Analysis
- max time kernel
129s - max time network
113s - platform
windows10_x64 - resource
win10v20210408 - submitted
15/07/2021, 12:19
General
- Target TEKLİF.pdf_________________________________________.exe
- Size 38.0MB
- Sample210715-2hsjlewdg2
- SHA256 778d492050c8870a1ac62d42f7b06aeaab1a5d044c0c52d0d2296c0669e4e34a
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
serv-10708.handsonwebhosting.com
-
Port
587
-
Username
-
Password
icui4cu2@@
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Contains code to disable Windows Defender 1 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
- AgentTesla Payload 3 IoCs
- Drops file in Drivers directory 1 IoCs
- 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.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\TEKLİF.pdf_________________________________________.exe"C:\Users\Admin\AppData\Local\Temp\TEKLİF.pdf_________________________________________.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\TEKLİF.pdf_________________________________________.exe"{path}"2⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/516-121-0x0000000006E20000-0x0000000006E21000-memory.dmp
memory/516-123-0x0000000006610000-0x0000000006666000-memory.dmp
memory/516-118-0x0000000004A20000-0x0000000004F1E000-memory.dmp
memory/516-119-0x00000000049C0000-0x00000000049C1000-memory.dmp
memory/516-120-0x0000000004C00000-0x0000000004C02000-memory.dmp
memory/516-114-0x0000000000100000-0x0000000000101000-memory.dmp
memory/516-122-0x0000000006D80000-0x0000000006E10000-memory.dmp
memory/516-117-0x0000000004A20000-0x0000000004A21000-memory.dmp
memory/516-116-0x0000000004F20000-0x0000000004F21000-memory.dmp
memory/1980-124-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1980-131-0x0000000005240000-0x000000000573E000-memory.dmp
memory/1980-132-0x00000000053D0000-0x00000000053D1000-memory.dmp
memory/1980-133-0x0000000005FA0000-0x0000000005FA1000-memory.dmp