Analysis
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max time kernel
144s -
max time network
148s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
25-01-2021 20:02
General
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Target
Feb list, pdf.exe
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Size
1.9MB
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MD5
acc6b27b4bda74f72a6c0f89532a2a7a
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SHA1
72edce4967115f3c4b820934b348040d81a706c5
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SHA256
8fea29fb52c9877c3776e5551c498c729222da2fc7a6c6813ad262f3e3a78c25
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SHA512
08cb578e9e93a05f1414b6f7cf2ce3f612e814b9a0c71699f1e316944452593d576fdadaeaca2bee1855ae9d0bf3093444a462ed0cf202f2b2f5a0af475a7eb7
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.arval.com.pe - Port:
587 - Username:
[email protected] - Password:
t3xt1L3sarvaL!
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 2 IoCs
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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 2 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 SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 16 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Feb list, pdf.exe"C:\Users\Admin\AppData\Local\Temp\Feb list, pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Feb list, pdf.exe"C:\Users\Admin\AppData\Local\Temp\Feb list, pdf.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Feb list, pdf.exe"C:\Users\Admin\AppData\Local\Temp\Feb list, pdf.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Feb list, pdf.exe.logMD5
e1ad3bacd307fe6102a60182d19ceb20
SHA18fb02689a178547777d813929e9310acd5d9f99d
SHA2562b9307a51cfe2c8ed054c1ae037add024c814c84556b8f4a79e526f2688bda31
SHA512bb66bb67c8d0ae8750cc7f58576f7f90b13b174ee0c5aca46ea51250ba5e0df6286b4abcac78e774277da305eed2f5681fcf2a30a7e3ba2952bffd84137a1986
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memory/740-3-0x0000000000770000-0x0000000000771000-memory.dmpFilesize
4KB
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memory/740-5-0x00000000055C0000-0x00000000055C1000-memory.dmpFilesize
4KB
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memory/740-6-0x00000000051C0000-0x00000000051C1000-memory.dmpFilesize
4KB
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memory/740-7-0x0000000005110000-0x0000000005111000-memory.dmpFilesize
4KB
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memory/740-8-0x0000000005490000-0x0000000005491000-memory.dmpFilesize
4KB
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memory/740-9-0x0000000005100000-0x0000000005101000-memory.dmpFilesize
4KB
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memory/740-2-0x0000000073EE0000-0x00000000745CE000-memory.dmpFilesize
6.9MB
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memory/740-17-0x0000000002B50000-0x0000000002B51000-memory.dmpFilesize
4KB
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memory/3704-22-0x0000000073EE0000-0x00000000745CE000-memory.dmpFilesize
6.9MB
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memory/3704-20-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/3704-21-0x000000000043763E-mapping.dmp
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memory/3704-27-0x0000000004F10000-0x0000000004F11000-memory.dmpFilesize
4KB
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memory/3704-28-0x00000000053F0000-0x00000000053F1000-memory.dmpFilesize
4KB
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memory/3704-29-0x0000000005B80000-0x0000000005B81000-memory.dmpFilesize
4KB
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memory/3704-32-0x0000000004F11000-0x0000000004F12000-memory.dmpFilesize
4KB
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memory/3920-13-0x0000000073EE0000-0x00000000745CE000-memory.dmpFilesize
6.9MB
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memory/3920-11-0x000000001003FCFE-mapping.dmp
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memory/3920-18-0x0000000004B70000-0x0000000004B71000-memory.dmpFilesize
4KB
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memory/3920-10-0x0000000010000000-0x0000000010044000-memory.dmpFilesize
272KB