Analysis
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max time kernel
158s -
max time network
183s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
08-05-2022 06:21
Static task
static1
Behavioral task
behavioral1
Sample
5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.exe
Resource
win10v2004-20220414-en
General
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Target
5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.exe
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Size
443KB
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MD5
5f2d4cc6962b940f3e773e11c86d00cd
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SHA1
309e3fd0ed83381cf40e1b3f01b0edbef0563a13
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SHA256
5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0
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SHA512
f3871857c3c6806e1da7e0b391f281fffc93a111072e8b978cef75141c8012b1bab0019d717dfc80b912f8f47357a057ca3ec2a14faf8c2d93fa1f2426518ce4
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/4988-131-0x00000000028B0000-0x00000000028F6000-memory.dmp family_onlylogger behavioral2/memory/4988-132-0x0000000000400000-0x0000000000C4B000-memory.dmp family_onlylogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation 5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.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 8 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exepid pid_target Process procid_target 4336 4988 WerFault.exe 73 4540 4988 WerFault.exe 73 2456 4988 WerFault.exe 73 3612 4988 WerFault.exe 73 1848 4988 WerFault.exe 73 1928 4988 WerFault.exe 73 736 4988 WerFault.exe 73 4180 4988 WerFault.exe 73 -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid Process 3504 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid Process Token: SeDebugPrivilege 3504 taskkill.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.execmd.exedescription pid Process procid_target PID 4988 wrote to memory of 4164 4988 5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.exe 102 PID 4988 wrote to memory of 4164 4988 5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.exe 102 PID 4988 wrote to memory of 4164 4988 5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.exe 102 PID 4164 wrote to memory of 3504 4164 cmd.exe 106 PID 4164 wrote to memory of 3504 4164 cmd.exe 106 PID 4164 wrote to memory of 3504 4164 cmd.exe 106
Processes
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C:\Users\Admin\AppData\Local\Temp\5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.exe"C:\Users\Admin\AppData\Local\Temp\5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4988 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4988 -s 6122⤵
- Program crash
PID:4336
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4988 -s 6322⤵
- Program crash
PID:4540
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4988 -s 7162⤵
- Program crash
PID:2456
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4988 -s 7242⤵
- Program crash
PID:3612
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4988 -s 7242⤵
- Program crash
PID:1848
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4988 -s 10922⤵
- Program crash
PID:1928
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4988 -s 12202⤵
- Program crash
PID:736
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:4164 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "5f8160c6b2a2e6bb7c4555fc6bf61865a26674963f826d0e556ef5f4e97e3ec0.exe" /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3504
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4988 -s 13922⤵
- Program crash
PID:4180
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4988 -ip 49881⤵PID:5104
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4988 -ip 49881⤵PID:2556
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 4988 -ip 49881⤵PID:1812
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4988 -ip 49881⤵PID:3660
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4988 -ip 49881⤵PID:3552
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4988 -ip 49881⤵PID:1880
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4988 -ip 49881⤵PID:1268
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4988 -ip 49881⤵PID:1276