Analysis
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max time kernel
152s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 03:18
General
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Target
Las transacciones de su cuenta entre el 01.05.2020 - 30.05.2020.exe
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Size
484KB
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MD5
32b20f8e93bd7f4092ecc41e593df509
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SHA1
5649819910784787eecae42dd12394849f8c80fc
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SHA256
0adddcc2c03723a2282bbec5342b52f6b765973774593125a9b87939e3f8a8c2
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SHA512
bc2332e179f95b4a8362e65d4b81f6b75f47f5aa25cd3c29956383c12816beb7f6b092a5c62d8fda928c2b9c18d316fa05e3375b96cb98551c74b5bb8380b351
Malware Config
Extracted
Protocol: smtp- Host:
mail.ductoslimpios.com.mx - Port:
587 - Username:
[email protected] - Password:
Nhost+321
Extracted
agenttesla
Protocol: smtp- Host:
mail.ductoslimpios.com.mx - Port:
587 - Username:
[email protected] - Password:
Nhost+321
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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Drops file in System32 directory 2 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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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
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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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Enumerates system info in registry 2 TTPs 2 IoCs
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Suspicious behavior: EnumeratesProcesses 5 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 17 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\Las transacciones de su cuenta entre el 01.05.2020 - 30.05.2020.exe"C:\Users\Admin\AppData\Local\Temp\Las transacciones de su cuenta entre el 01.05.2020 - 30.05.2020.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\EwoPqDbFCrZEG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAE75.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Las transacciones de su cuenta entre el 01.05.2020 - 30.05.2020.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\Las transacciones de su cuenta entre el 01.05.2020 - 30.05.2020.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmpAE75.tmpFilesize
1KB
MD5ffabded1b1edaf455988151a5990b9d4
SHA1986089bcf1d9dd8ea7328b978207fd71725a103e
SHA256b1d818063c9dbf2da151de8900d43f05ab91eb4fbf0c0bd32d7c28f1872d96ff
SHA51299cec9615e49f01e427a8b3b8b514d02f21ba049675744d97e57a321f5ae08272d99aa9cd026a530cc94377a685a270b77b3c49a9d5f2272c1f3c686a8626953
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memory/432-131-0x0000000005AA0000-0x0000000005B32000-memory.dmpFilesize
584KB
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memory/432-132-0x0000000005F60000-0x0000000005FFC000-memory.dmpFilesize
624KB
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memory/432-133-0x0000000006BD0000-0x0000000007174000-memory.dmpFilesize
5.6MB
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memory/432-130-0x0000000000E90000-0x0000000000F12000-memory.dmpFilesize
520KB
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memory/1860-140-0x0000000000000000-mapping.dmp
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memory/4492-134-0x0000000000000000-mapping.dmp
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memory/4652-136-0x0000000000000000-mapping.dmp
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memory/4784-138-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/4784-139-0x0000000006180000-0x00000000061E6000-memory.dmpFilesize
408KB
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memory/4784-137-0x0000000000000000-mapping.dmp
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memory/4784-141-0x0000000006940000-0x0000000006990000-memory.dmpFilesize
320KB
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memory/4784-142-0x00000000064C0000-0x00000000064CA000-memory.dmpFilesize
40KB