Analysis
- max time kernel
139s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
19/04/2024, 16:47
General
- Target 6cb8076e98be148c3ada15db2cb41466b0a09bd48b33f9d8de54a77a92c8c64b.exe
- Size 66KB
- Sample240419-vap1ysae5t
- SHA256 6cb8076e98be148c3ada15db2cb41466b0a09bd48b33f9d8de54a77a92c8c64b
Malware Config
Extracted
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asyncrat
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| CRACKED BY https://t.me/xworm_v2
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Default
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80.79.7.197:6606
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80.79.7.197:7707
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80.79.7.197:8808
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80.79.7.197:8888
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AsyncMutex_6SI8OkPnk
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delay
3
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install
true
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install_file
Runtime.exe
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install_folder
%AppData%
Extracted
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redline
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02
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209.126.11.251:31618
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Detect ZGRat V1 2 IoCs
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine payload 2 IoCs
- ZGRat
ZGRat is remote access trojan written in C#.
- Async RAT payload 1 IoCs
- NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
- Nirsoft 1 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 28 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\6cb8076e98be148c3ada15db2cb41466b0a09bd48b33f9d8de54a77a92c8c64b.exe"C:\Users\Admin\AppData\Local\Temp\6cb8076e98be148c3ada15db2cb41466b0a09bd48b33f9d8de54a77a92c8c64b.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Runtime" /tr '"C:\Users\Admin\AppData\Roaming\Runtime.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "Runtime" /tr '"C:\Users\Admin\AppData\Roaming\Runtime.exe"'3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp415E.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Roaming\Runtime.exe"C:\Users\Admin\AppData\Roaming\Runtime.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\lhausw.exe"C:\Users\Admin\AppData\Local\Temp\lhausw.exe"4⤵
- 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
lhausw.exe
tmp415E.tmp.bat
Runtime.exe
memory/2372-0-0x0000000000090000-0x00000000000A6000-memory.dmp
memory/2372-1-0x0000000074890000-0x0000000075040000-memory.dmp
memory/2372-2-0x0000000004A50000-0x0000000004A60000-memory.dmp
memory/2372-3-0x0000000004B00000-0x0000000004B9C000-memory.dmp
memory/2372-9-0x0000000074890000-0x0000000075040000-memory.dmp
memory/2848-48-0x0000000007F20000-0x000000000844C000-memory.dmp
memory/2848-49-0x0000000074890000-0x0000000075040000-memory.dmp
memory/2848-39-0x0000000004E00000-0x0000000004E10000-memory.dmp
memory/2848-47-0x0000000007820000-0x00000000079E2000-memory.dmp
memory/2848-46-0x00000000068C0000-0x0000000006910000-memory.dmp
memory/2848-44-0x0000000005020000-0x000000000506C000-memory.dmp
memory/2848-43-0x0000000004FE0000-0x000000000501C000-memory.dmp
memory/2848-42-0x0000000004F80000-0x0000000004F92000-memory.dmp
memory/2848-41-0x0000000005070000-0x000000000517A000-memory.dmp
memory/2848-40-0x0000000005F10000-0x0000000006528000-memory.dmp
memory/2848-51-0x0000000074890000-0x0000000075040000-memory.dmp
memory/2848-37-0x0000000074890000-0x0000000075040000-memory.dmp
memory/2848-38-0x00000000003C0000-0x000000000041C000-memory.dmp
memory/2936-14-0x0000000004C70000-0x0000000004C80000-memory.dmp
memory/2936-25-0x0000000006AC0000-0x0000000006ADE000-memory.dmp
memory/2936-24-0x00000000069B0000-0x00000000069D4000-memory.dmp
memory/2936-23-0x0000000006A20000-0x0000000006A96000-memory.dmp
memory/2936-22-0x0000000004C70000-0x0000000004C80000-memory.dmp
memory/2936-21-0x0000000074890000-0x0000000075040000-memory.dmp
memory/2936-45-0x0000000006C10000-0x0000000006CF0000-memory.dmp
memory/2936-20-0x0000000006130000-0x0000000006196000-memory.dmp
memory/2936-17-0x00000000050A0000-0x00000000050AA000-memory.dmp
memory/2936-16-0x00000000050C0000-0x0000000005152000-memory.dmp
memory/2936-15-0x00000000054D0000-0x0000000005A74000-memory.dmp
memory/2936-13-0x0000000074890000-0x0000000075040000-memory.dmp
memory/2936-52-0x0000000006CF0000-0x0000000006D70000-memory.dmp
memory/2936-53-0x0000000007100000-0x000000000710A000-memory.dmp