Analysis
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max time kernel
186s -
max time network
157s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 03:04
Static task
static1
Behavioral task
behavioral1
Sample
32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe
Resource
win10v2004-20221111-en
General
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Target
32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe
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Size
521KB
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MD5
a1b89dc6328584521be91c0ce72d3d87
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SHA1
aab7aea67283b50c69e00c15db7ef922680b3d50
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SHA256
32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f
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SHA512
4a60116f47032a15edde0fa3ea61a909c336a825c703b87de8249602302b54809d2cccf0806e407ec6646289d088432530203de9cbea16c76b618385b023ad56
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SSDEEP
6144:zuRqBr74bS/QTjhUqBfxrwEnuNcSsm7IoYGW0VvBXCAt6kihwE+VDpJYWmlwnx9N:974QtqB5urTIoYWBQk1E+VF9mOx9Mi
Malware Config
Signatures
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NirSoft MailPassView 9 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule \Users\Admin\AppData\Roaming\Windows Update.exe MailPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe MailPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe MailPassView behavioral1/memory/1712-65-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1712-66-0x0000000000411654-mapping.dmp MailPassView behavioral1/memory/1712-69-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1712-71-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1712-72-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView \Users\Admin\AppData\Roaming\Windows Update.exe MailPassView -
NirSoft WebBrowserPassView 9 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule \Users\Admin\AppData\Roaming\Windows Update.exe WebBrowserPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe WebBrowserPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe WebBrowserPassView behavioral1/memory/1992-74-0x0000000000442628-mapping.dmp WebBrowserPassView behavioral1/memory/1992-73-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1992-77-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1992-78-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1992-80-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView \Users\Admin\AppData\Roaming\Windows Update.exe WebBrowserPassView -
Nirsoft 14 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Roaming\Windows Update.exe Nirsoft C:\Users\Admin\AppData\Roaming\Windows Update.exe Nirsoft C:\Users\Admin\AppData\Roaming\Windows Update.exe Nirsoft behavioral1/memory/1712-65-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1712-66-0x0000000000411654-mapping.dmp Nirsoft behavioral1/memory/1712-69-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1712-71-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1712-72-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1992-74-0x0000000000442628-mapping.dmp Nirsoft behavioral1/memory/1992-73-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1992-77-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1992-78-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1992-80-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft \Users\Admin\AppData\Roaming\Windows Update.exe Nirsoft -
Executes dropped EXE 1 IoCs
Processes:
Windows Update.exepid process 1420 Windows Update.exe -
Deletes itself 1 IoCs
Processes:
Windows Update.exepid process 1420 Windows Update.exe -
Loads dropped DLL 2 IoCs
Processes:
32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exedw20.exepid process 1736 32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe 1064 dw20.exe -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Windows Update.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" Windows Update.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 4 whatismyipaddress.com 6 whatismyipaddress.com 7 whatismyipaddress.com -
Suspicious use of SetThreadContext 2 IoCs
Processes:
Windows Update.exedescription pid process target process PID 1420 set thread context of 1712 1420 Windows Update.exe vbc.exe PID 1420 set thread context of 1992 1420 Windows Update.exe vbc.exe -
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 64 IoCs
Processes:
Windows Update.exepid process 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe 1420 Windows Update.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Windows Update.exedescription pid process Token: SeDebugPrivilege 1420 Windows Update.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Windows Update.exepid process 1420 Windows Update.exe -
Suspicious use of WriteProcessMemory 31 IoCs
Processes:
32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exeWindows Update.exedescription pid process target process PID 1736 wrote to memory of 1420 1736 32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe Windows Update.exe PID 1736 wrote to memory of 1420 1736 32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe Windows Update.exe PID 1736 wrote to memory of 1420 1736 32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe Windows Update.exe PID 1736 wrote to memory of 1420 1736 32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe Windows Update.exe PID 1736 wrote to memory of 1420 1736 32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe Windows Update.exe PID 1736 wrote to memory of 1420 1736 32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe Windows Update.exe PID 1736 wrote to memory of 1420 1736 32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe Windows Update.exe PID 1420 wrote to memory of 1712 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1712 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1712 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1712 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1712 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1712 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1712 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1712 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1712 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1712 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1992 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1992 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1992 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1992 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1992 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1992 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1992 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1992 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1992 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1992 1420 Windows Update.exe vbc.exe PID 1420 wrote to memory of 1064 1420 Windows Update.exe dw20.exe PID 1420 wrote to memory of 1064 1420 Windows Update.exe dw20.exe PID 1420 wrote to memory of 1064 1420 Windows Update.exe dw20.exe PID 1420 wrote to memory of 1064 1420 Windows Update.exe dw20.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe"C:\Users\Admin\AppData\Local\Temp\32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1736 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"2⤵
- Executes dropped EXE
- Deletes itself
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1420 -
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"3⤵
- Accesses Microsoft Outlook accounts
PID:1712 -
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"3⤵PID:1992
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exedw20.exe -x -s 14083⤵
- Loads dropped DLL
PID:1064
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
102B
MD53685613c641bcef4b45add471a4fe402
SHA1e1b307fa1782edcd2473671cb19c41d9325307b9
SHA2565ff57ebbc690004773ce065046f852597608e6b9f7bede29cabd24310a7ee6c0
SHA512cc51a946127b5035cc903c3e69428bbe3a56e86973b952f5fa368a97b459ab231d48c174249a954ab4c51916e638acb2de61ab68e9416d4e653c8fd4c8dfdb70
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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Filesize
521KB
MD5a1b89dc6328584521be91c0ce72d3d87
SHA1aab7aea67283b50c69e00c15db7ef922680b3d50
SHA25632a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f
SHA5124a60116f47032a15edde0fa3ea61a909c336a825c703b87de8249602302b54809d2cccf0806e407ec6646289d088432530203de9cbea16c76b618385b023ad56
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Filesize
521KB
MD5a1b89dc6328584521be91c0ce72d3d87
SHA1aab7aea67283b50c69e00c15db7ef922680b3d50
SHA25632a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f
SHA5124a60116f47032a15edde0fa3ea61a909c336a825c703b87de8249602302b54809d2cccf0806e407ec6646289d088432530203de9cbea16c76b618385b023ad56
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Filesize
521KB
MD5a1b89dc6328584521be91c0ce72d3d87
SHA1aab7aea67283b50c69e00c15db7ef922680b3d50
SHA25632a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f
SHA5124a60116f47032a15edde0fa3ea61a909c336a825c703b87de8249602302b54809d2cccf0806e407ec6646289d088432530203de9cbea16c76b618385b023ad56
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Filesize
521KB
MD5a1b89dc6328584521be91c0ce72d3d87
SHA1aab7aea67283b50c69e00c15db7ef922680b3d50
SHA25632a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f
SHA5124a60116f47032a15edde0fa3ea61a909c336a825c703b87de8249602302b54809d2cccf0806e407ec6646289d088432530203de9cbea16c76b618385b023ad56