Analysis
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max time kernel
153s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 09:40
Static task
static1
Behavioral task
behavioral1
Sample
64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe
Resource
win7-20221111-en
General
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Target
64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe
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Size
469KB
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MD5
281301ef0a83967024fb992845b603a0
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SHA1
5e84df4a2fe03de8bb25a916b5759abdcb446aa6
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SHA256
64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b
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SHA512
4cd90a7cd0c8acfd8fb16c434cd7a1af46f5a3eb9aee8a20315fb441eeb0b7bd9d97a4110410baedab06c81ba8c71ef90d820577d366b7ed447486d6f88831a5
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SSDEEP
12288:nvYoZfvS2EYifLrH8MdW9ibn0C+CKp45:nwoZfvWLxoyn0DCD5
Malware Config
Extracted
Protocol: smtp- Host:
smtp.gmail.com - Port:
587 - Username:
[email protected] - Password:
4949solo
Signatures
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NirSoft MailPassView 5 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral2/memory/4400-135-0x0000000000400000-0x0000000000484000-memory.dmp MailPassView behavioral2/memory/4608-154-0x0000000000000000-mapping.dmp MailPassView behavioral2/memory/4608-155-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/4608-157-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/4608-158-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 6 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/4400-135-0x0000000000400000-0x0000000000484000-memory.dmp WebBrowserPassView behavioral2/memory/788-159-0x0000000000000000-mapping.dmp WebBrowserPassView behavioral2/memory/788-160-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/788-162-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/788-163-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/788-165-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 10 IoCs
Processes:
resource yara_rule behavioral2/memory/4400-135-0x0000000000400000-0x0000000000484000-memory.dmp Nirsoft behavioral2/memory/4608-154-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/4608-155-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/4608-157-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/4608-158-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/788-159-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/788-160-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/788-162-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/788-163-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/788-165-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Executes dropped EXE 3 IoCs
Processes:
Windows Update.exeWindows Update.exeWindows Update.exepid process 1352 Windows Update.exe 3748 Windows Update.exe 4004 Windows Update.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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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-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 46 whatismyipaddress.com 44 whatismyipaddress.com -
Suspicious use of SetThreadContext 4 IoCs
Processes:
64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exeWindows Update.exeWindows Update.exedescription pid process target process PID 4660 set thread context of 4400 4660 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe PID 1352 set thread context of 4004 1352 Windows Update.exe Windows Update.exe PID 4004 set thread context of 4608 4004 Windows Update.exe vbc.exe PID 4004 set thread context of 788 4004 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.exeWindows Update.exepid process 1352 Windows Update.exe 1352 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe 4004 Windows Update.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Windows Update.exeWindows Update.exedescription pid process Token: SeDebugPrivilege 1352 Windows Update.exe Token: SeDebugPrivilege 4004 Windows Update.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Windows Update.exepid process 4004 Windows Update.exe -
Suspicious use of WriteProcessMemory 40 IoCs
Processes:
64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exeWindows Update.exeWindows Update.exedescription pid process target process PID 4660 wrote to memory of 4400 4660 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe PID 4660 wrote to memory of 4400 4660 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe PID 4660 wrote to memory of 4400 4660 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe PID 4660 wrote to memory of 4400 4660 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe PID 4660 wrote to memory of 4400 4660 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe PID 4660 wrote to memory of 4400 4660 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe PID 4660 wrote to memory of 4400 4660 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe PID 4660 wrote to memory of 4400 4660 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe PID 4400 wrote to memory of 1352 4400 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe Windows Update.exe PID 4400 wrote to memory of 1352 4400 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe Windows Update.exe PID 4400 wrote to memory of 1352 4400 64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe Windows Update.exe PID 1352 wrote to memory of 3748 1352 Windows Update.exe Windows Update.exe PID 1352 wrote to memory of 3748 1352 Windows Update.exe Windows Update.exe PID 1352 wrote to memory of 3748 1352 Windows Update.exe Windows Update.exe PID 1352 wrote to memory of 4004 1352 Windows Update.exe Windows Update.exe PID 1352 wrote to memory of 4004 1352 Windows Update.exe Windows Update.exe PID 1352 wrote to memory of 4004 1352 Windows Update.exe Windows Update.exe PID 1352 wrote to memory of 4004 1352 Windows Update.exe Windows Update.exe PID 1352 wrote to memory of 4004 1352 Windows Update.exe Windows Update.exe PID 1352 wrote to memory of 4004 1352 Windows Update.exe Windows Update.exe PID 1352 wrote to memory of 4004 1352 Windows Update.exe Windows Update.exe PID 1352 wrote to memory of 4004 1352 Windows Update.exe Windows Update.exe PID 4004 wrote to memory of 4608 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 4608 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 4608 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 4608 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 4608 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 4608 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 4608 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 4608 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 4608 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 788 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 788 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 788 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 788 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 788 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 788 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 788 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 788 4004 Windows Update.exe vbc.exe PID 4004 wrote to memory of 788 4004 Windows Update.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe"C:\Users\Admin\AppData\Local\Temp\64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4660 -
C:\Users\Admin\AppData\Local\Temp\64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe"C:\Users\Admin\AppData\Local\Temp\64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe"2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4400 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1352 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"4⤵
- Executes dropped EXE
PID:3748 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4004 -
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:4608 -
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⤵PID:788
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe.log
Filesize594B
MD5fdb26b3b547022b45cfaeee57eafd566
SHA111c6798b8a59233f404014c5e79b3363cd564b37
SHA2562707fc7f074413881b7bafca05079327b188db6005709951e7f69d39a2af97c0
SHA51244d9bb8c0f0b341690d00eda86e15a50f7f29ce9595925c1a2a7e19ad26202d10049a7a97bea278ecb7d429ad555de8edceeffff664d4b06309a9410a09bb700
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Filesize
774B
MD5fc93eb9acb036dc0adcb7e9203deae84
SHA1f6180e425e36b03252e18d9edb38c853a0546226
SHA2568da330d49f43e46c3c34a7283f168ab399a37280b490503d7e7ca8ff34eaddae
SHA5128ed8c6f1199da12f71819be099b2f129eced45e27e7bd7e1efbb07b09c7102bd31aaa9c39de85c9a583963b9331248d53d76eec0eb2b8ba7173ab0fdef25a620
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Filesize
102B
MD598c21eda36e1b039a898577de56da9f6
SHA1941587260de70b9efda5b0a46133277edf5f0770
SHA256fa88869a320430cc0cdabfd53fabed5f270bc3d2c4470adbcfd3e4b697d3bfc6
SHA51205ec83871c73b4392961b92b06fb189e4ba05495df58ce137319a756fc505264b5f0f6d27deaceb1a44aa301ca9fd6f887f1681c26b2174ecde126751c885c49
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Filesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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Filesize
469KB
MD5281301ef0a83967024fb992845b603a0
SHA15e84df4a2fe03de8bb25a916b5759abdcb446aa6
SHA25664a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b
SHA5124cd90a7cd0c8acfd8fb16c434cd7a1af46f5a3eb9aee8a20315fb441eeb0b7bd9d97a4110410baedab06c81ba8c71ef90d820577d366b7ed447486d6f88831a5
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Filesize
469KB
MD5281301ef0a83967024fb992845b603a0
SHA15e84df4a2fe03de8bb25a916b5759abdcb446aa6
SHA25664a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b
SHA5124cd90a7cd0c8acfd8fb16c434cd7a1af46f5a3eb9aee8a20315fb441eeb0b7bd9d97a4110410baedab06c81ba8c71ef90d820577d366b7ed447486d6f88831a5
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Filesize
469KB
MD5281301ef0a83967024fb992845b603a0
SHA15e84df4a2fe03de8bb25a916b5759abdcb446aa6
SHA25664a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b
SHA5124cd90a7cd0c8acfd8fb16c434cd7a1af46f5a3eb9aee8a20315fb441eeb0b7bd9d97a4110410baedab06c81ba8c71ef90d820577d366b7ed447486d6f88831a5
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Filesize
469KB
MD5281301ef0a83967024fb992845b603a0
SHA15e84df4a2fe03de8bb25a916b5759abdcb446aa6
SHA25664a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b
SHA5124cd90a7cd0c8acfd8fb16c434cd7a1af46f5a3eb9aee8a20315fb441eeb0b7bd9d97a4110410baedab06c81ba8c71ef90d820577d366b7ed447486d6f88831a5