Analysis
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max time kernel
118s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
06-12-2023 05:09
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20231127-en
General
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Target
tmp.exe
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Size
14KB
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MD5
716c27c08649ad5319ef1c41950c1c82
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SHA1
a6ea541cf0cbb41550dcde53b3da372f16c31652
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SHA256
f62640b8047a6105ba98ab690d7908f6c3e8aef22f05d6512e838457a01e0593
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SHA512
f7bcb38737514e0d335ea3d7db8a172e077ad00825740b4e54dedb42fcdc135456981ce2774c9b328809cb28a83b5efe9a281f40b641af1985ed3d2493b0b40e
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SSDEEP
384:QqZ14rOq8oLxRLNrqNXjLgL8lLhBN2F3T:QiCCcxFkXk2LhBN03T
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot6184846740:AAFy48QnJEpbqT9DY_xx392kz1tH5_khlWo/
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.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.
Processes:
flow ioc 8 api.ipify.org 9 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
tmp.exedescription pid process target process PID 1456 set thread context of 2768 1456 tmp.exe RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegAsm.exepid process 2768 RegAsm.exe 2768 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
tmp.exeRegAsm.exedescription pid process Token: SeDebugPrivilege 1456 tmp.exe Token: SeDebugPrivilege 2768 RegAsm.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
tmp.exedescription pid process target process PID 1456 wrote to memory of 2768 1456 tmp.exe RegAsm.exe PID 1456 wrote to memory of 2768 1456 tmp.exe RegAsm.exe PID 1456 wrote to memory of 2768 1456 tmp.exe RegAsm.exe PID 1456 wrote to memory of 2768 1456 tmp.exe RegAsm.exe PID 1456 wrote to memory of 2768 1456 tmp.exe RegAsm.exe PID 1456 wrote to memory of 2768 1456 tmp.exe RegAsm.exe PID 1456 wrote to memory of 2768 1456 tmp.exe RegAsm.exe PID 1456 wrote to memory of 2768 1456 tmp.exe RegAsm.exe PID 1456 wrote to memory of 2768 1456 tmp.exe RegAsm.exe PID 1456 wrote to memory of 2768 1456 tmp.exe RegAsm.exe PID 1456 wrote to memory of 2768 1456 tmp.exe RegAsm.exe PID 1456 wrote to memory of 2768 1456 tmp.exe RegAsm.exe -
outlook_office_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
outlook_win_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1456 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe#cmd2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2768