Analysis
- max time kernel
140s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system - submitted
19/04/2024, 15:22
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
FAR.N_2430-240009934.exe
Resource
win7-20231129-en
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
FAR.N_2430-240009934.exe
Resource
win10v2004-20240412-en
11 signatures
150 seconds
General
- Target FAR.N_2430-240009934.exe
- Size 1.1MB
- Sample240419-srv77aff86
- SHA256 fc83bfec2d58dfb71be0fec0c02f69996c5349845dd39c8048b520696003e1fc
- MD5 fc9c091daa95c1cab2b0fe8f5d355a71
- SHA1 b8162cfcf19d65735dadc64a928e755de6515141
- SHA512 692bc80b2f5c444d451a87c7c4f56945c15f8ab693ccb074d415d17d89001c333ae0b4f76f1829be60643c826e54ad0613b08fa561b824f6cfa8fef77b0f8d82
- SSDEEP 24576:GqDEvCTbMWu7rQYlBQcBiT6rprG8a9sRjvV:GTvC/MTQYxsWR7a98jv
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
mail.jmfresh.sg
-
Port
587
-
Username
-
Password
-
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-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\newfile = "C:\\Users\\Admin\\AppData\\Roaming\\newfile\\newfile.exe" RegSvcs.exe - Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 29 ip-api.com - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3112 set thread context of 2284 3112 FAR.N_2430-240009934.exe 87 - Program crash 1 IoCs
pid pid_target Process procid_target 2892 3112 WerFault.exe 83 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2284 RegSvcs.exe 2284 RegSvcs.exe - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3112 FAR.N_2430-240009934.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2284 RegSvcs.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3112 FAR.N_2430-240009934.exe 3112 FAR.N_2430-240009934.exe - Suspicious use of SendNotifyMessage 2 IoCs
pid Process 3112 FAR.N_2430-240009934.exe 3112 FAR.N_2430-240009934.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3112 wrote to memory of 2284 3112 FAR.N_2430-240009934.exe 87 PID 3112 wrote to memory of 2284 3112 FAR.N_2430-240009934.exe 87 PID 3112 wrote to memory of 2284 3112 FAR.N_2430-240009934.exe 87 PID 3112 wrote to memory of 2284 3112 FAR.N_2430-240009934.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\FAR.N_2430-240009934.exe"C:\Users\Admin\AppData\Local\Temp\FAR.N_2430-240009934.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3112 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\FAR.N_2430-240009934.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2284
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 6682⤵
- Program crash
PID:2892
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 192 -p 3112 -ip 31121⤵PID:2384