Analysis
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max time kernel
150s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 11:46
Static task
static1
Behavioral task
behavioral1
Sample
PO-05nr347.exe
Resource
win7-20220414-en
General
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Target
PO-05nr347.exe
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Size
798KB
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MD5
67241ed39592f25b9d8d00bfe826affd
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SHA1
ac0d76837ffffa4065c7a617ca397d16ed259c70
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SHA256
77728dc00d957e7c3a175b58f539ed1ce895595832f3ff527aac52a10b185565
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SHA512
e077adeb8ee3eb37a47776df65f954626aa7f6db8d4ac87d30c4505cee87e103f116c90e65eb9a94283e284b866d8d254bee858e17b2e21d3aad36b3fa753ae0
Malware Config
Extracted
Protocol: smtp- Host:
smtp.mail.com - Port:
587 - Username:
fuyutong.ar@accountant.com - Password:
payments00
Signatures
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NirSoft MailPassView 6 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/976-59-0x0000000001E50000-0x0000000001ED8000-memory.dmp MailPassView behavioral1/memory/976-58-0x0000000001E50000-0x0000000001ED8000-memory.dmp MailPassView behavioral1/memory/1692-63-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1692-64-0x0000000000411654-mapping.dmp MailPassView behavioral1/memory/1692-67-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1692-69-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 6 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral1/memory/976-59-0x0000000001E50000-0x0000000001ED8000-memory.dmp WebBrowserPassView behavioral1/memory/976-58-0x0000000001E50000-0x0000000001ED8000-memory.dmp WebBrowserPassView behavioral1/memory/1520-70-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1520-71-0x0000000000442628-mapping.dmp WebBrowserPassView behavioral1/memory/1520-74-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1520-75-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 10 IoCs
Processes:
resource yara_rule behavioral1/memory/976-59-0x0000000001E50000-0x0000000001ED8000-memory.dmp Nirsoft behavioral1/memory/976-58-0x0000000001E50000-0x0000000001ED8000-memory.dmp Nirsoft behavioral1/memory/1692-63-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1692-64-0x0000000000411654-mapping.dmp Nirsoft behavioral1/memory/1692-67-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1692-69-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1520-70-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1520-71-0x0000000000442628-mapping.dmp Nirsoft behavioral1/memory/1520-74-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1520-75-0x0000000000400000-0x0000000000458000-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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.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 6 whatismyipaddress.com 7 whatismyipaddress.com 4 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
Processes:
PO-05nr347.exePO-05nr347.exedescription pid process target process PID 2032 set thread context of 976 2032 PO-05nr347.exe PO-05nr347.exe PID 976 set thread context of 1692 976 PO-05nr347.exe vbc.exe PID 976 set thread context of 1520 976 PO-05nr347.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
PO-05nr347.exePO-05nr347.exepid process 2032 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe 1556 PO-05nr347.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
PO-05nr347.exepid process 2032 PO-05nr347.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
PO-05nr347.exedescription pid process Token: SeDebugPrivilege 976 PO-05nr347.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PO-05nr347.exepid process 976 PO-05nr347.exe -
Suspicious use of WriteProcessMemory 28 IoCs
Processes:
PO-05nr347.exePO-05nr347.exedescription pid process target process PID 2032 wrote to memory of 976 2032 PO-05nr347.exe PO-05nr347.exe PID 2032 wrote to memory of 976 2032 PO-05nr347.exe PO-05nr347.exe PID 2032 wrote to memory of 976 2032 PO-05nr347.exe PO-05nr347.exe PID 2032 wrote to memory of 976 2032 PO-05nr347.exe PO-05nr347.exe PID 2032 wrote to memory of 1556 2032 PO-05nr347.exe PO-05nr347.exe PID 2032 wrote to memory of 1556 2032 PO-05nr347.exe PO-05nr347.exe PID 2032 wrote to memory of 1556 2032 PO-05nr347.exe PO-05nr347.exe PID 2032 wrote to memory of 1556 2032 PO-05nr347.exe PO-05nr347.exe PID 976 wrote to memory of 1692 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1692 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1692 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1692 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1692 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1692 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1692 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1692 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1692 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1692 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1520 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1520 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1520 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1520 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1520 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1520 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1520 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1520 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1520 976 PO-05nr347.exe vbc.exe PID 976 wrote to memory of 1520 976 PO-05nr347.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO-05nr347.exe"C:\Users\Admin\AppData\Local\Temp\PO-05nr347.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PO-05nr347.exe"C:\Users\Admin\AppData\Local\Temp\PO-05nr347.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- 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⤵
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C:\Users\Admin\AppData\Local\Temp\PO-05nr347.exe"C:\Users\Admin\AppData\Local\Temp\PO-05nr347.exe" 2 976 70823822⤵
- 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
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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memory/976-62-0x0000000074B60000-0x000000007510B000-memory.dmpFilesize
5.7MB
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memory/976-55-0x000000000051B4A0-mapping.dmp
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memory/976-59-0x0000000001E50000-0x0000000001ED8000-memory.dmpFilesize
544KB
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memory/976-58-0x0000000001E50000-0x0000000001ED8000-memory.dmpFilesize
544KB
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memory/976-68-0x00000000021B5000-0x00000000021C6000-memory.dmpFilesize
68KB
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memory/1520-70-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1520-71-0x0000000000442628-mapping.dmp
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memory/1520-74-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1520-75-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1556-56-0x0000000000000000-mapping.dmp
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memory/1692-63-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1692-64-0x0000000000411654-mapping.dmp
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memory/1692-67-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1692-69-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/2032-57-0x00000000003D0000-0x00000000003D9000-memory.dmpFilesize
36KB
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memory/2032-54-0x00000000759F1000-0x00000000759F3000-memory.dmpFilesize
8KB