Analysis
- max time kernel
140s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system - submitted
10/07/2023, 07:45
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
invoice.exe
Resource
win7-20230703-en
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
invoice.exe
Resource
win10v2004-20230703-en
9 signatures
150 seconds
General
- Target invoice.exe
- Size 788KB
- Sample230710-jld72shc22
- SHA256 22946068fd1e3e163cd2aa78bd95ac8983fddcbebbd2a7ec07fd2e752caa49d2
- MD5 163956c9fa4350782f7d0344f58c219f
- SHA1 f7b8d64fde920391ac8ee5d29b468d0acf375b3c
- SHA512 1a15c572fbcd81c39c184ba02c9893fe8fe801ff395aef1af7a28e5baa9d72a5427adc851850a722042947b041396b0161ed42620cb6afd912e7af017efd8cd5
- SSDEEP 12288:UGGbbHMmNdpHsKrfd4Icr9I/yVUC/qu8mw83HXP8pI1Iq3r:oRSI/yaOq83XN1I
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
sh003.webhostbox.net
-
Port
587
-
Username
-
Password
bl e ss ing 2 0 2 3
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.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 40 api.ipify.org 41 api.ipify.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 5048 set thread context of 2912 5048 invoice.exe 93 - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 5048 invoice.exe 2912 RegSvcs.exe 2912 RegSvcs.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 5048 invoice.exe Token: SeDebugPrivilege 2912 RegSvcs.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 5048 wrote to memory of 2912 5048 invoice.exe 93 PID 5048 wrote to memory of 2912 5048 invoice.exe 93 PID 5048 wrote to memory of 2912 5048 invoice.exe 93 PID 5048 wrote to memory of 2912 5048 invoice.exe 93 PID 5048 wrote to memory of 2912 5048 invoice.exe 93 PID 5048 wrote to memory of 2912 5048 invoice.exe 93 PID 5048 wrote to memory of 2912 5048 invoice.exe 93 PID 5048 wrote to memory of 2912 5048 invoice.exe 93 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
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:5048 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2912
-