Analysis
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max time kernel
137s -
max time network
346s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system -
submitted
31-07-2022 17:39
Static task
static1
Behavioral task
behavioral1
Sample
5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.exe
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.exe
Resource
win10v2004-20220721-en
General
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Target
5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.exe
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Size
362KB
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MD5
8b6f3a6e8d9797093a78f0b85da4a1fc
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SHA1
2f8346a3ec3427c5a7681d166501f8f42f620b3b
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SHA256
5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8
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SHA512
c0ad94faa01f5f3fd67a90df327bd0862243c1f335ccf2582f92867f3c751dfdaf73b7e2d86bd494ca1cc8ba199db7964d61493cd37855a35acbfe0256d2f7ef
Malware Config
Signatures
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OnlyLogger
A tiny loader that uses IPLogger to get its payload.
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OnlyLogger payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/4052-131-0x00000000030C0000-0x0000000003109000-memory.dmp family_onlylogger behavioral2/memory/4052-132-0x0000000000400000-0x0000000002F22000-memory.dmp family_onlylogger behavioral2/memory/4052-137-0x0000000000400000-0x0000000002F22000-memory.dmp family_onlylogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation 5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.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
Processes:
WerFault.exepid pid_target process target process 1888 4052 WerFault.exe 5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 3492 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 3492 taskkill.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.execmd.exedescription pid process target process PID 4052 wrote to memory of 2824 4052 5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.exe cmd.exe PID 4052 wrote to memory of 2824 4052 5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.exe cmd.exe PID 4052 wrote to memory of 2824 4052 5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.exe cmd.exe PID 2824 wrote to memory of 3492 2824 cmd.exe taskkill.exe PID 2824 wrote to memory of 3492 2824 cmd.exe taskkill.exe PID 2824 wrote to memory of 3492 2824 cmd.exe taskkill.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.exe"C:\Users\Admin\AppData\Local\Temp\5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4052 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:2824 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "5f465c9a74f35fef4a66cbf336dc90bed8bc8caf7b51a98cb52406942c05a0e8.exe" /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3492 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 9882⤵
- Program crash
PID:1888
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4052 -ip 40521⤵PID:4260