Analysis
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max time kernel
118s -
max time network
39s -
platform
windows7_x64 -
resource
win7-20220414-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
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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CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
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AgentTesla Payload 6 IoCs
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ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
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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 3 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⤵
- 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\tmp9C21.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⤵
- 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⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp9C21.tmpFilesize
1KB
MD579b67598b4a3eeff80eae36e71d9a735
SHA134ec68968b5b6494bd011249a1a5327090f146d6
SHA256225b5ec0cf4982035f264bd2698d44fa82708e6ea76f5206ffe64ed959413633
SHA51217cbc4aa726994fb2854e7f7338251e19e8eaaed1023e8da5517e6c48fff6045ecf731865ec3095eddc40b1799faf09eac52c0981d3b88fa73e364e7bd2b71f4
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memory/240-54-0x0000000000E10000-0x0000000000E92000-memory.dmpFilesize
520KB
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memory/240-55-0x0000000000590000-0x00000000005EE000-memory.dmpFilesize
376KB
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memory/240-56-0x00000000757C1000-0x00000000757C3000-memory.dmpFilesize
8KB
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memory/240-57-0x00000000001F0000-0x00000000001F8000-memory.dmpFilesize
32KB
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memory/240-58-0x00000000049B0000-0x0000000004A08000-memory.dmpFilesize
352KB
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memory/528-73-0x0000000000000000-mapping.dmp
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memory/1120-59-0x0000000000000000-mapping.dmp
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memory/1344-62-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1344-64-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1344-65-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1344-66-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1344-67-0x000000000044CE2E-mapping.dmp
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memory/1344-69-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1344-71-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1344-61-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB