Analysis
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max time kernel
145s -
max time network
150s -
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 09:38
Static task
static1
Behavioral task
behavioral1
Sample
746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe
Resource
win7-20230703-en
Behavioral task
behavioral2
Sample
746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe
Resource
win10v2004-20230703-en
General
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Target
746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.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:
[email protected] - 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/2664-139-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2664-141-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2664-143-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 4 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/1200-146-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/1200-148-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/1200-152-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/1200-156-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 7 IoCs
Processes:
resource yara_rule behavioral2/memory/2664-139-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2664-141-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2664-143-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/1200-146-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/1200-148-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/1200-152-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/1200-156-0x0000000000400000-0x0000000000458000-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-1-5-21-1420546310-613437930-2990200354-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1420546310-613437930-2990200354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.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 9 whatismyipaddress.com 11 whatismyipaddress.com -
Suspicious use of SetThreadContext 2 IoCs
Processes:
746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exedescription pid process target process PID 4992 set thread context of 2664 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 set thread context of 1200 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
vbc.exe746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exepid process 1200 vbc.exe 1200 vbc.exe 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exedescription pid process Token: SeDebugPrivilege 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exepid process 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe -
Suspicious use of WriteProcessMemory 18 IoCs
Processes:
746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exedescription pid process target process PID 4992 wrote to memory of 2664 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 2664 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 2664 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 2664 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 2664 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 2664 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 2664 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 2664 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 2664 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 1200 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 1200 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 1200 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 1200 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 1200 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 1200 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 1200 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 1200 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe PID 4992 wrote to memory of 1200 4992 746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.exe"C:\Users\Admin\AppData\Local\Temp\746d8f96f8153a4e45bb998ec885c82ffa1b4aaa18eb1381db2a2ed851e876cc.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/1200-146-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1200-155-0x0000000000460000-0x0000000000529000-memory.dmpFilesize
804KB
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memory/1200-156-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1200-152-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1200-148-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/2664-141-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/2664-143-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/2664-139-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/4992-145-0x0000000001120000-0x0000000001130000-memory.dmpFilesize
64KB
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memory/4992-144-0x0000000001120000-0x0000000001130000-memory.dmpFilesize
64KB
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memory/4992-133-0x0000000001120000-0x0000000001130000-memory.dmpFilesize
64KB
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memory/4992-136-0x0000000001120000-0x0000000001130000-memory.dmpFilesize
64KB