Analysis
- max time kernel
144s - max time network
148s - platform
windows7_x64 - resource
win7-en-20210920 - submitted
29/09/2021, 12:54
Static task
static1
Behavioral task
behavioral1
Sample
PO098765KJHGHJ.exe
Resource
win7-en-20210920
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
PO098765KJHGHJ.exe
Resource
win10v20210408
0 signatures
0 seconds
General
- Target PO098765KJHGHJ.exe
- Size 720KB
- Sample210929-p4832afaa4
- SHA256 d0f903248ef8d04bc3f51ec058656ffedc3c72beaf65c9142f4f1978c55829d9
- MD5 b9660b8b34d42c61b29c8ef48a0ce5d5
- SHA1 198a8d25f749353b24d5d1904e4f9b2eacf3da56
- SHA512 6404bab4b0d3c936e06305aeb087dafc13202af81a6a359b06f0089127b16861f323f0439532937509fcdfd5c8fb23588b26eb0d1dd1bad72eefad55ee10201f
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
agenttesla
C2
-
https://api.telegram.org/bot1335107831:AAGZPoo67JukV78LJI16BeQqy3whx-zI59g/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
resource yara_rule behavioral1/memory/924-61-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/924-62-0x000000000043776E-mapping.dmp family_agenttesla behavioral1/memory/924-63-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla - Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\hZYWq = "C:\\Users\\Admin\\AppData\\Roaming\\hZYWq\\hZYWq.exe" RegSvcs.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1128 set thread context of 924 1128 PO098765KJHGHJ.exe 27 - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1128 PO098765KJHGHJ.exe 1128 PO098765KJHGHJ.exe 924 RegSvcs.exe 924 RegSvcs.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1128 PO098765KJHGHJ.exe Token: SeDebugPrivilege 924 RegSvcs.exe - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1128 wrote to memory of 924 1128 PO098765KJHGHJ.exe 27 PID 1128 wrote to memory of 924 1128 PO098765KJHGHJ.exe 27 PID 1128 wrote to memory of 924 1128 PO098765KJHGHJ.exe 27 PID 1128 wrote to memory of 924 1128 PO098765KJHGHJ.exe 27 PID 1128 wrote to memory of 924 1128 PO098765KJHGHJ.exe 27 PID 1128 wrote to memory of 924 1128 PO098765KJHGHJ.exe 27 PID 1128 wrote to memory of 924 1128 PO098765KJHGHJ.exe 27 PID 1128 wrote to memory of 924 1128 PO098765KJHGHJ.exe 27 PID 1128 wrote to memory of 924 1128 PO098765KJHGHJ.exe 27 PID 1128 wrote to memory of 924 1128 PO098765KJHGHJ.exe 27 PID 1128 wrote to memory of 924 1128 PO098765KJHGHJ.exe 27 PID 1128 wrote to memory of 924 1128 PO098765KJHGHJ.exe 27
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO098765KJHGHJ.exe"C:\Users\Admin\AppData\Local\Temp\PO098765KJHGHJ.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1128 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:924
-