Analysis
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max time kernel
117s -
max time network
133s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
11-10-2023 20:14
Static task
static1
Behavioral task
behavioral1
Sample
doc 202309909910101010.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
doc 202309909910101010.exe
Resource
win10v2004-20230915-en
General
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Target
doc 202309909910101010.exe
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Size
497KB
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MD5
4b6ba75e0680e1761dabf95c43e777cd
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SHA1
ac9a769d7355ea3eab0389deb2e11337cb277d48
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SHA256
55ddf189656363ac355a799830fa17a7097a80e850bd9434e33fe2e76aacd9e5
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SHA512
13e2e7edf9047bf059aed416fbce0ea954f4054b699d48f6fa41bb23482ee344b86499a9db4869b1bbd1aa6f53a1f43d048640e3a7ca812b1abf6c6b0d6cca70
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SSDEEP
12288:FE725SZXXjQKQX46Hp+erzNnIyDuiNdYjJAEzq9F/+LQ:BAZN6Hp+erzNnIcKJAv
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.gkas.com.tr - Port:
587 - Username:
[email protected] - Password:
Gkasteknik@2022
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/4800-21-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
doc 202309909910101010.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Control Panel\International\Geo\Nation doc 202309909910101010.exe -
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:
doc 202309909910101010.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 doc 202309909910101010.exe Key opened \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 doc 202309909910101010.exe Key opened \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 doc 202309909910101010.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 63 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
doc 202309909910101010.exedescription pid process target process PID 1284 set thread context of 4800 1284 doc 202309909910101010.exe doc 202309909910101010.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
doc 202309909910101010.exepowershell.exedoc 202309909910101010.exepid process 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 1284 doc 202309909910101010.exe 4292 powershell.exe 4800 doc 202309909910101010.exe 4292 powershell.exe 4800 doc 202309909910101010.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
doc 202309909910101010.exepowershell.exedoc 202309909910101010.exedescription pid process Token: SeDebugPrivilege 1284 doc 202309909910101010.exe Token: SeDebugPrivilege 4292 powershell.exe Token: SeDebugPrivilege 4800 doc 202309909910101010.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
doc 202309909910101010.exedescription pid process target process PID 1284 wrote to memory of 4292 1284 doc 202309909910101010.exe powershell.exe PID 1284 wrote to memory of 4292 1284 doc 202309909910101010.exe powershell.exe PID 1284 wrote to memory of 4292 1284 doc 202309909910101010.exe powershell.exe PID 1284 wrote to memory of 2772 1284 doc 202309909910101010.exe schtasks.exe PID 1284 wrote to memory of 2772 1284 doc 202309909910101010.exe schtasks.exe PID 1284 wrote to memory of 2772 1284 doc 202309909910101010.exe schtasks.exe PID 1284 wrote to memory of 4948 1284 doc 202309909910101010.exe doc 202309909910101010.exe PID 1284 wrote to memory of 4948 1284 doc 202309909910101010.exe doc 202309909910101010.exe PID 1284 wrote to memory of 4948 1284 doc 202309909910101010.exe doc 202309909910101010.exe PID 1284 wrote to memory of 4800 1284 doc 202309909910101010.exe doc 202309909910101010.exe PID 1284 wrote to memory of 4800 1284 doc 202309909910101010.exe doc 202309909910101010.exe PID 1284 wrote to memory of 4800 1284 doc 202309909910101010.exe doc 202309909910101010.exe PID 1284 wrote to memory of 4800 1284 doc 202309909910101010.exe doc 202309909910101010.exe PID 1284 wrote to memory of 4800 1284 doc 202309909910101010.exe doc 202309909910101010.exe PID 1284 wrote to memory of 4800 1284 doc 202309909910101010.exe doc 202309909910101010.exe PID 1284 wrote to memory of 4800 1284 doc 202309909910101010.exe doc 202309909910101010.exe PID 1284 wrote to memory of 4800 1284 doc 202309909910101010.exe doc 202309909910101010.exe -
outlook_office_path 1 IoCs
Processes:
doc 202309909910101010.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 doc 202309909910101010.exe -
outlook_win_path 1 IoCs
Processes:
doc 202309909910101010.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 doc 202309909910101010.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\doc 202309909910101010.exe"C:\Users\Admin\AppData\Local\Temp\doc 202309909910101010.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1284 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OYnoIhjaIinqxa.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4292 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OYnoIhjaIinqxa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE1C0.tmp"2⤵
- Creates scheduled task(s)
PID:2772 -
C:\Users\Admin\AppData\Local\Temp\doc 202309909910101010.exe"C:\Users\Admin\AppData\Local\Temp\doc 202309909910101010.exe"2⤵PID:4948
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C:\Users\Admin\AppData\Local\Temp\doc 202309909910101010.exe"C:\Users\Admin\AppData\Local\Temp\doc 202309909910101010.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4800
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5109eaa9dc9f9f37c3e445c49e94df504
SHA10bb9a6cf9c0a4e3275c8c71ffb2367ec1a5d106d
SHA25626c519934b99e10030a456e520d39b826b23ca1c624ac0d154b69a2fb17a7308
SHA512b647cf10a833591ad25e1e1a420e6b26dd95842f66893aa44364e62dcdf9982fafa45213553cabeb067a0e6163bd832afc39931c2767919f3b648b10e8f04caa