Analysis
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max time kernel
117s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
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submitted
05-12-2023 18:22
General
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Target
Kviitung_04-12-2023.exe
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Size
626KB
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MD5
a98f880aefb9f770cf0f280b6aabfc63
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SHA1
9aa8fbe199f4f7386e418076438f72a958147f0c
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SHA256
f4c0c2490f385084d7673926acb7c950c30dfba656a77c85493cfc04889d002a
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SHA512
f2fc8169d950b39e1387a44613418196f70fb719e2c8ee055fd5f7cb18e73803dffe548f38a1653e22af8174ddaedf193b46ae30f8f8c84dcc3d1155e8076e8e
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SSDEEP
12288:FI45+po2V1kWEOIVim9yY7gRMpMCuaA9NV+wuSyW4hIcKvSwkPAg:FL+pJQnJyY7gepOaA9NV+gyW4hIpKP
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.
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Suspicious use of SetThreadContext 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Kviitung_04-12-2023.exe"C:\Users\Admin\AppData\Local\Temp\Kviitung_04-12-2023.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Kviitung_04-12-2023.exe"C:\Users\Admin\AppData\Local\Temp\Kviitung_04-12-2023.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
648KB
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Filesize
6.9MB
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Filesize
256KB
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Filesize
96KB
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Filesize
32KB
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Filesize
40KB
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Filesize
256KB
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Filesize
488KB
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Filesize
6.9MB
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Filesize
256KB
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Filesize
256KB
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Filesize
256KB
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Filesize
4KB
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Filesize
256KB
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Filesize
256KB
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Filesize
256KB
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Filesize
256KB
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
256KB