Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    29-04-2024 08:17

General

  • Target

    Rendeles_042024,jpg.scr.exe

  • Size

    721KB

  • MD5

    f9a9054852e6529e9e3d8b392241601c

  • SHA1

    e96482de839c1fe063982ef64d6d930312054ea6

  • SHA256

    96c18fdcc302306d493535b0c90413892759a61925bcb3cf2f0d1a1cbbac554e

  • SHA512

    91349fbd232b4663e72f5b54398f5e751a4ba86cb436efd44a605976386d4944270ee50971349509108157f8e55742c4cb4709ef9e086db2146bfd0afefeaabf

  • SSDEEP

    12288:nTB778QduSfT7LaUuOuIgVuboparMfRVzZ9uc+VnP6GStXRl4UNmXP1dDhu1vMCg:TBLuA8OzgVub4arqVzZ9o3OXRlBNYP1X

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Rendeles_042024,jpg.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\Rendeles_042024,jpg.scr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Users\Admin\AppData\Local\Temp\Rendeles_042024,jpg.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\Rendeles_042024,jpg.scr.exe"
      2⤵
        PID:2740
      • C:\Users\Admin\AppData\Local\Temp\Rendeles_042024,jpg.scr.exe
        "C:\Users\Admin\AppData\Local\Temp\Rendeles_042024,jpg.scr.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3020

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2028-18-0x0000000074500000-0x0000000074BEE000-memory.dmp

      Filesize

      6.9MB

    • memory/2028-1-0x0000000074500000-0x0000000074BEE000-memory.dmp

      Filesize

      6.9MB

    • memory/2028-2-0x00000000071A0000-0x00000000071E0000-memory.dmp

      Filesize

      256KB

    • memory/2028-3-0x00000000005F0000-0x0000000000608000-memory.dmp

      Filesize

      96KB

    • memory/2028-4-0x0000000000610000-0x000000000061E000-memory.dmp

      Filesize

      56KB

    • memory/2028-5-0x0000000000620000-0x0000000000636000-memory.dmp

      Filesize

      88KB

    • memory/2028-6-0x0000000007100000-0x0000000007184000-memory.dmp

      Filesize

      528KB

    • memory/2028-0-0x00000000001C0000-0x000000000027A000-memory.dmp

      Filesize

      744KB

    • memory/3020-20-0x0000000004800000-0x0000000004840000-memory.dmp

      Filesize

      256KB

    • memory/3020-22-0x0000000004800000-0x0000000004840000-memory.dmp

      Filesize

      256KB

    • memory/3020-8-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/3020-15-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/3020-13-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/3020-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/3020-10-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/3020-17-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/3020-19-0x0000000074500000-0x0000000074BEE000-memory.dmp

      Filesize

      6.9MB

    • memory/3020-9-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/3020-21-0x0000000074500000-0x0000000074BEE000-memory.dmp

      Filesize

      6.9MB

    • memory/3020-7-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB