Analysis
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max time kernel
124s -
max time network
184s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system -
submitted
24-07-2022 14:20
Static task
static1
Behavioral task
behavioral1
Sample
836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8.exe
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8.exe
Resource
win10v2004-20220721-en
General
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Target
836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8.exe
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Size
633KB
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MD5
42cedf3737858ae589d9d230485d5978
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SHA1
c0c11971657a3979f4146d912a0aafe941a55207
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SHA256
836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8
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SHA512
2c80c12e7a350b1808294970947334590c9c4ff37b0989530a0e8789979c242e593558aa6446f9a460d1fc7af6d0554e731f96bcb719f39df78a29ac6c057d9e
Malware Config
Signatures
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NirSoft MailPassView 6 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/files/0x0007000000022e36-136.dat MailPassView behavioral2/files/0x0007000000022e36-137.dat MailPassView behavioral2/memory/2312-140-0x0000000000000000-mapping.dmp MailPassView behavioral2/memory/2312-141-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2312-143-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2312-144-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 7 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/files/0x0007000000022e36-136.dat WebBrowserPassView behavioral2/files/0x0007000000022e36-137.dat WebBrowserPassView behavioral2/memory/3652-145-0x0000000000000000-mapping.dmp WebBrowserPassView behavioral2/memory/3652-146-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/3652-148-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/3652-149-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/3652-151-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 11 IoCs
resource yara_rule behavioral2/files/0x0007000000022e36-136.dat Nirsoft behavioral2/files/0x0007000000022e36-137.dat Nirsoft behavioral2/memory/2312-140-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/2312-141-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2312-143-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2312-144-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/3652-145-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/3652-146-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/3652-148-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/3652-149-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/3652-151-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Executes dropped EXE 2 IoCs
pid Process 5044 mhaw.sfx.exe 2228 mhaw.exe -
Checks computer location settings 2 TTPs 2 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 836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8.exe Key value queried \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation mhaw.sfx.exe -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" mhaw.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 17 whatismyipaddress.com -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2228 set thread context of 2312 2228 mhaw.exe 88 PID 2228 set thread context of 3652 2228 mhaw.exe 89 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3652 vbc.exe 3652 vbc.exe 2228 mhaw.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2228 mhaw.exe -
Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 3316 wrote to memory of 616 3316 836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8.exe 81 PID 3316 wrote to memory of 616 3316 836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8.exe 81 PID 3316 wrote to memory of 616 3316 836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8.exe 81 PID 616 wrote to memory of 5044 616 cmd.exe 84 PID 616 wrote to memory of 5044 616 cmd.exe 84 PID 616 wrote to memory of 5044 616 cmd.exe 84 PID 5044 wrote to memory of 2228 5044 mhaw.sfx.exe 85 PID 5044 wrote to memory of 2228 5044 mhaw.sfx.exe 85 PID 5044 wrote to memory of 2228 5044 mhaw.sfx.exe 85 PID 2228 wrote to memory of 2312 2228 mhaw.exe 88 PID 2228 wrote to memory of 2312 2228 mhaw.exe 88 PID 2228 wrote to memory of 2312 2228 mhaw.exe 88 PID 2228 wrote to memory of 2312 2228 mhaw.exe 88 PID 2228 wrote to memory of 2312 2228 mhaw.exe 88 PID 2228 wrote to memory of 2312 2228 mhaw.exe 88 PID 2228 wrote to memory of 2312 2228 mhaw.exe 88 PID 2228 wrote to memory of 2312 2228 mhaw.exe 88 PID 2228 wrote to memory of 2312 2228 mhaw.exe 88 PID 2228 wrote to memory of 3652 2228 mhaw.exe 89 PID 2228 wrote to memory of 3652 2228 mhaw.exe 89 PID 2228 wrote to memory of 3652 2228 mhaw.exe 89 PID 2228 wrote to memory of 3652 2228 mhaw.exe 89 PID 2228 wrote to memory of 3652 2228 mhaw.exe 89 PID 2228 wrote to memory of 3652 2228 mhaw.exe 89 PID 2228 wrote to memory of 3652 2228 mhaw.exe 89 PID 2228 wrote to memory of 3652 2228 mhaw.exe 89 PID 2228 wrote to memory of 3652 2228 mhaw.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8.exe"C:\Users\Admin\AppData\Local\Temp\836a169ec95d151c273829d47fcec0f4014f540686002687d0beb668e762f3e8.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3316 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\fud.bat" "2⤵
- Suspicious use of WriteProcessMemory
PID:616 -
C:\Users\Admin\AppData\Local\Temp\RarSFX0\mhaw.sfx.exemhaw.sfx.exe -p126 -dC:\Users\Admin\AppData\Local\Temp3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5044 -
C:\Users\Admin\AppData\Local\Temp\RarSFX1\mhaw.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX1\mhaw.exe"4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2228 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"5⤵
- Accesses Microsoft Outlook accounts
PID:2312
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"5⤵
- Suspicious behavior: EnumeratesProcesses
PID:3652
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
27B
MD5278333e7bebe514e82777405c98db802
SHA167936482d1b46730345a062bb83f639649cc42bc
SHA256fa38b9a45c3c76526aba430d8325107305c3a3ab1280ed248a346edbbb8f2efe
SHA512cabf91987aaaec0f031a564c488dc410c6a8ce0fc477fd0088d60785a3b2dca31b8eb3268e2c30cfa76d15a719d0b9b507beee8130bccd587bca73b91f5aaa92
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Filesize
506KB
MD5d5ec2d8dd5c69bdab75e85e1b7ad3785
SHA109afa7be61ef4fdfe6eaaf944c40414e7e66aab6
SHA256ad20ebbe21f85b9aa02787b974a36f8617e4adecf5858f5c17a29b35e8ba6878
SHA512aefc72e55249087d58b021c39eca78742e0607aa5a1afbc69a8bab03e2c5a6a74c9ff22d00fb7544d9c9b3a3adbb09479c05bf890bd0c341d7e1f3c66f6b7829
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Filesize
506KB
MD5d5ec2d8dd5c69bdab75e85e1b7ad3785
SHA109afa7be61ef4fdfe6eaaf944c40414e7e66aab6
SHA256ad20ebbe21f85b9aa02787b974a36f8617e4adecf5858f5c17a29b35e8ba6878
SHA512aefc72e55249087d58b021c39eca78742e0607aa5a1afbc69a8bab03e2c5a6a74c9ff22d00fb7544d9c9b3a3adbb09479c05bf890bd0c341d7e1f3c66f6b7829
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Filesize
520KB
MD5a71903345e01f0e4fc7a61588231b135
SHA10047991b12692ab18a6c493ecfffab978fcb094c
SHA2563d2c8eb7fadd0adfe5daf5eba397b21e4bb89d1e13295907c9da2deb75ff3458
SHA512e3336fb9170fe41ca21090d84978e8c27c06bdbb94d6f549c82074aefcaa8626b287430710e56ee73eb58d6ea8d5e64530bcedb87e9d9c2d837beac4afb9b2cd
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Filesize
520KB
MD5a71903345e01f0e4fc7a61588231b135
SHA10047991b12692ab18a6c493ecfffab978fcb094c
SHA2563d2c8eb7fadd0adfe5daf5eba397b21e4bb89d1e13295907c9da2deb75ff3458
SHA512e3336fb9170fe41ca21090d84978e8c27c06bdbb94d6f549c82074aefcaa8626b287430710e56ee73eb58d6ea8d5e64530bcedb87e9d9c2d837beac4afb9b2cd
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Filesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196