Analysis
- max time kernel
140s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
23/06/2022, 12:31
Static task
static1
Behavioral task
behavioral1
Sample
UPDATED SOA.exe
Resource
win7-20220414-en
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
UPDATED SOA.exe
Resource
win10v2004-20220414-en
0 signatures
0 seconds
General
- Target UPDATED SOA.exe
- Size 878KB
- Sample220623-pp388schhk
- SHA256 51570858c6344222397c07cdca34251409d3f50c726024426fa1afee623d4189
- MD5 9712bab95cc28324a340f2dd2615565a
- SHA1 5af6154a9d1b3dcf5a7bc32ae27a71270e61c56d
- SHA512 4feec9f6b9130a63282de96f50196e636370b3dd22bfafcb0c8f6071611f44834ee2370a7acb1006ae5c8441363f83b5204afc5137f9c6feca81df055646bcfe
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
agenttesla
C2
-
https://api.telegram.org/bot5167639867:AAFp5rpwhccJwSR0NNRceLhFKcs218dT21U/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe - Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yqWDN = "C:\\Users\\Admin\\AppData\\Roaming\\yqWDN\\yqWDN.exe" RegSvcs.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1876 set thread context of 2536 1876 UPDATED SOA.exe 90 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2536 RegSvcs.exe 2536 RegSvcs.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2536 RegSvcs.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1876 wrote to memory of 2536 1876 UPDATED SOA.exe 90 PID 1876 wrote to memory of 2536 1876 UPDATED SOA.exe 90 PID 1876 wrote to memory of 2536 1876 UPDATED SOA.exe 90 PID 1876 wrote to memory of 2536 1876 UPDATED SOA.exe 90 PID 1876 wrote to memory of 2536 1876 UPDATED SOA.exe 90 PID 1876 wrote to memory of 2536 1876 UPDATED SOA.exe 90 PID 1876 wrote to memory of 2536 1876 UPDATED SOA.exe 90 PID 1876 wrote to memory of 2536 1876 UPDATED SOA.exe 90 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\UPDATED SOA.exe"C:\Users\Admin\AppData\Local\Temp\UPDATED SOA.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1876 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2536
-