Analysis
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max time kernel
138s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
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submitted
04-12-2023 17:54
General
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Target
Zaplatajpeg.exe
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Size
626KB
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MD5
d938337b29065b1d0a4d4c375ac9b6ac
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SHA1
0e439109d66f905b4c0643a4e55806373fc4e1f7
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SHA256
743ae15d3849044f1e67fc43b58ad6a701bee9826e90ef6119ab9697835cd88d
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SHA512
981390445d955c09df13f33d50a9ee341374cd33991820b33e05d45f20fd227737cf2ba422df6c97fad9b1200638fdb40173ac962d3f0491f87d5f5ac067876a
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SSDEEP
12288:eNb45+po2GH2n0XKKx8pq4orY1H73FFIgLKyuJY5hhpNe1ifJlFUw+Huxm:Ka+pJwKKx8pqgb3YgLpvfXFUnHux
Malware Config
Extracted
Protocol: smtp- Host:
smtp.web4u.cz - Port:
587 - Username:
[email protected] - Password:
sdft5472
Extracted
agenttesla
Protocol: smtp- Host:
smtp.web4u.cz - Port:
587 - Username:
[email protected] - Password:
sdft5472 - 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.
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Suspicious use of SetThreadContext 1 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Zaplatajpeg.exe"C:\Users\Admin\AppData\Local\Temp\Zaplatajpeg.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Zaplatajpeg.exe"C:\Users\Admin\AppData\Local\Temp\Zaplatajpeg.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
32KB
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Filesize
584KB
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Filesize
7.7MB
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Filesize
624KB
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Filesize
488KB
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Filesize
40KB
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Filesize
96KB
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Filesize
7.7MB
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Filesize
40KB
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Filesize
64KB
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Filesize
64KB
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Filesize
648KB
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Filesize
5.6MB
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Filesize
7.7MB
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Filesize
64KB
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Filesize
7.7MB
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Filesize
408KB
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Filesize
264KB
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Filesize
320KB
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Filesize
7.7MB
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Filesize
64KB