Analysis
- max time kernel
115s - max time network
112s - platform
windows10_x64 - resource
win10v20210408 - submitted
19/07/2021, 13:12
General
- Target REMITANCE 103_03435_210408_BSA_.exe
- Size 941KB
- Sample210719-ba18vnsa2j
- SHA256 4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.gilanis.co.ke
-
Port
587
-
Username
-
Password
Mullardodo@#
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- Drops file in Drivers directory 1 IoCs
- Adds Run key to start application 2 TTPs 1 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\REMITANCE 103_03435_210408_BSA_.exe"C:\Users\Admin\AppData\Local\Temp\REMITANCE 103_03435_210408_BSA_.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\qqUYUQOSj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8C14.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\REMITANCE 103_03435_210408_BSA_.exe"C:\Users\Admin\AppData\Local\Temp\REMITANCE 103_03435_210408_BSA_.exe"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/632-123-0x0000000007000000-0x000000000703C000-memory.dmp
memory/632-118-0x0000000005260000-0x0000000005261000-memory.dmp
memory/632-119-0x00000000054C0000-0x00000000054C1000-memory.dmp
memory/632-120-0x0000000005200000-0x00000000056FE000-memory.dmp
memory/632-121-0x00000000056B0000-0x00000000056CB000-memory.dmp
memory/632-122-0x0000000006F80000-0x0000000007000000-memory.dmp
memory/632-114-0x0000000000920000-0x0000000000921000-memory.dmp
memory/632-116-0x0000000005700000-0x0000000005701000-memory.dmp
memory/632-117-0x00000000052A0000-0x00000000052A1000-memory.dmp
memory/1820-126-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1820-133-0x0000000005240000-0x000000000573E000-memory.dmp
memory/1820-134-0x0000000005720000-0x0000000005721000-memory.dmp
memory/1820-135-0x0000000005FB0000-0x0000000005FB1000-memory.dmp