Analysis
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max time kernel
121s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
12-11-2023 07:44
Static task
static1
Behavioral task
behavioral1
Sample
b28fed6e73d8203eeebe48b75835f1a6.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
b28fed6e73d8203eeebe48b75835f1a6.exe
Resource
win10v2004-20231025-en
General
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Target
b28fed6e73d8203eeebe48b75835f1a6.exe
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Size
522KB
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MD5
b28fed6e73d8203eeebe48b75835f1a6
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SHA1
45b15d54281ebd0a946fa905dd85c563a221ec90
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SHA256
9797593a4d2f9d01dbb48e57bf0aa5bb970b6ad988f5f8df872ea6f29ece00df
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SHA512
7e970c4e45d430b17f904c0721fb1cc64b9961b0776adc211ddc0e5ca9ae48594ffbd9004a7d5db23e39940e627c8d34cfb85332c2b4e206df901fe0a97f5cef
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SSDEEP
12288:11DKzKH/PPM+WC/cj4KmuMT5FqQTkRmGCnmLS0beG3:vDKQ1q9mLu6mT7
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 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2588-20-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2588-22-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2588-26-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2588-28-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2588-31-0x0000000000400000-0x0000000000424000-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:
b28fed6e73d8203eeebe48b75835f1a6.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b28fed6e73d8203eeebe48b75835f1a6.exe Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b28fed6e73d8203eeebe48b75835f1a6.exe Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b28fed6e73d8203eeebe48b75835f1a6.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:
b28fed6e73d8203eeebe48b75835f1a6.exedescription pid process target process PID 2140 set thread context of 2588 2140 b28fed6e73d8203eeebe48b75835f1a6.exe b28fed6e73d8203eeebe48b75835f1a6.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 10 IoCs
Processes:
b28fed6e73d8203eeebe48b75835f1a6.exeb28fed6e73d8203eeebe48b75835f1a6.exepowershell.exepid process 2140 b28fed6e73d8203eeebe48b75835f1a6.exe 2140 b28fed6e73d8203eeebe48b75835f1a6.exe 2140 b28fed6e73d8203eeebe48b75835f1a6.exe 2140 b28fed6e73d8203eeebe48b75835f1a6.exe 2140 b28fed6e73d8203eeebe48b75835f1a6.exe 2140 b28fed6e73d8203eeebe48b75835f1a6.exe 2140 b28fed6e73d8203eeebe48b75835f1a6.exe 2588 b28fed6e73d8203eeebe48b75835f1a6.exe 2556 powershell.exe 2588 b28fed6e73d8203eeebe48b75835f1a6.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
b28fed6e73d8203eeebe48b75835f1a6.exeb28fed6e73d8203eeebe48b75835f1a6.exepowershell.exedescription pid process Token: SeDebugPrivilege 2140 b28fed6e73d8203eeebe48b75835f1a6.exe Token: SeDebugPrivilege 2588 b28fed6e73d8203eeebe48b75835f1a6.exe Token: SeDebugPrivilege 2556 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
b28fed6e73d8203eeebe48b75835f1a6.exedescription pid process target process PID 2140 wrote to memory of 2556 2140 b28fed6e73d8203eeebe48b75835f1a6.exe powershell.exe PID 2140 wrote to memory of 2556 2140 b28fed6e73d8203eeebe48b75835f1a6.exe powershell.exe PID 2140 wrote to memory of 2556 2140 b28fed6e73d8203eeebe48b75835f1a6.exe powershell.exe PID 2140 wrote to memory of 2556 2140 b28fed6e73d8203eeebe48b75835f1a6.exe powershell.exe PID 2140 wrote to memory of 2684 2140 b28fed6e73d8203eeebe48b75835f1a6.exe schtasks.exe PID 2140 wrote to memory of 2684 2140 b28fed6e73d8203eeebe48b75835f1a6.exe schtasks.exe PID 2140 wrote to memory of 2684 2140 b28fed6e73d8203eeebe48b75835f1a6.exe schtasks.exe PID 2140 wrote to memory of 2684 2140 b28fed6e73d8203eeebe48b75835f1a6.exe schtasks.exe PID 2140 wrote to memory of 2588 2140 b28fed6e73d8203eeebe48b75835f1a6.exe b28fed6e73d8203eeebe48b75835f1a6.exe PID 2140 wrote to memory of 2588 2140 b28fed6e73d8203eeebe48b75835f1a6.exe b28fed6e73d8203eeebe48b75835f1a6.exe PID 2140 wrote to memory of 2588 2140 b28fed6e73d8203eeebe48b75835f1a6.exe b28fed6e73d8203eeebe48b75835f1a6.exe PID 2140 wrote to memory of 2588 2140 b28fed6e73d8203eeebe48b75835f1a6.exe b28fed6e73d8203eeebe48b75835f1a6.exe PID 2140 wrote to memory of 2588 2140 b28fed6e73d8203eeebe48b75835f1a6.exe b28fed6e73d8203eeebe48b75835f1a6.exe PID 2140 wrote to memory of 2588 2140 b28fed6e73d8203eeebe48b75835f1a6.exe b28fed6e73d8203eeebe48b75835f1a6.exe PID 2140 wrote to memory of 2588 2140 b28fed6e73d8203eeebe48b75835f1a6.exe b28fed6e73d8203eeebe48b75835f1a6.exe PID 2140 wrote to memory of 2588 2140 b28fed6e73d8203eeebe48b75835f1a6.exe b28fed6e73d8203eeebe48b75835f1a6.exe PID 2140 wrote to memory of 2588 2140 b28fed6e73d8203eeebe48b75835f1a6.exe b28fed6e73d8203eeebe48b75835f1a6.exe -
outlook_office_path 1 IoCs
Processes:
b28fed6e73d8203eeebe48b75835f1a6.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b28fed6e73d8203eeebe48b75835f1a6.exe -
outlook_win_path 1 IoCs
Processes:
b28fed6e73d8203eeebe48b75835f1a6.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b28fed6e73d8203eeebe48b75835f1a6.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b28fed6e73d8203eeebe48b75835f1a6.exe"C:\Users\Admin\AppData\Local\Temp\b28fed6e73d8203eeebe48b75835f1a6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2140 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zCFxvYBsgbJO.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2556 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zCFxvYBsgbJO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2349.tmp"2⤵
- Creates scheduled task(s)
PID:2684 -
C:\Users\Admin\AppData\Local\Temp\b28fed6e73d8203eeebe48b75835f1a6.exe"C:\Users\Admin\AppData\Local\Temp\b28fed6e73d8203eeebe48b75835f1a6.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2588
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD566006da698178a08340d36994b83b7a3
SHA11a070a4d6b2398f44c40f8436a399c81f557afa6
SHA2565f5d32a861445f9cb155c481f098faef48b0befe02c947a5960009049e22018e
SHA512b958fd46354f6de7c247ad8ff20b8b597193cddcb2cf40907cf9e49ef590d9c727f2ddd1dd549f953bedc7463c5bcd273a2ad3d5edbf887caa5d03db84f9c2c1