Analysis
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max time kernel
130s -
max time network
123s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
20-10-2021 03:44
General
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Target
PAYMENT FOR OVERDUE INVOICE1.exe
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Size
473KB
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MD5
17c013ef54d77f3a21dba1015a5d0a6d
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SHA1
2e03a063dacf2ab5da74fc804420be20ec539235
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SHA256
2cdb5e01ac073690d5c4a3ed3ba53eca94dbb701c7811f088a89b8ca9a6e2670
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SHA512
ca294feb4050751537a4f0822b40ffd4d03206aa7bdc5bbd43a958d962dcd93695fbb5f9a9226d9cbf4649952deed3eb36cb90596fc507160827c7ec95fe65af
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.privateemail.com - Port:
587 - Username:
[email protected] - Password:
mmm777
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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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 SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 11 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PAYMENT FOR OVERDUE INVOICE1.exe"C:\Users\Admin\AppData\Local\Temp\PAYMENT FOR OVERDUE INVOICE1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lxzUSgUh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp40ED.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PAYMENT FOR OVERDUE INVOICE1.exe"C:\Users\Admin\AppData\Local\Temp\PAYMENT FOR OVERDUE INVOICE1.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1796-124-0x0000000000000000-mapping.dmp
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memory/2276-122-0x000000000A800000-0x000000000A801000-memory.dmpFilesize
4KB
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memory/2276-118-0x0000000006F40000-0x0000000006F41000-memory.dmpFilesize
4KB
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memory/2276-119-0x0000000006EA0000-0x000000000739E000-memory.dmpFilesize
5.0MB
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memory/2276-120-0x0000000006F00000-0x0000000006F01000-memory.dmpFilesize
4KB
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memory/2276-121-0x0000000007360000-0x0000000007367000-memory.dmpFilesize
28KB
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memory/2276-115-0x0000000000170000-0x0000000000171000-memory.dmpFilesize
4KB
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memory/2276-123-0x000000000A9A0000-0x000000000A9F8000-memory.dmpFilesize
352KB
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memory/2276-117-0x00000000073A0000-0x00000000073A1000-memory.dmpFilesize
4KB
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memory/2612-125-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/2612-126-0x000000000043782E-mapping.dmp
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memory/2612-131-0x0000000004840000-0x0000000004D3E000-memory.dmpFilesize
5.0MB
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memory/2612-132-0x0000000005480000-0x0000000005481000-memory.dmpFilesize
4KB
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memory/2612-133-0x0000000005520000-0x0000000005521000-memory.dmpFilesize
4KB