Analysis
- max time kernel
138s - max time network
148s - platform
windows10_x64 - resource
win10v20210408 - submitted
03/09/2021, 03:18
General
- Target Transfer.exe
- Size 757KB
- Sample210903-dtmlhafban
- SHA256 82c48c73887a3f56ba4945e9265d9c616658b0f367d99e25d80df35beab5b6d7
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.aninditaeng.net
-
Port
587
-
Username
-
Password
t2weClGi1f~7Elps
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
mail.aninditaeng.net
-
Port
587
-
Username
-
Password
t2weClGi1f~7Elps
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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Transfer.exe"C:\Users\Admin\AppData\Local\Temp\Transfer.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\fZcdKoyV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1C62.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Transfer.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/656-123-0x0000000006640000-0x00000000066BC000-memory.dmp
memory/656-124-0x00000000066C0000-0x00000000066F7000-memory.dmp
memory/656-119-0x0000000007770000-0x0000000007C6E000-memory.dmp
memory/656-120-0x0000000007670000-0x0000000007671000-memory.dmp
memory/656-121-0x0000000007970000-0x0000000007971000-memory.dmp
memory/656-122-0x0000000004BF0000-0x0000000004BFE000-memory.dmp
memory/656-114-0x00000000008C0000-0x00000000008C1000-memory.dmp
memory/656-118-0x0000000007770000-0x0000000007771000-memory.dmp
memory/656-117-0x0000000007C70000-0x0000000007C71000-memory.dmp
memory/656-116-0x00000000076D0000-0x00000000076D1000-memory.dmp
memory/1284-127-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1284-133-0x0000000002750000-0x0000000002751000-memory.dmp
memory/1284-134-0x0000000006230000-0x0000000006231000-memory.dmp