Analysis
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max time kernel
152s -
max time network
139s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
22/02/2022, 19:42
Static task
static1
Behavioral task
behavioral1
Sample
0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe
Resource
win10v2004-en-20220113
General
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Target
0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe
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Size
1.1MB
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MD5
83dfaa37ff9d3836afcb41d3c1d0c975
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SHA1
32ab69b9e9744fcd096b4bf9286cd17b9b5a08df
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SHA256
0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e
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SHA512
2a90c6dad473c4d3eb48227c580e28abb3c77d4bcaa9833fee29e03a00d61d90e12c7bdde60fdcc5ed843243be2f1a9088e966992108e4197b8ddf03dd698b90
Malware Config
Extracted
Protocol: smtp- Host:
smtps.bol.com.br - Port:
587 - Username:
[email protected] - Password:
Michelrocha1@
Signatures
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NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/1692-68-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1692-72-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral1/memory/1648-73-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1648-75-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 4 IoCs
resource yara_rule behavioral1/memory/1692-68-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1692-72-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1648-73-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1648-75-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Executes dropped EXE 1 IoCs
pid Process 1256 Windows Update.exe -
Deletes itself 1 IoCs
pid Process 1256 Windows Update.exe -
Loads dropped DLL 1 IoCs
pid Process 848 0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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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-1-5-21-3846991908-3261386348-1409841751-1000\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-1-5-21-3846991908-3261386348-1409841751-1000\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 1256 set thread context of 1692 1256 Windows Update.exe 29 PID 1256 set thread context of 1648 1256 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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description ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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 Windows Update.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436 Windows Update.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1256 Windows Update.exe 1256 Windows Update.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1256 Windows Update.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1256 Windows Update.exe -
Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 848 wrote to memory of 1256 848 0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe 27 PID 848 wrote to memory of 1256 848 0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe 27 PID 848 wrote to memory of 1256 848 0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe 27 PID 848 wrote to memory of 1256 848 0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe 27 PID 848 wrote to memory of 1256 848 0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe 27 PID 848 wrote to memory of 1256 848 0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe 27 PID 848 wrote to memory of 1256 848 0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe 27 PID 1256 wrote to memory of 1692 1256 Windows Update.exe 29 PID 1256 wrote to memory of 1692 1256 Windows Update.exe 29 PID 1256 wrote to memory of 1692 1256 Windows Update.exe 29 PID 1256 wrote to memory of 1692 1256 Windows Update.exe 29 PID 1256 wrote to memory of 1692 1256 Windows Update.exe 29 PID 1256 wrote to memory of 1692 1256 Windows Update.exe 29 PID 1256 wrote to memory of 1692 1256 Windows Update.exe 29 PID 1256 wrote to memory of 1692 1256 Windows Update.exe 29 PID 1256 wrote to memory of 1692 1256 Windows Update.exe 29 PID 1256 wrote to memory of 1692 1256 Windows Update.exe 29 PID 1256 wrote to memory of 1648 1256 Windows Update.exe 30 PID 1256 wrote to memory of 1648 1256 Windows Update.exe 30 PID 1256 wrote to memory of 1648 1256 Windows Update.exe 30 PID 1256 wrote to memory of 1648 1256 Windows Update.exe 30 PID 1256 wrote to memory of 1648 1256 Windows Update.exe 30 PID 1256 wrote to memory of 1648 1256 Windows Update.exe 30 PID 1256 wrote to memory of 1648 1256 Windows Update.exe 30 PID 1256 wrote to memory of 1648 1256 Windows Update.exe 30 PID 1256 wrote to memory of 1648 1256 Windows Update.exe 30 PID 1256 wrote to memory of 1648 1256 Windows Update.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe"C:\Users\Admin\AppData\Local\Temp\0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:848 -
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
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1256 -
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:1692
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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:1648
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