Analysis
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max time kernel
142s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2023 18:23
Static task
static1
Behavioral task
behavioral1
Sample
1.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
1.exe
Resource
win10v2004-20231127-en
General
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Target
1.exe
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Size
164KB
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MD5
e06b4b39fd3087fa167badf3017937e8
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SHA1
bed9f297239520657f1d2902ad684fe2e080df31
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SHA256
0f1c8a3bfaeb3510d11c4ab58231de540a70732f38c50a7b5f528580e6409eb0
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SHA512
8b37a3d11f78e9356fbc84c96e7c7fe18105a0120ebd47f6369f4d32a063cc86106f1b640414e3d176b5768d812686de6c2bd83e46e78d264da502b0616cc40e
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SSDEEP
3072:p0A3u0hCfiEYtWa9LLkXCJZTJaDG2Me0:pxuTfiEYtAXC92
Malware Config
Extracted
Protocol: smtp- Host:
mailbuilderbuilder.com - Port:
587 - Username:
[email protected] - Password:
Alluminio.1
Extracted
agenttesla
Protocol: smtp- Host:
mailbuilderbuilder.com - Port:
587 - Username:
[email protected] - Password:
Alluminio.1 - 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 61 api.ipify.org 62 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
1.exedescription pid process target process PID 2892 set thread context of 4388 2892 1.exe 1.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
1.exepid process 4388 1.exe 4388 1.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
1.exe1.exedescription pid process Token: SeDebugPrivilege 2892 1.exe Token: SeDebugPrivilege 4388 1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
1.exedescription pid process target process PID 2892 wrote to memory of 4388 2892 1.exe 1.exe PID 2892 wrote to memory of 4388 2892 1.exe 1.exe PID 2892 wrote to memory of 4388 2892 1.exe 1.exe PID 2892 wrote to memory of 4388 2892 1.exe 1.exe PID 2892 wrote to memory of 4388 2892 1.exe 1.exe PID 2892 wrote to memory of 4388 2892 1.exe 1.exe PID 2892 wrote to memory of 4388 2892 1.exe 1.exe PID 2892 wrote to memory of 4388 2892 1.exe 1.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1.exe"C:\Users\Admin\AppData\Local\Temp\1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2892 -
C:\Users\Admin\AppData\Local\Temp\1.exeC:\Users\Admin\AppData\Local\Temp\1.exe2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4388
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58c2da65103d6b46d8cf610b118210cf0
SHA19db4638340bb74f2af3161cc2c9c0b8b32e6ab65
SHA2560e48e2efd419951e0eb9a8d942493cfdf5540d1d19ff9dae6f145fb3ebcbeeac
SHA5123cf5a125276e264cd8478f2b92d3848fb68b96d46eb4a39e650d09df02068c274881a1c314cdfbfdcb452672fb70dd8becf3ffe9562d39919d9c4d6b07fbb614