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Analysis
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max time kernel
151s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
30/10/2022, 11:44
Static task
static1
Behavioral task
behavioral1
Sample
f191664e09320044aea809e4972e61cbdd25de7c7d96c22b1ac843933309b928.dll
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
f191664e09320044aea809e4972e61cbdd25de7c7d96c22b1ac843933309b928.dll
Resource
win10v2004-20220901-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
f191664e09320044aea809e4972e61cbdd25de7c7d96c22b1ac843933309b928.dll
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Size
71KB
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MD5
9340fa9e8a2c8eb8566a700001a39087
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SHA1
4b457daf14d5029a53b7f2696afbb1651df12554
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SHA256
f191664e09320044aea809e4972e61cbdd25de7c7d96c22b1ac843933309b928
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SHA512
57d6b7adb40274b1b98f1d2204d8415cd22fda01026688ce6b09e4a242b7ecb06a347bfb866eba41f45456549c195b882a32422431dfb431a6a8d51fbcef2537
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SSDEEP
768:0kSpisvuzgdwMG9hl7c1M5uEcnZ99AO3z9p38MpMXTnkx+UZJnbkpHx4Bn4LZ7:9SplSbm1rtAO3zfMMpwD4nJnbhBn49
Score
8/10
Malware Config
Signatures
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Blocklisted process makes network request 8 IoCs
flow pid Process 10 1656 rundll32.exe 16 1656 rundll32.exe 26 1656 rundll32.exe 39 1656 rundll32.exe 43 1656 rundll32.exe 47 1656 rundll32.exe 48 1656 rundll32.exe 49 1656 rundll32.exe -
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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 1656 rundll32.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\Microsoft Shared\bjhgf.dll rundll32.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\bjhgf.dll rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Runs .reg file with regedit 1 IoCs
pid Process 1780 regedit.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe 1656 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe Token: SeDebugPrivilege 1656 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4764 wrote to memory of 3912 4764 rundll32.exe 82 PID 4764 wrote to memory of 3912 4764 rundll32.exe 82 PID 4764 wrote to memory of 3912 4764 rundll32.exe 82 PID 3912 wrote to memory of 1780 3912 rundll32.exe 83 PID 3912 wrote to memory of 1780 3912 rundll32.exe 83 PID 3912 wrote to memory of 1780 3912 rundll32.exe 83 PID 3912 wrote to memory of 1656 3912 rundll32.exe 84 PID 3912 wrote to memory of 1656 3912 rundll32.exe 84 PID 3912 wrote to memory of 1656 3912 rundll32.exe 84
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f191664e09320044aea809e4972e61cbdd25de7c7d96c22b1ac843933309b928.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4764 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f191664e09320044aea809e4972e61cbdd25de7c7d96c22b1ac843933309b928.dll,#12⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3912 -
C:\Windows\SysWOW64\regedit.exeregedit.exe -s "C:\Users\Admin\AppData\Local\Temp\bjhgfreg.reg"3⤵
- Runs .reg file with regedit
PID:1780
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" "C:\Program Files\Common Files\Microsoft Shared\bjhgf.dll",polmxhat3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1656
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
71KB
MD59340fa9e8a2c8eb8566a700001a39087
SHA14b457daf14d5029a53b7f2696afbb1651df12554
SHA256f191664e09320044aea809e4972e61cbdd25de7c7d96c22b1ac843933309b928
SHA51257d6b7adb40274b1b98f1d2204d8415cd22fda01026688ce6b09e4a242b7ecb06a347bfb866eba41f45456549c195b882a32422431dfb431a6a8d51fbcef2537
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Filesize
71KB
MD59340fa9e8a2c8eb8566a700001a39087
SHA14b457daf14d5029a53b7f2696afbb1651df12554
SHA256f191664e09320044aea809e4972e61cbdd25de7c7d96c22b1ac843933309b928
SHA51257d6b7adb40274b1b98f1d2204d8415cd22fda01026688ce6b09e4a242b7ecb06a347bfb866eba41f45456549c195b882a32422431dfb431a6a8d51fbcef2537