeONqJ6jL2YUO6CAMmiqmMojvQNRdvd:12cMjDXq8aCAHiqmMpj
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
doDHyw%0 - Email To:
[email protected]
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/4692-163-0x0000000000400000-0x0000000000426000-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-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation a283d96e9d07b9348f3f4cb1e9fdce7c.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.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 42 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4288 set thread context of 4692 4288 a283d96e9d07b9348f3f4cb1e9fdce7c.exe 94 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3532 powershell.exe 3532 powershell.exe 4692 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4288 a283d96e9d07b9348f3f4cb1e9fdce7c.exe Token: SeDebugPrivilege 3532 powershell.exe Token: SeDebugPrivilege 4692 MSBuild.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4288 wrote to memory of 3532 4288 a283d96e9d07b9348f3f4cb1e9fdce7c.exe 86 PID 4288 wrote to memory of 3532 4288 a283d96e9d07b9348f3f4cb1e9fdce7c.exe 86 PID 4288 wrote to memory of 3532 4288 a283d96e9d07b9348f3f4cb1e9fdce7c.exe 86 PID 4288 wrote to memory of 4692 4288 a283d96e9d07b9348f3f4cb1e9fdce7c.exe 94 PID 4288 wrote to memory of 4692 4288 a283d96e9d07b9348f3f4cb1e9fdce7c.exe 94 PID 4288 wrote to memory of 4692 4288 a283d96e9d07b9348f3f4cb1e9fdce7c.exe 94 PID 4288 wrote to memory of 4692 4288 a283d96e9d07b9348f3f4cb1e9fdce7c.exe 94 PID 4288 wrote to memory of 4692 4288 a283d96e9d07b9348f3f4cb1e9fdce7c.exe 94 PID 4288 wrote to memory of 4692 4288 a283d96e9d07b9348f3f4cb1e9fdce7c.exe 94 PID 4288 wrote to memory of 4692 4288 a283d96e9d07b9348f3f4cb1e9fdce7c.exe 94 PID 4288 wrote to memory of 4692 4288 a283d96e9d07b9348f3f4cb1e9fdce7c.exe 94 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a283d96e9d07b9348f3f4cb1e9fdce7c.exe"C:\Users\Admin\AppData\Local\Temp\a283d96e9d07b9348f3f4cb1e9fdce7c.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4288 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3532
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4692
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82