Analysis
- max time kernel
105s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
22/02/2023, 11:11
Static task
static1
Behavioral task
behavioral1
Sample
8f87fe0b5603293f372feac809d815c0.exe
Resource
win7-20230220-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
8f87fe0b5603293f372feac809d815c0.exe
Resource
win10v2004-20230220-en
11 signatures
150 seconds
General
- Target 8f87fe0b5603293f372feac809d815c0.exe
- Size 840KB
- Sample230222-m99kmsch2v
- SHA256 53eb83560df949284e8d00992e7a5acf16c77ea64ee89c0bc4b16d394640456b
- MD5 8f87fe0b5603293f372feac809d815c0
- SHA1 5bbfe5448b6b47114a5c887b95aed27bfabe2521
- SHA512 7cffd71486cefb5e744d1c46b93705db508fa34ff04ea41c4c50e58b3ea77d1bc1ed146b7690e783f2c5d28fa1970ce91c25534d045aaabdc5f0c8c96400dacf
- SSDEEP 12288:2WnvXkyLr2ayjh1eNIWl9S747czI0l+x/BLjJ4ZgcOHq3OzsvpySsWCIv+bt+qa:3fky9IISE7cU3GSHODvY7gwr
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
agenttesla
C2
-
https://api.telegram.org/bot5350270151:AAHiqzi7CQnEGEk3Xi-PyJX8ov0x6B-8S1I/
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8f87fe0b5603293f372feac809d815c0.exe Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8f87fe0b5603293f372feac809d815c0.exe Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8f87fe0b5603293f372feac809d815c0.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 19 api.ipify.org 20 api.ipify.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4528 set thread context of 2892 4528 8f87fe0b5603293f372feac809d815c0.exe 83 - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2892 8f87fe0b5603293f372feac809d815c0.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4528 wrote to memory of 2892 4528 8f87fe0b5603293f372feac809d815c0.exe 83 PID 4528 wrote to memory of 2892 4528 8f87fe0b5603293f372feac809d815c0.exe 83 PID 4528 wrote to memory of 2892 4528 8f87fe0b5603293f372feac809d815c0.exe 83 PID 4528 wrote to memory of 2892 4528 8f87fe0b5603293f372feac809d815c0.exe 83 PID 4528 wrote to memory of 2892 4528 8f87fe0b5603293f372feac809d815c0.exe 83 PID 4528 wrote to memory of 2892 4528 8f87fe0b5603293f372feac809d815c0.exe 83 PID 4528 wrote to memory of 2892 4528 8f87fe0b5603293f372feac809d815c0.exe 83 PID 4528 wrote to memory of 2892 4528 8f87fe0b5603293f372feac809d815c0.exe 83 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8f87fe0b5603293f372feac809d815c0.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8f87fe0b5603293f372feac809d815c0.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\8f87fe0b5603293f372feac809d815c0.exe"C:\Users\Admin\AppData\Local\Temp\8f87fe0b5603293f372feac809d815c0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4528 -
C:\Users\Admin\AppData\Local\Temp\8f87fe0b5603293f372feac809d815c0.exe"C:\Users\Admin\AppData\Local\Temp\8f87fe0b5603293f372feac809d815c0.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2892
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\8f87fe0b5603293f372feac809d815c0.exe.log
- Size 1KB
- SHA256 ee17be860e129795491b4be61f5ac446b16f2679e056114024ffc72b2e23a9b7
- MD5 765cff098b629b1eb49e3ef981f7001a
- SHA1 32b7ade1f746d013371141dcebd96e0bb3faeef3
- SHA512 ca2d2ddafc2dcbeab2c93f039bdbc567d4c9e0457e741e71c432b7461a1a8165891f22112ff1b57004ba51271899555fbf001db17d2dc748bafc608817bd9474
- MD5 SHA1 SHA512