Analysis
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max time kernel
149s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
10-07-2023 13:16
Static task
static1
Behavioral task
behavioral1
Sample
746d8f96f8153a4e45bb998ec.exe
Resource
win7-20230703-en
Behavioral task
behavioral2
Sample
746d8f96f8153a4e45bb998ec.exe
Resource
win10v2004-20230703-en
General
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Target
746d8f96f8153a4e45bb998ec.exe
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Size
520KB
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MD5
42975e59f70448efb621c1f9c4bca01b
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SHA1
acd00215d93e8e81d32e10d0a88127da4133c1da
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SHA256
746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc
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SHA512
312ef962115a65a13459702995c6b71363238658a4fe2bbf1075bc5333aff03eafdae83999a6789cff9ee1c3a0bcdcea1c37ad18629a60eef2ce21587440afcc
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SSDEEP
6144:uuaqLk33bS/QTjhUqBfxrwEnuNcSsm7IoYGW0VvBXCAt6kihwE+VDpJYWmlwnx9v:y33QtqB5urTIoYWBQk1E+VF9mOx9Vi
Malware Config
Extracted
Protocol: ftp- Host:
ftp.lucd.ru - Port:
21 - Username:
emma2221@lucd.ru - Password:
doll@@2020
Signatures
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NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral2/memory/4656-139-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/4656-141-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/4656-143-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 4 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/5016-146-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/5016-148-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/5016-152-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/5016-156-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 7 IoCs
Processes:
resource yara_rule behavioral2/memory/4656-139-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/4656-141-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/4656-143-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/5016-146-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/5016-148-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/5016-152-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/5016-156-0x0000000000400000-0x0000000000458000-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-1-5-21-1498570331-2313266200-788959944-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
746d8f96f8153a4e45bb998ec.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" 746d8f96f8153a4e45bb998ec.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 15 whatismyipaddress.com 17 whatismyipaddress.com -
Suspicious use of SetThreadContext 2 IoCs
Processes:
746d8f96f8153a4e45bb998ec.exedescription pid process target process PID 2552 set thread context of 4656 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 set thread context of 5016 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
vbc.exe746d8f96f8153a4e45bb998ec.exepid process 5016 vbc.exe 5016 vbc.exe 2552 746d8f96f8153a4e45bb998ec.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
746d8f96f8153a4e45bb998ec.exedescription pid process Token: SeDebugPrivilege 2552 746d8f96f8153a4e45bb998ec.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
746d8f96f8153a4e45bb998ec.exepid process 2552 746d8f96f8153a4e45bb998ec.exe -
Suspicious use of WriteProcessMemory 18 IoCs
Processes:
746d8f96f8153a4e45bb998ec.exedescription pid process target process PID 2552 wrote to memory of 4656 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 4656 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 4656 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 4656 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 4656 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 4656 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 4656 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 4656 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 4656 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 5016 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 5016 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 5016 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 5016 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 5016 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 5016 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 5016 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 5016 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2552 wrote to memory of 5016 2552 746d8f96f8153a4e45bb998ec.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\746d8f96f8153a4e45bb998ec.exe"C:\Users\Admin\AppData\Local\Temp\746d8f96f8153a4e45bb998ec.exe"1⤵
- 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
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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"2⤵
- 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"2⤵
- 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/2552-144-0x0000000000D10000-0x0000000000D20000-memory.dmpFilesize
64KB
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memory/2552-136-0x0000000000D10000-0x0000000000D20000-memory.dmpFilesize
64KB
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memory/2552-133-0x0000000000D10000-0x0000000000D20000-memory.dmpFilesize
64KB
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memory/2552-145-0x0000000000D10000-0x0000000000D20000-memory.dmpFilesize
64KB
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memory/4656-141-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/4656-143-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/4656-142-0x0000000000420000-0x00000000004E9000-memory.dmpFilesize
804KB
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memory/4656-139-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/5016-146-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/5016-148-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/5016-152-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/5016-156-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB