Analysis
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max time kernel
130s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
02-10-2023 15:27
Static task
static1
Behavioral task
behavioral1
Sample
30082023.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
30082023.exe
Resource
win10v2004-20230915-en
General
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Target
30082023.exe
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Size
466KB
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MD5
4d5ce0ea9efcb7e3fdb61c32d1626748
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SHA1
5813b82a84f3c3d8f4b5a7af227026fc2c8c7f66
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SHA256
dc5e498d5465b93688dd366c5661cb624456b0982928c3778845b5d640ebf625
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SHA512
9739f69426a5c58aca0c4349a65417994376fd436c5cd55f2feaf30f8fe15ea80e6271fcd80f0c70f77b1f171324a11d730248429f55b80f842b8a71f2fe7be1
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SSDEEP
12288:zMYG3l6sMIBJCx6icVkGYJ/Zi/PBs6lD+S:zjGDFkiPB9lD+S
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/3308-19-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger -
Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe -
Processes:
svchost.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths svchost.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\svchost.exe = "0" svchost.exe -
Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs
Processes:
30082023.exesvchost.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions 30082023.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions svchost.exe -
Looks for VMWare Tools registry key 2 TTPs 2 IoCs
Processes:
30082023.exesvchost.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools 30082023.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools svchost.exe -
Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
30082023.exesvchost.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 30082023.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 30082023.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
30082023.exesvchost.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Control Panel\International\Geo\Nation 30082023.exe Key value queried \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Control Panel\International\Geo\Nation svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
svchost.exepid process 3888 svchost.exe -
Uses the VBS compiler for execution 1 TTPs
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Processes:
svchost.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions svchost.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\svchost.exe = "0" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths svchost.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
30082023.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\"" 30082023.exe -
Processes:
svchost.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA svchost.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.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 22 checkip.dyndns.org -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
30082023.exesvchost.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 30082023.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 30082023.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum svchost.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 svchost.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
svchost.exedescription pid process target process PID 3888 set thread context of 3308 3888 svchost.exe vbc.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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Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3452 timeout.exe -
Suspicious behavior: EnumeratesProcesses 27 IoCs
Processes:
30082023.exevbc.exepowershell.exepid process 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 2864 30082023.exe 3308 vbc.exe 4276 powershell.exe 4276 powershell.exe 3308 vbc.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
30082023.exesvchost.exevbc.exepowershell.exedescription pid process Token: SeDebugPrivilege 2864 30082023.exe Token: SeDebugPrivilege 3888 svchost.exe Token: SeDebugPrivilege 3308 vbc.exe Token: SeDebugPrivilege 4276 powershell.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
30082023.execmd.execmd.exesvchost.exedescription pid process target process PID 2864 wrote to memory of 5064 2864 30082023.exe cmd.exe PID 2864 wrote to memory of 5064 2864 30082023.exe cmd.exe PID 2864 wrote to memory of 5064 2864 30082023.exe cmd.exe PID 2864 wrote to memory of 4124 2864 30082023.exe cmd.exe PID 2864 wrote to memory of 4124 2864 30082023.exe cmd.exe PID 2864 wrote to memory of 4124 2864 30082023.exe cmd.exe PID 5064 wrote to memory of 1300 5064 cmd.exe schtasks.exe PID 5064 wrote to memory of 1300 5064 cmd.exe schtasks.exe PID 5064 wrote to memory of 1300 5064 cmd.exe schtasks.exe PID 4124 wrote to memory of 3452 4124 cmd.exe timeout.exe PID 4124 wrote to memory of 3452 4124 cmd.exe timeout.exe PID 4124 wrote to memory of 3452 4124 cmd.exe timeout.exe PID 4124 wrote to memory of 3888 4124 cmd.exe svchost.exe PID 4124 wrote to memory of 3888 4124 cmd.exe svchost.exe PID 4124 wrote to memory of 3888 4124 cmd.exe svchost.exe PID 3888 wrote to memory of 4276 3888 svchost.exe powershell.exe PID 3888 wrote to memory of 4276 3888 svchost.exe powershell.exe PID 3888 wrote to memory of 4276 3888 svchost.exe powershell.exe PID 3888 wrote to memory of 3308 3888 svchost.exe vbc.exe PID 3888 wrote to memory of 3308 3888 svchost.exe vbc.exe PID 3888 wrote to memory of 3308 3888 svchost.exe vbc.exe PID 3888 wrote to memory of 3308 3888 svchost.exe vbc.exe PID 3888 wrote to memory of 3308 3888 svchost.exe vbc.exe PID 3888 wrote to memory of 3308 3888 svchost.exe vbc.exe PID 3888 wrote to memory of 3308 3888 svchost.exe vbc.exe PID 3888 wrote to memory of 3308 3888 svchost.exe vbc.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe -
outlook_office_path 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe -
outlook_win_path 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\30082023.exe"C:\Users\Admin\AppData\Local\Temp\30082023.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2864 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
PID:5064 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'3⤵
- Creates scheduled task(s)
PID:1300 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpEDFA.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
PID:4124 -
C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
PID:3452 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"3⤵
- UAC bypass
- Windows security bypass
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Windows security modification
- Checks whether UAC is enabled
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:3888 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\svchost.exe" -Force4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4276 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"4⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3308
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
3Disable or Modify Tools
3Modify Registry
5Scripting
1Virtualization/Sandbox Evasion
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
151B
MD5151ee8e38ccf84cc60e4292c92cf19f8
SHA1c810defc115a2f2db7e53203472f15d4dee1ad36
SHA256e58c5f7d86d2847b13519232e55dc4587e51e965b60ad72aa321c0ef4add7cc1
SHA512f7ab7877aea20435a8d4e800107d8b322a7994f0d4c5d8b1ec3aa57dfd60648ea22eca6f8f2dd49c3114de34b6e8d74de7ecfab364c385e0234d6a8c448b618e
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Filesize
466KB
MD54d5ce0ea9efcb7e3fdb61c32d1626748
SHA15813b82a84f3c3d8f4b5a7af227026fc2c8c7f66
SHA256dc5e498d5465b93688dd366c5661cb624456b0982928c3778845b5d640ebf625
SHA5129739f69426a5c58aca0c4349a65417994376fd436c5cd55f2feaf30f8fe15ea80e6271fcd80f0c70f77b1f171324a11d730248429f55b80f842b8a71f2fe7be1
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Filesize
466KB
MD54d5ce0ea9efcb7e3fdb61c32d1626748
SHA15813b82a84f3c3d8f4b5a7af227026fc2c8c7f66
SHA256dc5e498d5465b93688dd366c5661cb624456b0982928c3778845b5d640ebf625
SHA5129739f69426a5c58aca0c4349a65417994376fd436c5cd55f2feaf30f8fe15ea80e6271fcd80f0c70f77b1f171324a11d730248429f55b80f842b8a71f2fe7be1