Analysis
- max time kernel
103s - max time network
107s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
24/03/2023, 06:36
General
- Target 5217497644ba5d8567c0907af0d6d8af.exe
- Size 276KB
- Sample230324-hcxscscf82
- SHA256 aa6970ef8a146792e07218ad71bb318dc32a1feda9a4f4f3da55365f6bfcd25d
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 4 IoCs
- Executes dropped EXE 2 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\5217497644ba5d8567c0907af0d6d8af.exe"C:\Users\Admin\AppData\Local\Temp\5217497644ba5d8567c0907af0d6d8af.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\oxqjfdzeqi.exe"C:\Users\Admin\AppData\Local\Temp\oxqjfdzeqi.exe" C:\Users\Admin\AppData\Local\Temp\joehgcgyq.x2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\oxqjfdzeqi.exe"C:\Users\Admin\AppData\Local\Temp\oxqjfdzeqi.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
joehgcgyq.x
oxqjfdzeqi.exe
oxqjfdzeqi.exe
oxqjfdzeqi.exe
rfxnwhnhxx.dan
memory/224-145-0x0000000001300000-0x0000000001302000-memory.dmp
memory/5048-149-0x0000000005730000-0x00000000057CC000-memory.dmp
memory/5048-154-0x0000000005720000-0x0000000005730000-memory.dmp
memory/5048-146-0x0000000000400000-0x0000000000437000-memory.dmp
memory/5048-148-0x0000000005CE0000-0x0000000006284000-memory.dmp
memory/5048-142-0x0000000000400000-0x0000000000437000-memory.dmp
memory/5048-150-0x0000000005720000-0x0000000005730000-memory.dmp
memory/5048-151-0x0000000000400000-0x0000000000437000-memory.dmp
memory/5048-152-0x0000000005720000-0x0000000005730000-memory.dmp
memory/5048-153-0x0000000005720000-0x0000000005730000-memory.dmp
memory/5048-144-0x0000000000400000-0x0000000000437000-memory.dmp
memory/5048-155-0x00000000069F0000-0x0000000006BB2000-memory.dmp
memory/5048-156-0x00000000068C0000-0x0000000006952000-memory.dmp
memory/5048-157-0x0000000006870000-0x000000000687A000-memory.dmp
memory/5048-158-0x0000000005720000-0x0000000005730000-memory.dmp
memory/5048-159-0x0000000005720000-0x0000000005730000-memory.dmp
memory/5048-160-0x0000000005720000-0x0000000005730000-memory.dmp
memory/5048-161-0x0000000005720000-0x0000000005730000-memory.dmp