Analysis
- max time kernel
94s - max time network
146s - platform
windows10_x64 - resource
win10v20210408 - submitted
31/08/2021, 05:21
General
- Target Purchase Order No 210598.pdf.exe
- Size 671KB
- Sample210831-dvxvdscqkn
- SHA256 c69aa221ec1df4acc67aac0fd7a1e7dcefa181f496b21839576343fd7fa8fb8d
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.efeforklift.com.tr
-
Port
587
-
Username
-
Password
Aminem11*
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
mail.efeforklift.com.tr
-
Port
587
-
Username
-
Password
Aminem11*
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 8 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Purchase Order No 210598.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order No 210598.pdf.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\nDJImRhCa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAAC7.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Purchase Order No 210598.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order No 210598.pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/900-121-0x00000000061A0000-0x00000000061F5000-memory.dmp
memory/900-116-0x0000000005350000-0x0000000005351000-memory.dmp
memory/900-117-0x0000000005580000-0x0000000005581000-memory.dmp
memory/900-118-0x0000000005310000-0x0000000005326000-memory.dmp
memory/900-119-0x0000000005B20000-0x0000000005B21000-memory.dmp
memory/900-120-0x0000000005620000-0x0000000005621000-memory.dmp
memory/900-122-0x00000000086F0000-0x0000000008719000-memory.dmp
memory/900-114-0x00000000009B0000-0x00000000009B1000-memory.dmp
memory/2088-131-0x0000000006520000-0x0000000006521000-memory.dmp
memory/2088-124-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2088-130-0x00000000052D0000-0x00000000057CE000-memory.dmp
memory/2088-133-0x00000000067A0000-0x00000000067A1000-memory.dmp