Analysis
- max time kernel
121s - max time network
121s - platform
windows10_x64 - resource
win10-en-20211014 - submitted
23/11/2021, 08:26
General
- Target YPJ-76577.exe
- Size 437KB
- Sample211123-kbvygscff2
- SHA256 4abdf6f6ab56cd4035b7773b21618076bac8e095a2358c8d7efd5a5acf7806cf
Malware Config
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
smtp.yandex.ru
-
Port
587
-
Username
-
Password
Ilovegod121
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Loads dropped DLL 1 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
- Looks up external IP address via web service 3 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 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\YPJ-76577.exe"C:\Users\Admin\AppData\Local\Temp\YPJ-76577.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\YPJ-76577.exe"C:\Users\Admin\AppData\Local\Temp\YPJ-76577.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3400-116-0x0000000000400000-0x0000000000456000-memory.dmp
memory/3400-118-0x0000000000400000-0x0000000000456000-memory.dmp
memory/3400-119-0x00000000022E0000-0x0000000002321000-memory.dmp
memory/3400-122-0x00000000048F2000-0x00000000048F3000-memory.dmp
memory/3400-121-0x00000000048F0000-0x00000000048F1000-memory.dmp
memory/3400-123-0x00000000048F3000-0x00000000048F4000-memory.dmp
memory/3400-124-0x0000000004900000-0x0000000004901000-memory.dmp
memory/3400-125-0x0000000004E00000-0x0000000004E01000-memory.dmp
memory/3400-126-0x00000000048F4000-0x00000000048F5000-memory.dmp
memory/3400-127-0x0000000005A50000-0x0000000005A51000-memory.dmp
memory/3400-128-0x0000000005B40000-0x0000000005B41000-memory.dmp
memory/3400-129-0x0000000005E20000-0x0000000005E21000-memory.dmp