Analysis

  • max time kernel
    149s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    12-06-2024 02:10

General

  • Target

    bf797b35ba6e000bb02bfaadb3d2b27fae71945e5c69fb970aee3f749cd373ed.exe

  • Size

    718KB

  • MD5

    88ad200f94965579926bc2b51db46e8d

  • SHA1

    3c5a01be98da5dbb9063e2f210ed1d47d30a580f

  • SHA256

    bf797b35ba6e000bb02bfaadb3d2b27fae71945e5c69fb970aee3f749cd373ed

  • SHA512

    7cfd646d124b87cad84930b4a19465a263907296ffd61a30b82a897bbac5ba316622fe0746bed6760c992d2cd75ab9a159c3cbd4e60cc328852f2384becc3715

  • SSDEEP

    12288:aX0pxwV36Di8BtLaKReOjbhqJREXITuXmfs6yABqsdFBpHp8AuZFkGxygLZCLk3l:uBFK0tOjbWa0tDDpnuZeGxLZCLUdZB

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.jeepcommerce.rs
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    q[0r3BqZHV[u

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf797b35ba6e000bb02bfaadb3d2b27fae71945e5c69fb970aee3f749cd373ed.exe
    "C:\Users\Admin\AppData\Local\Temp\bf797b35ba6e000bb02bfaadb3d2b27fae71945e5c69fb970aee3f749cd373ed.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2976
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\bf797b35ba6e000bb02bfaadb3d2b27fae71945e5c69fb970aee3f749cd373ed.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:296

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2976-0-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

    Filesize

    4KB

  • memory/2976-1-0x0000000000140000-0x00000000001F8000-memory.dmp

    Filesize

    736KB

  • memory/2976-2-0x0000000074A50000-0x000000007513E000-memory.dmp

    Filesize

    6.9MB

  • memory/2976-3-0x0000000001D60000-0x0000000001D82000-memory.dmp

    Filesize

    136KB

  • memory/2976-4-0x0000000000730000-0x0000000000740000-memory.dmp

    Filesize

    64KB

  • memory/2976-5-0x00000000058E0000-0x0000000005964000-memory.dmp

    Filesize

    528KB

  • memory/2976-6-0x00000000044C0000-0x0000000004502000-memory.dmp

    Filesize

    264KB

  • memory/2976-9-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

    Filesize

    4KB

  • memory/2976-10-0x0000000074A50000-0x000000007513E000-memory.dmp

    Filesize

    6.9MB