Analysis
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max time kernel
120s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system -
submitted
05-12-2023 08:05
Static task
static1
Behavioral task
behavioral1
Sample
Doc 20230512.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
Doc 20230512.exe
Resource
win10v2004-20231127-en
General
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Target
Doc 20230512.exe
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Size
695KB
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MD5
c891275650f4cfc017f91d1132b15b34
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SHA1
2ba052377e2df3d036e7f8d80a88ced4dedbc5b9
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SHA256
5bb7ca6a83079f79045f0fa552b1df5b003f01e6f348e6f5da91793c660647e6
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SHA512
ef9f5a348c399d3f9091b1ad9368f8940862b89f1af8c9591ba7d788d47044682a28cbdeddd46678f0819afef0a40e0b23179a3f80fe673e2b6cdfe2c43dd16e
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SSDEEP
12288:Xnl5nF80iHjbxEsoZZ+kwV9/Qaf2GVBSmr0QpG1zBjGHdbR04dqrlbm:3lKlEsnvonGz0Qp64kHhbm
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
sg3plcpnl0195.prod.sin3.secureserver.net - Port:
587 - Username:
[email protected] - Password:
V#[email protected]&Qo! - Email To:
[email protected]
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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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 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Doc 20230512.exedescription pid process target process PID 1600 set thread context of 2272 1600 Doc 20230512.exe Doc 20230512.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Doc 20230512.exepid process 2272 Doc 20230512.exe 2272 Doc 20230512.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Doc 20230512.exedescription pid process Token: SeDebugPrivilege 2272 Doc 20230512.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
Doc 20230512.exedescription pid process target process PID 1600 wrote to memory of 2272 1600 Doc 20230512.exe Doc 20230512.exe PID 1600 wrote to memory of 2272 1600 Doc 20230512.exe Doc 20230512.exe PID 1600 wrote to memory of 2272 1600 Doc 20230512.exe Doc 20230512.exe PID 1600 wrote to memory of 2272 1600 Doc 20230512.exe Doc 20230512.exe PID 1600 wrote to memory of 2272 1600 Doc 20230512.exe Doc 20230512.exe PID 1600 wrote to memory of 2272 1600 Doc 20230512.exe Doc 20230512.exe PID 1600 wrote to memory of 2272 1600 Doc 20230512.exe Doc 20230512.exe PID 1600 wrote to memory of 2272 1600 Doc 20230512.exe Doc 20230512.exe PID 1600 wrote to memory of 2272 1600 Doc 20230512.exe Doc 20230512.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Doc 20230512.exe"C:\Users\Admin\AppData\Local\Temp\Doc 20230512.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Users\Admin\AppData\Local\Temp\Doc 20230512.exe"C:\Users\Admin\AppData\Local\Temp\Doc 20230512.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2272