Analysis
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max time kernel
169s -
max time network
174s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system -
submitted
02-08-2022 03:07
Static task
static1
Behavioral task
behavioral1
Sample
5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe
Resource
win7-20220715-en
General
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Target
5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe
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Size
321KB
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MD5
b3dfddeb4e98e313447abeba696138a9
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SHA1
e896f357b169a6fcab180aa5c7ed2ef05b21fd0c
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SHA256
5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b
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SHA512
7a2db2991c2fd31c40b1c4406532a8eefae777525e3a4cb28815bf29b5f3a0f3fbe17cc433c065c7b31a8f7f74d55c592841e48bc8e81999a3ada18a17e8c76d
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4552 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.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-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe File opened for modification C:\Windows\assembly\Desktop.ini 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe File created C:\Windows\assembly\Desktop.ini 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe File opened for modification C:\Windows\assembly\Desktop.ini 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Runs ping.exe 1 TTPs 1 IoCs
pid Process 1300 PING.EXE -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4552 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4692 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe Token: SeDebugPrivilege 4552 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe Token: 33 4552 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe Token: SeIncBasePriorityPrivilege 4552 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4552 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4692 wrote to memory of 4552 4692 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe 82 PID 4692 wrote to memory of 4552 4692 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe 82 PID 4692 wrote to memory of 4552 4692 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe 82 PID 4692 wrote to memory of 816 4692 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe 83 PID 4692 wrote to memory of 816 4692 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe 83 PID 4692 wrote to memory of 816 4692 5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe 83 PID 816 wrote to memory of 1300 816 cmd.exe 85 PID 816 wrote to memory of 1300 816 cmd.exe 85 PID 816 wrote to memory of 1300 816 cmd.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe"C:\Users\Admin\AppData\Local\Temp\5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4692 -
C:\Users\Admin\AppData\Local\Temp\5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b\5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe"C:\Users\Admin\AppData\Local\Temp\5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b\5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe"2⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4552
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 1000 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:816 -
C:\Windows\SysWOW64\PING.EXEping 1.1.1.1 -n 1 -w 10003⤵
- Runs ping.exe
PID:1300
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵PID:2164
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b\5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe
Filesize321KB
MD5b3dfddeb4e98e313447abeba696138a9
SHA1e896f357b169a6fcab180aa5c7ed2ef05b21fd0c
SHA2565a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b
SHA5127a2db2991c2fd31c40b1c4406532a8eefae777525e3a4cb28815bf29b5f3a0f3fbe17cc433c065c7b31a8f7f74d55c592841e48bc8e81999a3ada18a17e8c76d
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C:\Users\Admin\AppData\Local\Temp\5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b\5a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b.exe
Filesize321KB
MD5b3dfddeb4e98e313447abeba696138a9
SHA1e896f357b169a6fcab180aa5c7ed2ef05b21fd0c
SHA2565a8fc9009eb0736d835ee5223ea98cb964d4798147aee07dc60b9bffd1ed710b
SHA5127a2db2991c2fd31c40b1c4406532a8eefae777525e3a4cb28815bf29b5f3a0f3fbe17cc433c065c7b31a8f7f74d55c592841e48bc8e81999a3ada18a17e8c76d