Analysis
- max time kernel
71s - max time network
147s - platform
windows10_x64 - resource
win10-en - submitted
02/09/2021, 15:18
General
- Target YTHK21082400.exe
- Size 628KB
- Sample210902-splwqsdehm
- SHA256 ee60281010ea332a490b1b125058368bbc0ee3cd29d799eecfdf8d58044ea7c5
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.aldoyapi.com.tr
-
Port
587
-
Username
-
Password
xMtut(YtH$@4
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
mail.aldoyapi.com.tr
-
Port
587
-
Username
-
Password
xMtut(YtH$@4
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- 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.
- 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.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 11 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\YTHK21082400.exe"C:\Users\Admin\AppData\Local\Temp\YTHK21082400.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UlKEhd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB25E.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\YTHK21082400.exe"C:\Users\Admin\AppData\Local\Temp\YTHK21082400.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/4336-134-0x0000000006270000-0x0000000006271000-memory.dmp
memory/4336-132-0x0000000004DE0000-0x00000000052DE000-memory.dmp
memory/4336-126-0x0000000000400000-0x0000000000426000-memory.dmp
memory/4652-119-0x00000000058D0000-0x00000000058D1000-memory.dmp
memory/4652-122-0x0000000007D00000-0x0000000007D01000-memory.dmp
memory/4652-123-0x00000000075B0000-0x0000000007604000-memory.dmp
memory/4652-124-0x0000000007660000-0x0000000007682000-memory.dmp
memory/4652-121-0x0000000005A40000-0x0000000005A56000-memory.dmp
memory/4652-120-0x0000000005900000-0x0000000005DFE000-memory.dmp
memory/4652-115-0x0000000000F30000-0x0000000000F31000-memory.dmp
memory/4652-118-0x0000000005900000-0x0000000005901000-memory.dmp
memory/4652-117-0x0000000005E00000-0x0000000005E01000-memory.dmp