Analysis Overview
SHA256
a3608a51db9df14c42f8c6e37ac49969de70b4be0862d82b5823c00aed395f9d
Threat Level: Known bad
The file a3608a51db9df14c42f8c6e37ac49969de70b4be0862d82b5823c00aed395f9d.exe was found to be: Known bad.
Malicious Activity Summary
Vidar
Stealc
Detect Vidar Stealer
Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Detects executables containing potential Windows Defender anti-emulation checks
Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
Detect binaries embedding considerable number of MFA browser extension IDs.
Detects Windows executables referencing non-Windows User-Agents
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Downloads MZ/PE file
Checks computer location settings
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Checks installed software on the system
Accesses cryptocurrency files/wallets, possible credential harvesting
Suspicious use of SetThreadContext
Program crash
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
Suspicious use of WriteProcessMemory
Delays execution with timeout.exe
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-08 01:23
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-08 01:23
Reported
2024-06-08 01:29
Platform
win7-20240419-en
Max time kernel
118s
Max time network
123s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\a3608a51db9df14c42f8c6e37ac49969de70b4be0862d82b5823c00aed395f9d.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3028 wrote to memory of 1912 | N/A | C:\Users\Admin\AppData\Local\Temp\a3608a51db9df14c42f8c6e37ac49969de70b4be0862d82b5823c00aed395f9d.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 3028 wrote to memory of 1912 | N/A | C:\Users\Admin\AppData\Local\Temp\a3608a51db9df14c42f8c6e37ac49969de70b4be0862d82b5823c00aed395f9d.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 3028 wrote to memory of 1912 | N/A | C:\Users\Admin\AppData\Local\Temp\a3608a51db9df14c42f8c6e37ac49969de70b4be0862d82b5823c00aed395f9d.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 3028 wrote to memory of 1912 | N/A | C:\Users\Admin\AppData\Local\Temp\a3608a51db9df14c42f8c6e37ac49969de70b4be0862d82b5823c00aed395f9d.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a3608a51db9df14c42f8c6e37ac49969de70b4be0862d82b5823c00aed395f9d.exe
"C:\Users\Admin\AppData\Local\Temp\a3608a51db9df14c42f8c6e37ac49969de70b4be0862d82b5823c00aed395f9d.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 84
Network
Files
memory/3028-0-0x0000000000020000-0x0000000000021000-memory.dmp
memory/3028-1-0x0000000000020000-0x0000000000021000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-08 01:23
Reported
2024-06-08 01:29
Platform
win10v2004-20240508-en
Max time kernel
148s
Max time network
150s
Command Line
Signatures
Detect Vidar Stealer
| Description | Indicator | Process | Target |
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Stealc
Vidar
Detect binaries embedding considerable number of MFA browser extension IDs.
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Detects Windows executables referencing non-Windows User-Agents
| Description | Indicator | Process | Target |
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Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
| Description | Indicator | Process | Target |
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Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
| Description | Indicator | Process | Target |
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Detects executables containing potential Windows Defender anti-emulation checks
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Downloads MZ/PE file
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4888 set thread context of 1976 | N/A | C:\Users\Admin\AppData\Local\Temp\a3608a51db9df14c42f8c6e37ac49969de70b4be0862d82b5823c00aed395f9d.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a3608a51db9df14c42f8c6e37ac49969de70b4be0862d82b5823c00aed395f9d.exe
"C:\Users\Admin\AppData\Local\Temp\a3608a51db9df14c42f8c6e37ac49969de70b4be0862d82b5823c00aed395f9d.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\JEBGCBAFCGDA" & exit
C:\Windows\SysWOW64\timeout.exe
timeout /t 10
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | t.me | udp |
| NL | 149.154.167.99:443 | t.me | tcp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.167.154.149.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.249.124.192.in-addr.arpa | udp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| US | 8.8.8.8:53 | 18.190.202.116.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 203.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.71.105.51.in-addr.arpa | udp |
Files
memory/4888-0-0x0000000001090000-0x0000000001091000-memory.dmp
memory/4888-1-0x0000000001090000-0x0000000001091000-memory.dmp
memory/4888-3-0x0000000001090000-0x0000000001091000-memory.dmp
memory/1976-2-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1976-7-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1976-5-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1976-21-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1976-22-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1976-24-0x00000000192E0000-0x000000001953F000-memory.dmp
memory/1976-39-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1976-40-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1976-56-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1976-57-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1976-71-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1976-72-0x0000000000400000-0x0000000000648000-memory.dmp