Analysis
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max time kernel
79s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
12-05-2022 12:00
Static task
static1
Behavioral task
behavioral1
Sample
3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.exe
Resource
win10v2004-20220414-en
General
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Target
3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.exe
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Size
231KB
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MD5
5cb1e75311bd45338d7c3daff1d841f2
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SHA1
460b6a6a4231419e241b6c82143cf763695d9116
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SHA256
3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8
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SHA512
96cdf98c78633319a3874f958a7c79944ecc9c6eb8e854df96503ebf645ecb391236f72312fa3bf61528997162c59b1ff5b5d3e9dc2949e2c5c7cc1954cce57d
Malware Config
Signatures
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OnlyLogger
A tiny loader that uses IPLogger to get its payload.
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OnlyLogger Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/716-131-0x0000000000FA0000-0x0000000000FE6000-memory.dmp family_onlylogger behavioral2/memory/716-132-0x0000000000400000-0x0000000000F97000-memory.dmp family_onlylogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation 3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 9 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exepid pid_target Process procid_target 5008 716 WerFault.exe 82 384 716 WerFault.exe 82 4104 716 WerFault.exe 82 3692 716 WerFault.exe 82 3736 716 WerFault.exe 82 3960 716 WerFault.exe 82 5108 716 WerFault.exe 82 4556 716 WerFault.exe 82 3300 716 WerFault.exe 82 -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid Process 4808 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid Process Token: SeDebugPrivilege 4808 taskkill.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.execmd.exedescription pid Process procid_target PID 716 wrote to memory of 1464 716 3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.exe 112 PID 716 wrote to memory of 1464 716 3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.exe 112 PID 716 wrote to memory of 1464 716 3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.exe 112 PID 1464 wrote to memory of 4808 1464 cmd.exe 116 PID 1464 wrote to memory of 4808 1464 cmd.exe 116 PID 1464 wrote to memory of 4808 1464 cmd.exe 116
Processes
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C:\Users\Admin\AppData\Local\Temp\3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.exe"C:\Users\Admin\AppData\Local\Temp\3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:716 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 716 -s 6122⤵
- Program crash
PID:5008
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 716 -s 6202⤵
- Program crash
PID:384
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 716 -s 7442⤵
- Program crash
PID:4104
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 716 -s 7962⤵
- Program crash
PID:3692
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 716 -s 10642⤵
- Program crash
PID:3736
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 716 -s 11122⤵
- Program crash
PID:3960
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 716 -s 11962⤵
- Program crash
PID:5108
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 716 -s 12042⤵
- Program crash
PID:4556
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:1464 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8.exe" /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4808
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 716 -s 11162⤵
- Program crash
PID:3300
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 716 -ip 7161⤵PID:4092
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 716 -ip 7161⤵PID:1080
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 716 -ip 7161⤵PID:4108
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 716 -ip 7161⤵PID:1600
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 716 -ip 7161⤵PID:3740
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 716 -ip 7161⤵PID:3560
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 716 -ip 7161⤵PID:2032
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 716 -ip 7161⤵PID:4036
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 716 -ip 7161⤵PID:1616