Analysis
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max time kernel
148s -
max time network
141s -
platform
windows7_x64 -
resource
win7-20230703-en -
resource tags
arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-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 5 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/2104-59-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/2104-61-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/2104-63-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/2320-62-0x0000000000B60000-0x0000000000BA0000-memory.dmp MailPassView behavioral1/memory/2104-65-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 4 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral1/memory/1100-66-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1100-68-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1100-69-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1100-77-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 9 IoCs
Processes:
resource yara_rule behavioral1/memory/2104-59-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/2104-61-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/2104-63-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/2320-62-0x0000000000B60000-0x0000000000BA0000-memory.dmp Nirsoft behavioral1/memory/2104-65-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1100-66-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1100-68-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1100-69-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1100-77-0x0000000000400000-0x0000000000458000-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-1-5-21-3891603265-141683679-4067940827-1000\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-1-5-21-3891603265-141683679-4067940827-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" 746d8f96f8153a4e45bb998ec.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 3 whatismyipaddress.com 5 whatismyipaddress.com 6 whatismyipaddress.com -
Suspicious use of SetThreadContext 2 IoCs
Processes:
746d8f96f8153a4e45bb998ec.exedescription pid process target process PID 2320 set thread context of 2104 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 set thread context of 1100 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
vbc.exe746d8f96f8153a4e45bb998ec.exepid process 1100 vbc.exe 2320 746d8f96f8153a4e45bb998ec.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
746d8f96f8153a4e45bb998ec.exedescription pid process Token: SeDebugPrivilege 2320 746d8f96f8153a4e45bb998ec.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
746d8f96f8153a4e45bb998ec.exepid process 2320 746d8f96f8153a4e45bb998ec.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
746d8f96f8153a4e45bb998ec.exedescription pid process target process PID 2320 wrote to memory of 2104 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 2104 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 2104 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 2104 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 2104 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 2104 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 2104 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 2104 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 2104 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 2104 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 1100 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 1100 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 1100 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 1100 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 1100 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 1100 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 1100 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 1100 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 1100 2320 746d8f96f8153a4e45bb998ec.exe vbc.exe PID 2320 wrote to memory of 1100 2320 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
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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memory/1100-66-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1100-77-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1100-69-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1100-68-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/2104-63-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/2104-65-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/2104-61-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/2104-59-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/2320-64-0x0000000000B60000-0x0000000000BA0000-memory.dmpFilesize
256KB
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memory/2320-62-0x0000000000B60000-0x0000000000BA0000-memory.dmpFilesize
256KB
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memory/2320-54-0x0000000000B60000-0x0000000000BA0000-memory.dmpFilesize
256KB
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memory/2320-70-0x0000000000B60000-0x0000000000BA0000-memory.dmpFilesize
256KB