Analysis
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max time kernel
153s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 11:17
General
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Target
purchase Order NO.8909w4vvy..exe
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Size
583KB
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MD5
b928fd1ba01bd33342b2462fb6e55947
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SHA1
f5d165fcbf2075bedf5a3f0cad36781030d8dcc9
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SHA256
4c09fce4576481f55dcd4cffbe780d90867da332a6d86666831496fa33e36b84
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SHA512
346c7236c5ae67932261483708fed85031ee62c97cd35e7348fb875da794fe0d5d05eee8f979eece0e92578caab8b9cc8859398cfcbd7aca89bed9d361f1d44e
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.bnb-spa.com - Port:
587 - Username:
[email protected] - Password:
tPo!47:glt$E
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 1 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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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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Adds Run key to start application 2 TTPs 1 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 7 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 14 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\purchase Order NO.8909w4vvy..exe"C:\Users\Admin\AppData\Local\Temp\purchase Order NO.8909w4vvy..exe"1⤵
- Checks computer location settings
- 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\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBC6A.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\purchase Order NO.8909w4vvy..exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\purchase Order NO.8909w4vvy..exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
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\purchase Order NO.8909w4vvy..exe.logFilesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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C:\Users\Admin\AppData\Local\Temp\tmpBC6A.tmpFilesize
1KB
MD5072541fbcc0f05e7e00afb8876087822
SHA10a1a6ad25a4a546520fe21bed23b4dd56f5ea7f5
SHA2568a98b2e2084e096028123a79228bc1b11f12179aecfbe53759b3e0805f973116
SHA51207074f512ee920a787af3d49d982795121051cc5cd1ce01d115aab63cd800fd58f2f57e73dafb96151e57ada9d2e407e370abc9c56d8ab604d118dad93c1412d
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memory/1500-137-0x0000000000000000-mapping.dmp
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memory/3644-133-0x0000000005D40000-0x0000000005D4A000-memory.dmpFilesize
40KB
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memory/3644-134-0x0000000009580000-0x000000000961C000-memory.dmpFilesize
624KB
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memory/3644-130-0x0000000000ED0000-0x0000000000F68000-memory.dmpFilesize
608KB
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memory/3644-132-0x0000000005B90000-0x0000000005C22000-memory.dmpFilesize
584KB
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memory/3644-131-0x0000000005EA0000-0x0000000006444000-memory.dmpFilesize
5.6MB
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memory/4160-138-0x0000000000000000-mapping.dmp
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memory/4160-139-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/4160-141-0x0000000006840000-0x00000000068A6000-memory.dmpFilesize
408KB
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memory/4160-142-0x0000000006D60000-0x0000000006DB0000-memory.dmpFilesize
320KB
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memory/4932-135-0x0000000000000000-mapping.dmp