Analysis
- max time kernel
136s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20231023-en - resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system - submitted
26/10/2023, 16:07
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
pre-alert 2320102740.exe
Resource
win7-20231020-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
pre-alert 2320102740.exe
Resource
win10v2004-20231023-en
7 signatures
150 seconds
General
- Target pre-alert 2320102740.exe
- Size 839KB
- Sample231026-tkmg5sef59
- SHA256 9cd45c2dec3640ea0a345bbe5f21987485e91a2ab5cb605b0f30a741d2cb7b38
- MD5 04ee58cfc7b58f6bf7bb60f8ddf2a8e1
- SHA1 55c4f559c6cbcbcace30078df9f69202c8031a8c
- SHA512 60c793c37554ca268b422cd5accd4437e44d25f934a3c36326e2e13637e06d22f22192aac9870b8c4819d26ea4b2cce0a4398b2e33669ba9440cbb169ffe0c41
- SSDEEP 12288:OUWPT97Yw3rbzLuvOKJvv/Awcx5psdPeIIgVRUo2vpBjVRTaks38q93My7lIkxhG:k1xXm/MDsdVupBLHs3z3f7prxs
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Credentials
-
Protocol
smtp
-
Host
mail.asiaparadisehotel.com
-
Port
587
-
Username
-
Password
^b2ycDldex$@
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
mail.asiaparadisehotel.com
-
Port
587
-
Username
-
Password
^b2ycDldex$@
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TlKsFB = "C:\\Users\\Admin\\AppData\\Roaming\\TlKsFB\\TlKsFB.exe" CasPol.exe - Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 42 api.ipify.org 44 api.ipify.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1328 set thread context of 4744 1328 pre-alert 2320102740.exe 90 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4744 CasPol.exe 4744 CasPol.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4744 CasPol.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1328 wrote to memory of 4744 1328 pre-alert 2320102740.exe 90 PID 1328 wrote to memory of 4744 1328 pre-alert 2320102740.exe 90 PID 1328 wrote to memory of 4744 1328 pre-alert 2320102740.exe 90 PID 1328 wrote to memory of 4744 1328 pre-alert 2320102740.exe 90 PID 1328 wrote to memory of 4744 1328 pre-alert 2320102740.exe 90 PID 1328 wrote to memory of 4744 1328 pre-alert 2320102740.exe 90 PID 1328 wrote to memory of 4744 1328 pre-alert 2320102740.exe 90 PID 1328 wrote to memory of 4744 1328 pre-alert 2320102740.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\pre-alert 2320102740.exe"C:\Users\Admin\AppData\Local\Temp\pre-alert 2320102740.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1328 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4744
-