Analysis
- max time kernel
148s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
09/07/2024, 23:41
General
- Target 76c3b1e7151a1048d4a802f857c3efc2dde24a73698111bcc1dc9907faabc9b8_payload.exe
- Size 482KB
- Sample240709-3pd61ashjq
- SHA256 e7f5caf7fb9fc71cc2b2ff61def36c4a6102608abbcacb875d955eea0d639874
Malware Config
Signatures
- NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
- Nirsoft 8 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 4 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\76c3b1e7151a1048d4a802f857c3efc2dde24a73698111bcc1dc9907faabc9b8_payload.exe"C:\Users\Admin\AppData\Local\Temp\76c3b1e7151a1048d4a802f857c3efc2dde24a73698111bcc1dc9907faabc9b8_payload.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\ProgramData\Remcos\remcos.exeC:\ProgramData\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\sqsdbukzqfgiqptnwlpzwiblr"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\ProgramData\Remcos\remcos.exeC:\ProgramData\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\ctgvcnutenyvavhrnvbahmwcrypqh"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook accounts
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C:\ProgramData\Remcos\remcos.exeC:\ProgramData\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\mnlgdxfvzvqadjvvxgockzqlafgzaqar"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
remcos.exe
sqsdbukzqfgiqptnwlpzwiblr
memory/1996-23-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1996-25-0x0000000000430000-0x00000000004F9000-memory.dmp
memory/1996-18-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1996-21-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1996-27-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2164-36-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2164-24-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2164-29-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2164-16-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2164-9-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4044-39-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4044-43-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4044-42-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4356-22-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4356-28-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4356-17-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4356-11-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4356-30-0x0000000000400000-0x0000000000462000-memory.dmp