Analysis
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max time kernel
151s -
max time network
90s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 01:35
Static task
static1
Behavioral task
behavioral1
Sample
Payment_PO.exe
Resource
win7-20220414-en
General
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Target
Payment_PO.exe
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Size
627KB
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MD5
7d98f4732cff55ffe7505d4c020ac2dc
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SHA1
ec9b164ea991a90ec7224a3612ca7303a24edf05
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SHA256
893c4fed40fd177ccf67add3628dafa31ce34c2e3b77aac29fcc6d2b52be9ef4
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SHA512
49cda046d919a9bd39e19ccfbd3136689f9b7e8edbaf3b0dcce3bb62dec3ac80b2e28c247176cf92dfb95c0800a6fb9d24d5442220ea5112ee31340e3b3ad858
Malware Config
Signatures
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NirSoft MailPassView 5 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/2040-60-0x0000000000400000-0x0000000000488000-memory.dmp MailPassView behavioral1/memory/1552-63-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1552-64-0x0000000000411654-mapping.dmp MailPassView behavioral1/memory/1552-67-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1552-68-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 5 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral1/memory/2040-60-0x0000000000400000-0x0000000000488000-memory.dmp WebBrowserPassView behavioral1/memory/1492-69-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1492-70-0x0000000000442628-mapping.dmp WebBrowserPassView behavioral1/memory/1492-73-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1492-74-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 9 IoCs
Processes:
resource yara_rule behavioral1/memory/2040-60-0x0000000000400000-0x0000000000488000-memory.dmp Nirsoft behavioral1/memory/1552-63-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1552-64-0x0000000000411654-mapping.dmp Nirsoft behavioral1/memory/1552-67-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1552-68-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1492-69-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1492-70-0x0000000000442628-mapping.dmp Nirsoft behavioral1/memory/1492-73-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1492-74-0x0000000000400000-0x0000000000458000-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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.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.
Processes:
flow ioc 3 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
Processes:
Payment_PO.exeRegAsm.exedescription pid process target process PID 604 set thread context of 2040 604 Payment_PO.exe RegAsm.exe PID 2040 set thread context of 1552 2040 RegAsm.exe vbc.exe PID 2040 set thread context of 1492 2040 RegAsm.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
RegAsm.exepid process 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe 2040 RegAsm.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
Payment_PO.exepid process 604 Payment_PO.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 2040 RegAsm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
RegAsm.exepid process 2040 RegAsm.exe -
Suspicious use of WriteProcessMemory 28 IoCs
Processes:
Payment_PO.exeRegAsm.exedescription pid process target process PID 604 wrote to memory of 2040 604 Payment_PO.exe RegAsm.exe PID 604 wrote to memory of 2040 604 Payment_PO.exe RegAsm.exe PID 604 wrote to memory of 2040 604 Payment_PO.exe RegAsm.exe PID 604 wrote to memory of 2040 604 Payment_PO.exe RegAsm.exe PID 604 wrote to memory of 2040 604 Payment_PO.exe RegAsm.exe PID 604 wrote to memory of 2040 604 Payment_PO.exe RegAsm.exe PID 604 wrote to memory of 2040 604 Payment_PO.exe RegAsm.exe PID 604 wrote to memory of 2040 604 Payment_PO.exe RegAsm.exe PID 2040 wrote to memory of 1552 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1552 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1552 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1552 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1552 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1552 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1552 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1552 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1552 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1552 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1492 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1492 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1492 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1492 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1492 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1492 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1492 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1492 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1492 2040 RegAsm.exe vbc.exe PID 2040 wrote to memory of 1492 2040 RegAsm.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Payment_PO.exe"C:\Users\Admin\AppData\Local\Temp\Payment_PO.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:604 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2040 -
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:1552 -
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:1492
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\holderwb.txtFilesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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memory/604-54-0x00000000012C0000-0x0000000001364000-memory.dmpFilesize
656KB
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memory/604-55-0x00000000007C0000-0x0000000000850000-memory.dmpFilesize
576KB
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memory/604-56-0x00000000757C1000-0x00000000757C3000-memory.dmpFilesize
8KB
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memory/604-58-0x0000000000380000-0x0000000000383000-memory.dmpFilesize
12KB
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memory/1492-69-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1492-70-0x0000000000442628-mapping.dmp
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memory/1492-73-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1492-74-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1552-63-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1552-64-0x0000000000411654-mapping.dmp
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memory/1552-67-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1552-68-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/2040-61-0x0000000004C75000-0x0000000004C86000-memory.dmpFilesize
68KB
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memory/2040-62-0x0000000000910000-0x0000000000918000-memory.dmpFilesize
32KB
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memory/2040-60-0x0000000000400000-0x0000000000488000-memory.dmpFilesize
544KB
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memory/2040-57-0x0000000000480C5E-mapping.dmp