Analysis
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max time kernel
92s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03-10-2022 01:06
Static task
static1
Behavioral task
behavioral1
Sample
753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe
Resource
win7-20220901-en
General
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Target
753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe
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Size
605KB
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MD5
7270fdc94415ed1e89adc4e7aada2f40
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SHA1
81a0ae34f505d7de109bdf3297786cd2e74939d2
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SHA256
753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0
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SHA512
a62b4988485cf11b270ba050ef41d08e5977e6256d6bb36d93860aceabfee6073d1e0dbf8e93e5ac499c940e1616c16fc231cf897aca508dcb6d22ae6b6b297b
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SSDEEP
12288:/kh1WmeOfOkCQEn1NNJO1MJ9fGTCWw+YeUMhjJunR9kB5JCm:cnWmeOf2QcbO1W9CuxRSB5
Malware Config
Signatures
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NirSoft MailPassView 6 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral2/memory/4476-135-0x0000000000400000-0x0000000000484000-memory.dmp MailPassView behavioral2/memory/2988-139-0x0000000000000000-mapping.dmp MailPassView behavioral2/memory/2988-140-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2988-142-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2988-143-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2988-144-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 6 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/4476-135-0x0000000000400000-0x0000000000484000-memory.dmp WebBrowserPassView behavioral2/memory/1736-145-0x0000000000000000-mapping.dmp WebBrowserPassView behavioral2/memory/1736-146-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/1736-148-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/1736-149-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/1736-151-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 11 IoCs
Processes:
resource yara_rule behavioral2/memory/4476-135-0x0000000000400000-0x0000000000484000-memory.dmp Nirsoft behavioral2/memory/2988-139-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/2988-140-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2988-142-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2988-143-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2988-144-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/1736-145-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/1736-146-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/1736-148-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/1736-149-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/1736-151-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
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 33 whatismyipaddress.com 35 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
Processes:
753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exeRegAsm.exedescription pid process target process PID 4992 set thread context of 4476 4992 753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe RegAsm.exe PID 4476 set thread context of 2988 4476 RegAsm.exe vbc.exe PID 4476 set thread context of 1736 4476 RegAsm.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
vbc.exepid process 1736 vbc.exe 1736 vbc.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exeRegAsm.exedescription pid process Token: SeDebugPrivilege 4992 753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe Token: SeDebugPrivilege 4476 RegAsm.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exeRegAsm.exedescription pid process target process PID 4992 wrote to memory of 4476 4992 753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe RegAsm.exe PID 4992 wrote to memory of 4476 4992 753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe RegAsm.exe PID 4992 wrote to memory of 4476 4992 753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe RegAsm.exe PID 4992 wrote to memory of 4476 4992 753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe RegAsm.exe PID 4992 wrote to memory of 4476 4992 753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe RegAsm.exe PID 4992 wrote to memory of 4476 4992 753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe RegAsm.exe PID 4992 wrote to memory of 4476 4992 753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe RegAsm.exe PID 4992 wrote to memory of 4476 4992 753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe RegAsm.exe PID 4476 wrote to memory of 2988 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 2988 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 2988 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 2988 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 2988 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 2988 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 2988 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 2988 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 2988 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 1736 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 1736 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 1736 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 1736 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 1736 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 1736 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 1736 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 1736 4476 RegAsm.exe vbc.exe PID 4476 wrote to memory of 1736 4476 RegAsm.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe"C:\Users\Admin\AppData\Local\Temp\753d42fe5e1c7fbcaf77d6356e446f6eef7c31c85b0a7947a2c9620b7076c5b0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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\holdermail.txt"3⤵
- Accesses Microsoft Outlook accounts
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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"3⤵
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\holderwb.txtFilesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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memory/1736-145-0x0000000000000000-mapping.dmp
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memory/1736-151-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1736-149-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1736-148-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1736-146-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/2988-140-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/2988-139-0x0000000000000000-mapping.dmp
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memory/2988-142-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/2988-143-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/2988-144-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/4476-138-0x0000000074A30000-0x0000000074FE1000-memory.dmpFilesize
5.7MB
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memory/4476-136-0x0000000074A30000-0x0000000074FE1000-memory.dmpFilesize
5.7MB
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memory/4476-135-0x0000000000400000-0x0000000000484000-memory.dmpFilesize
528KB
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memory/4476-134-0x0000000000000000-mapping.dmp
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memory/4992-132-0x0000000074A30000-0x0000000074FE1000-memory.dmpFilesize
5.7MB
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memory/4992-137-0x0000000074A30000-0x0000000074FE1000-memory.dmpFilesize
5.7MB
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memory/4992-133-0x0000000074A30000-0x0000000074FE1000-memory.dmpFilesize
5.7MB