Analysis
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max time kernel
113s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
18-04-2022 12:01
Static task
static1
Behavioral task
behavioral1
Sample
fdd375602e7d7b5cd501c0341ba41be71864e6cbda9e36640f98d3130ca8e79e.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
fdd375602e7d7b5cd501c0341ba41be71864e6cbda9e36640f98d3130ca8e79e.exe
Resource
win10v2004-20220414-en
General
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Target
fdd375602e7d7b5cd501c0341ba41be71864e6cbda9e36640f98d3130ca8e79e.exe
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Size
236KB
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MD5
19fd3e358ed31e6f007306810bbc8642
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SHA1
c13ecc929531524e39675bae83d521694d810c38
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SHA256
fdd375602e7d7b5cd501c0341ba41be71864e6cbda9e36640f98d3130ca8e79e
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SHA512
017900aebeee65f4dca5bdbf5fa711d68f474fa0e6ae632ecd4dba695b1f8f2bda04f8fbfcece8b084b395ff0decb25706968d33b398c82205d53f0be41d3bdb
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
resource yara_rule behavioral2/memory/1204-132-0x0000000002230000-0x0000000002276000-memory.dmp family_onlylogger behavioral2/memory/1204-133-0x0000000000400000-0x00000000004F6000-memory.dmp family_onlylogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation fdd375602e7d7b5cd501c0341ba41be71864e6cbda9e36640f98d3130ca8e79e.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 1 IoCs
pid pid_target Process procid_target 2348 1204 WerFault.exe 77 -
Kills process with taskkill 1 IoCs
pid Process 940 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 940 taskkill.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1204 wrote to memory of 4212 1204 fdd375602e7d7b5cd501c0341ba41be71864e6cbda9e36640f98d3130ca8e79e.exe 78 PID 1204 wrote to memory of 4212 1204 fdd375602e7d7b5cd501c0341ba41be71864e6cbda9e36640f98d3130ca8e79e.exe 78 PID 1204 wrote to memory of 4212 1204 fdd375602e7d7b5cd501c0341ba41be71864e6cbda9e36640f98d3130ca8e79e.exe 78 PID 4212 wrote to memory of 940 4212 cmd.exe 81 PID 4212 wrote to memory of 940 4212 cmd.exe 81 PID 4212 wrote to memory of 940 4212 cmd.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\fdd375602e7d7b5cd501c0341ba41be71864e6cbda9e36640f98d3130ca8e79e.exe"C:\Users\Admin\AppData\Local\Temp\fdd375602e7d7b5cd501c0341ba41be71864e6cbda9e36640f98d3130ca8e79e.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1204 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "fdd375602e7d7b5cd501c0341ba41be71864e6cbda9e36640f98d3130ca8e79e.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\fdd375602e7d7b5cd501c0341ba41be71864e6cbda9e36640f98d3130ca8e79e.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:4212 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "fdd375602e7d7b5cd501c0341ba41be71864e6cbda9e36640f98d3130ca8e79e.exe" /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:940
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1204 -s 12762⤵
- Program crash
PID:2348
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1204 -ip 12041⤵PID:2396