Analysis
- max time kernel
132s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20220310-en - submitted
21/03/2022, 12:12
General
- Target MOD41SA10PSQ4W1.exe
- Size 70KB
- Sample220321-pc6tlacae5
- SHA256 c6045ce3162c17ebce174609ecbca8e5024a69edcc37c89bc60ff2e07cb52475
Malware Config
Extracted
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Protocol
smtp
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Host
mail.ecotanksystems.in
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Port
587
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Username
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Password
krishna@0612
Extracted
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agenttesla
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Protocol
smtp
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Host
mail.ecotanksystems.in
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Port
587
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Username
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Password
krishna@0612
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Drops file in Drivers directory 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 16 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\MOD41SA10PSQ4W1.exe"C:\Users\Admin\AppData\Local\Temp\MOD41SA10PSQ4W1.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\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout 202⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout 203⤵
- Delays execution with timeout.exe
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C:\Users\Admin\AppData\Local\Temp\MOD41SA10PSQ4W1.exeC:\Users\Admin\AppData\Local\Temp\MOD41SA10PSQ4W1.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\MOD41SA10PSQ4W1.exeC:\Users\Admin\AppData\Local\Temp\MOD41SA10PSQ4W1.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\MOD41SA10PSQ4W1.exeC:\Users\Admin\AppData\Local\Temp\MOD41SA10PSQ4W1.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\MOD41SA10PSQ4W1.exeC:\Users\Admin\AppData\Local\Temp\MOD41SA10PSQ4W1.exe2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1848-140-0x0000000005580000-0x0000000005B24000-memory.dmp
memory/1848-137-0x0000000000400000-0x000000000043A000-memory.dmp
memory/1848-139-0x0000000074A20000-0x00000000751D0000-memory.dmp
memory/1848-141-0x0000000005070000-0x000000000510C000-memory.dmp
memory/1848-142-0x0000000004FD0000-0x0000000005574000-memory.dmp
memory/1848-143-0x0000000005CE0000-0x0000000005D46000-memory.dmp
memory/1848-144-0x0000000006260000-0x00000000062B0000-memory.dmp
memory/1848-145-0x00000000066A0000-0x0000000006732000-memory.dmp
memory/1848-146-0x0000000006680000-0x000000000668A000-memory.dmp
memory/3036-136-0x0000000003250000-0x0000000003260000-memory.dmp
memory/3036-135-0x0000000000DF0000-0x0000000000E08000-memory.dmp
memory/3036-134-0x0000000074A20000-0x00000000751D0000-memory.dmp