Analysis
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max time kernel
148s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10-11-2024 16:40
Static task
static1
Behavioral task
behavioral1
Sample
ohtie89k.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
ohtie89k.exe
Resource
win10v2004-20241007-en
General
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Target
ohtie89k.exe
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Size
148KB
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MD5
ba57c75d6c4e2936f6cad4a1ba4c29d1
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SHA1
8299498803759fbb63a323b0ad64694d72d0c352
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SHA256
c54714fec4a8cab57d0f0304210fc2f4f50f6fbcee80fc2d3db9cf30a31853d2
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SHA512
3dcf87f4242b0c71c35c28f9f68e9994df8ce0888119ace1d4433303d22d856e45bf47dd88d7c4c5b32c2806f60187470f1548296bbfd7d27f87bb6526f7a10b
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SSDEEP
3072:sFZbBnzDocMDOhTxVpK4x3ZlhNxB2S+T0Wu4wvAaqifHulgOw:SBnrMDuR95HjxBT+T0zk4Yh
Malware Config
Extracted
xworm
mylogsprvt.zapto.org:8899
SmH2L0949LC6zVSS
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install_file
USB.exe
Extracted
redline
newest
mylogsprvt.zapto.org:45630
Signatures
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Detect Xworm Payload 2 IoCs
Processes:
resource yara_rule behavioral2/files/0x0007000000023c87-16.dat family_xworm behavioral2/memory/3672-24-0x0000000000FC0000-0x0000000000FD2000-memory.dmp family_xworm -
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload 2 IoCs
Processes:
resource yara_rule behavioral2/files/0x000c000000023b90-6.dat family_redline behavioral2/memory/1172-28-0x00000000004F0000-0x000000000050E000-memory.dmp family_redline -
Redline family
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SectopRAT payload 2 IoCs
Processes:
resource yara_rule behavioral2/files/0x000c000000023b90-6.dat family_sectoprat behavioral2/memory/1172-28-0x00000000004F0000-0x000000000050E000-memory.dmp family_sectoprat -
Sectoprat family
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Xworm family
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
ohtie89k.exeservice.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation ohtie89k.exe Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation service.exe -
Drops startup file 2 IoCs
Processes:
service.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\service.exe service.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\service.exe service.exe -
Executes dropped EXE 4 IoCs
Processes:
windows.exeservice.exeservice.exeservice.exepid Process 1172 windows.exe 3672 service.exe 3116 service.exe 1688 service.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
service.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\service = "C:\\Users\\Admin\\AppData\\Roaming\\service.exe" service.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
windows.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language windows.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
windows.exedescription pid Process Token: SeDebugPrivilege 1172 windows.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
ohtie89k.exeservice.exedescription pid Process procid_target PID 216 wrote to memory of 1172 216 ohtie89k.exe 83 PID 216 wrote to memory of 1172 216 ohtie89k.exe 83 PID 216 wrote to memory of 1172 216 ohtie89k.exe 83 PID 216 wrote to memory of 3672 216 ohtie89k.exe 84 PID 216 wrote to memory of 3672 216 ohtie89k.exe 84 PID 3672 wrote to memory of 1868 3672 service.exe 88 PID 3672 wrote to memory of 1868 3672 service.exe 88 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\ohtie89k.exe"C:\Users\Admin\AppData\Local\Temp\ohtie89k.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:216 -
C:\ProgramData\windows.exe"C:\ProgramData\windows.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1172
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C:\ProgramData\service.exe"C:\ProgramData\service.exe"2⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3672 -
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 1 /tn "service" /tr "C:\Users\Admin\AppData\Roaming\service.exe"3⤵
- Scheduled Task/Job: Scheduled Task
PID:1868
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C:\Users\Admin\AppData\Roaming\service.exeC:\Users\Admin\AppData\Roaming\service.exe1⤵
- Executes dropped EXE
PID:3116
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C:\Users\Admin\AppData\Roaming\service.exeC:\Users\Admin\AppData\Roaming\service.exe1⤵
- Executes dropped EXE
PID:1688
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
44KB
MD54281b5461ba14bd8d120b72d4c7e12aa
SHA1ce0dc0fa3daead9d9cf8d97699144118af68c91c
SHA2564d1c2ad91414be21420eea26ab49e3583e9d7ded659f969d3a23909c8ce17810
SHA512a7dc39d25f6c2fb6ea09e2037b5cb95d6141698d5f7051ccb84d1742c20e43520e795f718fa1d1196007e764a05d893d57f8ac6f23df0a18da40cc7b738291a2
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Filesize
95KB
MD593d6bdf913cab64fec58c765afdba3d4
SHA1ea2aa579723c407e944edca127e0850e349c8011
SHA256d525c300a08bb594ee6e385d1c145d857935ed0303a534fcb47dc1637d2f03c6
SHA51254bd792b65d01bd8b1b1aa43c3cbd20e0028966a264b1d117660acb279587b92a903ac7c82e66a35265644dde212179a9406fec756ca2da239f228459a4b73e4
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Filesize
1KB
MD5a8a147915e3a996fdbe10b3a3f1e1bb2
SHA1abc564c1be468d57e700913e7b6cf8f62d421263
SHA2568b96a8557deea66696837af011843d6a82451ba57c8f9b5a2726a70818d6fc7e
SHA51217b42f17ef60a9f625703172763f692e5ed2ca93564a97853dfa72bb0ac6305ef3267aea0b205938e3aa8eac10156d9d4f322b30d0329d92d647bcec6372731c