Analysis
- max time kernel
90s - max time network
75s - platform
windows7_x64 - resource
win7v20210408 - 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$@4
Extracted
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snakekeylogger
-
Protocol
smtp
-
Host
mail.aldoyapi.com.tr
-
Port
587
-
Username
-
Password
xMtut(YtH$@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 13 IoCs
Processes
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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
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UlKEhd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp311E.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/360-60-0x0000000000120000-0x0000000000121000-memory.dmp
memory/360-62-0x0000000004DB0000-0x0000000004DB1000-memory.dmp
memory/360-63-0x0000000000550000-0x0000000000566000-memory.dmp
memory/360-64-0x00000000047D0000-0x0000000004824000-memory.dmp
memory/360-65-0x00000000007C0000-0x00000000007E2000-memory.dmp
memory/672-67-0x0000000000400000-0x0000000000426000-memory.dmp
memory/672-69-0x0000000000400000-0x0000000000426000-memory.dmp
memory/672-71-0x0000000004A90000-0x0000000004A91000-memory.dmp