Analysis
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max time kernel
157s -
max time network
165s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
12-05-2022 12:00
Static task
static1
Behavioral task
behavioral1
Sample
05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.exe
Resource
win10v2004-20220414-en
General
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Target
05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.exe
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Size
324KB
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MD5
5830cf430af8122d01cf361078a6bb93
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SHA1
c696f0be9086fc97b757187d203519593a02ce12
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SHA256
05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6
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SHA512
79a5dd555ec3423911acb491fb8edaed0ac595d2327570521d6c2e8f337c63192e0dcf2ff46161324c763f721a66f25113363c7fbd06aba2ddb5f4a30fdde5a2
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/3496-131-0x0000000004F10000-0x0000000004F56000-memory.dmp family_onlylogger behavioral2/memory/3496-132-0x0000000000400000-0x0000000004DCD000-memory.dmp family_onlylogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation 05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.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 920 3496 WerFault.exe 81 2760 3496 WerFault.exe 81 2952 3496 WerFault.exe 81 1408 3496 WerFault.exe 81 3904 3496 WerFault.exe 81 4540 3496 WerFault.exe 81 4472 3496 WerFault.exe 81 3288 3496 WerFault.exe 81 4772 3496 WerFault.exe 81 -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid Process 1460 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid Process Token: SeDebugPrivilege 1460 taskkill.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.execmd.exedescription pid Process procid_target PID 3496 wrote to memory of 4468 3496 05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.exe 101 PID 3496 wrote to memory of 4468 3496 05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.exe 101 PID 3496 wrote to memory of 4468 3496 05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.exe 101 PID 4468 wrote to memory of 1460 4468 cmd.exe 105 PID 4468 wrote to memory of 1460 4468 cmd.exe 105 PID 4468 wrote to memory of 1460 4468 cmd.exe 105
Processes
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C:\Users\Admin\AppData\Local\Temp\05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.exe"C:\Users\Admin\AppData\Local\Temp\05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3496 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 6162⤵
- Program crash
PID:920
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 6362⤵
- Program crash
PID:2760
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 6442⤵
- Program crash
PID:2952
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 6482⤵
- Program crash
PID:1408
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 7882⤵
- Program crash
PID:3904
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 8202⤵
- Program crash
PID:4540
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 10842⤵
- Program crash
PID:4472
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 12282⤵
- Program crash
PID:3288
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:4468 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "05c33a3e8abc524778d307356dc4a540bdf864b307a0f2ecd4a60c72016b9cb6.exe" /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1460
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 14042⤵
- Program crash
PID:4772
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3496 -ip 34961⤵PID:4200
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3496 -ip 34961⤵PID:4344
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3496 -ip 34961⤵PID:2140
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3496 -ip 34961⤵PID:2888
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3496 -ip 34961⤵PID:1880
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3496 -ip 34961⤵PID:208
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3496 -ip 34961⤵PID:4400
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3496 -ip 34961⤵PID:2192
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 3496 -ip 34961⤵PID:844