Analysis
- max time kernel
53s - max time network
111s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:08
Static task
static1
Behavioral task
behavioral1
Sample
KSK P.O. #4209.exe
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
KSK P.O. #4209.exe
Resource
win10v20201028
0 signatures
0 seconds
General
- Target KSK P.O. #4209.exe
- Size 502KB
- Sample201109-jjparebhee
- SHA256 0c5dc88bb682a7d7a2a94c0a5da41ee4133888d2d67c1ace65dce27561dadad2
- MD5 e1181cf8c4a460c6ef0b32964e936003
- SHA1 d2173ae9d564a70c410a600068252287d846bc00
- SHA512 0dbf532d5f4439db6dbef8ed8f7f6672be6a4473a4020407e4ea244ee41b05760124ea934539aca72f39fd650f956d4582a7d5e9e094b5260a1d2c1275b7a7ed
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
smtp.ociii.net
-
Port
587
-
Username
-
Password
ojuks4421132
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/3356-4-0x0000000000400000-0x000000000044E000-memory.dmp family_agenttesla behavioral2/memory/3356-5-0x000000000044804E-mapping.dmp family_agenttesla - 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.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\sHRjOOtA = "C:\\Users\\Admin\\AppData\\Roaming\\MZYBBxZ\\BDEwc.exe" KSK P.O. #4209.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4004 set thread context of 3356 4004 KSK P.O. #4209.exe 76 - 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.
pid Process 2400 schtasks.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 4004 KSK P.O. #4209.exe 3356 KSK P.O. #4209.exe 3356 KSK P.O. #4209.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4004 KSK P.O. #4209.exe Token: SeDebugPrivilege 3356 KSK P.O. #4209.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4004 wrote to memory of 2400 4004 KSK P.O. #4209.exe 74 PID 4004 wrote to memory of 2400 4004 KSK P.O. #4209.exe 74 PID 4004 wrote to memory of 2400 4004 KSK P.O. #4209.exe 74 PID 4004 wrote to memory of 3356 4004 KSK P.O. #4209.exe 76 PID 4004 wrote to memory of 3356 4004 KSK P.O. #4209.exe 76 PID 4004 wrote to memory of 3356 4004 KSK P.O. #4209.exe 76 PID 4004 wrote to memory of 3356 4004 KSK P.O. #4209.exe 76 PID 4004 wrote to memory of 3356 4004 KSK P.O. #4209.exe 76 PID 4004 wrote to memory of 3356 4004 KSK P.O. #4209.exe 76 PID 4004 wrote to memory of 3356 4004 KSK P.O. #4209.exe 76 PID 4004 wrote to memory of 3356 4004 KSK P.O. #4209.exe 76
Processes
-
C:\Users\Admin\AppData\Local\Temp\KSK P.O. #4209.exe"C:\Users\Admin\AppData\Local\Temp\KSK P.O. #4209.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4004 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LyVTDOmwgF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp39E2.tmp"2⤵
- Creates scheduled task(s)
PID:2400
-
-
C:\Users\Admin\AppData\Local\Temp\KSK P.O. #4209.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3356
-