Analysis
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max time kernel
4294195s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20220223-en -
submitted
10/03/2022, 04:30
Static task
static1
Behavioral task
behavioral1
Sample
663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe
Resource
win7-20220223-en
Behavioral task
behavioral2
Sample
663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe
Resource
win10v2004-en-20220113
General
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Target
663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe
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Size
520KB
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MD5
226c62aab7bab3aca802a22b261f844f
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SHA1
f00002fd6cea1c847d6df67b44846092c25003c5
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SHA256
663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394
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SHA512
1ef359486245bd53b93f91fe34709d7398682123ee373c20439ba42bf5511850d29f418743b9a9992511d6919220d3e2d8f68be5ebec7127073fd31ff10802fc
Malware Config
Extracted
Protocol: smtp- Host:
mail.molinense.com - Port:
587 - Username:
[email protected] - Password:
jhl88899
Signatures
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NirSoft MailPassView 5 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/files/0x0007000000014242-58.dat MailPassView behavioral1/files/0x0007000000014242-59.dat MailPassView behavioral1/files/0x0007000000014242-60.dat MailPassView behavioral1/memory/1764-67-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1764-70-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 5 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral1/files/0x0007000000014242-58.dat WebBrowserPassView behavioral1/files/0x0007000000014242-59.dat WebBrowserPassView behavioral1/files/0x0007000000014242-60.dat WebBrowserPassView behavioral1/memory/1328-71-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1328-74-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 7 IoCs
resource yara_rule behavioral1/files/0x0007000000014242-58.dat Nirsoft behavioral1/files/0x0007000000014242-59.dat Nirsoft behavioral1/files/0x0007000000014242-60.dat Nirsoft behavioral1/memory/1764-67-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1764-70-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1328-71-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1328-74-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Executes dropped EXE 1 IoCs
pid Process 1792 Windows Update.exe -
Deletes itself 1 IoCs
pid Process 1792 Windows Update.exe -
Loads dropped DLL 1 IoCs
pid Process 1692 663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" Windows Update.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.
flow ioc 4 whatismyipaddress.com 6 whatismyipaddress.com 7 whatismyipaddress.com -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1792 set thread context of 1764 1792 Windows Update.exe 29 PID 1792 set thread context of 1328 1792 Windows Update.exe 30 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1792 Windows Update.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1792 Windows Update.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1792 Windows Update.exe -
Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 1692 wrote to memory of 1792 1692 663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe 27 PID 1692 wrote to memory of 1792 1692 663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe 27 PID 1692 wrote to memory of 1792 1692 663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe 27 PID 1692 wrote to memory of 1792 1692 663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe 27 PID 1692 wrote to memory of 1792 1692 663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe 27 PID 1692 wrote to memory of 1792 1692 663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe 27 PID 1692 wrote to memory of 1792 1692 663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe 27 PID 1792 wrote to memory of 1764 1792 Windows Update.exe 29 PID 1792 wrote to memory of 1764 1792 Windows Update.exe 29 PID 1792 wrote to memory of 1764 1792 Windows Update.exe 29 PID 1792 wrote to memory of 1764 1792 Windows Update.exe 29 PID 1792 wrote to memory of 1764 1792 Windows Update.exe 29 PID 1792 wrote to memory of 1764 1792 Windows Update.exe 29 PID 1792 wrote to memory of 1764 1792 Windows Update.exe 29 PID 1792 wrote to memory of 1764 1792 Windows Update.exe 29 PID 1792 wrote to memory of 1764 1792 Windows Update.exe 29 PID 1792 wrote to memory of 1764 1792 Windows Update.exe 29 PID 1792 wrote to memory of 1328 1792 Windows Update.exe 30 PID 1792 wrote to memory of 1328 1792 Windows Update.exe 30 PID 1792 wrote to memory of 1328 1792 Windows Update.exe 30 PID 1792 wrote to memory of 1328 1792 Windows Update.exe 30 PID 1792 wrote to memory of 1328 1792 Windows Update.exe 30 PID 1792 wrote to memory of 1328 1792 Windows Update.exe 30 PID 1792 wrote to memory of 1328 1792 Windows Update.exe 30 PID 1792 wrote to memory of 1328 1792 Windows Update.exe 30 PID 1792 wrote to memory of 1328 1792 Windows Update.exe 30 PID 1792 wrote to memory of 1328 1792 Windows Update.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe"C:\Users\Admin\AppData\Local\Temp\663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1692 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"2⤵
- Executes dropped EXE
- Deletes itself
- 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
PID:1792 -
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:1764
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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⤵PID:1328
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