Analysis
- max time kernel
94s - max time network
79s - platform
windows10_x64 - resource
win10v200722 - submitted
12/08/2020, 13:13
Static task
static1
Behavioral task
behavioral1
Sample
invoice.exe
Resource
win7
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
invoice.exe
Resource
win10v200722
0 signatures
0 seconds
General
- Target invoice.exe
- Size 717KB
- Sample200812-ap8hpfs8vj
- SHA256 e2cbded6f889f93a08c2889a5c93385b3b58a569169c17cf08fc667fa8869021
- MD5 baab32134f7437976951e908d5b70f6a
- SHA1 71558fed91f3352d261b07b9985358ebc58e5756
- SHA512 d009b2d683b29ac8374cad52ec9596d8f52eb12b695a46a6b9065f51c62954113e4f8d034a67bc9d1f23c3ca0b168e1446f5895bbfc7e41f87f95beab7896c17
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
mail.tiig-eg.com
-
Port
587
-
Username
-
Password
servicelorch
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/2344-10-0x0000000000400000-0x000000000045A000-memory.dmp family_agenttesla behavioral2/memory/2344-11-0x0000000000454B5E-mapping.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-1-5-21-2168186643-810464528-1121082739-1000\Software\Microsoft\Windows\CurrentVersion\Run\sRfDVrD = "C:\\Users\\Admin\\AppData\\Roaming\\sRfDVrD\\sRfDVrD.exe" RegSvcs.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3608 set thread context of 2344 3608 invoice.exe 69 - Modifies registry key 1 TTPs 1 IoCs
pid Process 3396 REG.exe - Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 3608 invoice.exe 3608 invoice.exe 3608 invoice.exe 2344 RegSvcs.exe 2344 RegSvcs.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3608 invoice.exe Token: SeDebugPrivilege 2344 RegSvcs.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3608 wrote to memory of 2344 3608 invoice.exe 69 PID 3608 wrote to memory of 2344 3608 invoice.exe 69 PID 3608 wrote to memory of 2344 3608 invoice.exe 69 PID 3608 wrote to memory of 2344 3608 invoice.exe 69 PID 3608 wrote to memory of 2344 3608 invoice.exe 69 PID 3608 wrote to memory of 2344 3608 invoice.exe 69 PID 3608 wrote to memory of 2344 3608 invoice.exe 69 PID 3608 wrote to memory of 2344 3608 invoice.exe 69 PID 2344 wrote to memory of 3396 2344 RegSvcs.exe 74 PID 2344 wrote to memory of 3396 2344 RegSvcs.exe 74 PID 2344 wrote to memory of 3396 2344 RegSvcs.exe 74
Processes
-
C:\Users\Admin\AppData\Local\Temp\invoice.exe"C:\Users\Admin\AppData\Local\Temp\invoice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3608 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2344 -
C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f3⤵
- Modifies registry key
PID:3396
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