Analysis
- max time kernel
97s - max time network
61s - platform
windows7_x64 - resource
win7v20210408 - submitted
25/06/2021, 21:08
General
- Target Mv KSL Seville agency appointment1.exe
- Size 672KB
- Sample210625-54sslcbema
- SHA256 27fdf4e6c757ef22eb4f0d1abf40a509dcd71bb19349f7f16fe21153c6b4e363
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot1897716112:AAEAtOCkOV8umHBB93Og24bkiIdUKReGK44/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- 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 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Mv KSL Seville agency appointment1.exe"C:\Users\Admin\AppData\Local\Temp\Mv KSL Seville agency appointment1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DrdVPRvownlqZK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD604.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Mv KSL Seville agency appointment1.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1724-59-0x00000000008A0000-0x00000000008A1000-memory.dmp
memory/1724-61-0x0000000004DD0000-0x0000000004DD1000-memory.dmp
memory/1724-62-0x0000000000330000-0x0000000000332000-memory.dmp
memory/1724-63-0x0000000005EE0000-0x0000000005F5E000-memory.dmp
memory/1724-64-0x0000000000810000-0x0000000000848000-memory.dmp
memory/1748-67-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1748-69-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1748-71-0x0000000004CA0000-0x0000000004CA1000-memory.dmp