Analysis

  • max time kernel
    180s
  • max time network
    213s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250411-en
  • resource tags

    arch:x64arch:x86image:win11-20250411-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23/04/2025, 08:13

General

  • Target

    BL98229909101627/BL98229909101627.exe

  • Size

    992KB

  • MD5

    70386ced8b009d28b70269b18ce2ca6c

  • SHA1

    0abadc4432da2cf489e3c9ad060b389e36feebed

  • SHA256

    049cc2d1388dba66dfeb9fa5de703c293b681641a855d13a8cc1490b9d64d8ce

  • SHA512

    f9921f3a72780a1f98f3b177b2f550c38030a0bd79702b826ddbc19972928869e024df7a8343dfa8132151047ad9a208412c5e091938c6afe45c85914d0d66b0

  • SSDEEP

    12288:NRWp2S/1kgdprUT1ErcaZJDNXuODvLahmke0MQoUd7NoSwYszfFvANoKVs5t:vWpH6a0yAGDNXD2hmgpxwYs5vAor5t

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://s4.serv00.com
  • Port:
    21
  • Username:
    f2241_dod
  • Password:
    Ball900@@

Signatures

  • AgentTesla

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

  • Agenttesla family
  • Executes dropped EXE 3 IoCs
  • 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BL98229909101627\BL98229909101627.exe
    "C:\Users\Admin\AppData\Local\Temp\BL98229909101627\BL98229909101627.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5448
    • C:\Users\Admin\AppData\Local\Temp\BL98229909101627\BL98229909101627.exe
      "C:\Users\Admin\AppData\Local\Temp\BL98229909101627\BL98229909101627.exe"
      2⤵
        PID:3020
      • C:\Users\Admin\AppData\Local\Temp\BL98229909101627\BL98229909101627.exe
        "C:\Users\Admin\AppData\Local\Temp\BL98229909101627\BL98229909101627.exe"
        2⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:464
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\adobe\adobe.exe
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:3756
      • C:\Users\Admin\AppData\Roaming\adobe\adobe.exe
        C:\Users\Admin\AppData\Roaming\adobe\adobe.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4776
        • C:\Users\Admin\AppData\Roaming\adobe\adobe.exe
          "C:\Users\Admin\AppData\Roaming\adobe\adobe.exe"
          3⤵
          • Executes dropped EXE
          PID:2772
        • C:\Users\Admin\AppData\Roaming\adobe\adobe.exe
          "C:\Users\Admin\AppData\Roaming\adobe\adobe.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: SetClipboardViewer
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1812

    Network

    MITRE ATT&CK Enterprise v16

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\BL98229909101627.exe.log

      Filesize

      1KB

      MD5

      7e1ed0055c3eaa0bbc4a29ec1ef15a6a

      SHA1

      765b954c1adbb6a6ecc4fe912fdaa6d0fba0ae7d

      SHA256

      4c17576f64dea465c45a50573ee41771f7be9962ab2d07f961af4df5589bdcce

      SHA512

      de7c784c37d18c43820908add88f08ab4864c0ef3f9d158cc2c9d1bab120613cb093dd4bfc5d7ed0c289414956cfe0b213c386f8e6b5753847dec915566297c8

    • C:\Users\Admin\AppData\Roaming\Adobe\adobe.exe

      Filesize

      992KB

      MD5

      70386ced8b009d28b70269b18ce2ca6c

      SHA1

      0abadc4432da2cf489e3c9ad060b389e36feebed

      SHA256

      049cc2d1388dba66dfeb9fa5de703c293b681641a855d13a8cc1490b9d64d8ce

      SHA512

      f9921f3a72780a1f98f3b177b2f550c38030a0bd79702b826ddbc19972928869e024df7a8343dfa8132151047ad9a208412c5e091938c6afe45c85914d0d66b0

    • memory/464-11-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/464-25-0x0000000074C20000-0x00000000753D1000-memory.dmp

      Filesize

      7.7MB

    • memory/464-24-0x0000000006C60000-0x0000000006CB0000-memory.dmp

      Filesize

      320KB

    • memory/464-17-0x0000000074C20000-0x00000000753D1000-memory.dmp

      Filesize

      7.7MB

    • memory/464-16-0x00000000055E0000-0x0000000005646000-memory.dmp

      Filesize

      408KB

    • memory/464-14-0x0000000074C20000-0x00000000753D1000-memory.dmp

      Filesize

      7.7MB

    • memory/4776-32-0x0000000074C20000-0x00000000753D1000-memory.dmp

      Filesize

      7.7MB

    • memory/4776-26-0x0000000074C20000-0x00000000753D1000-memory.dmp

      Filesize

      7.7MB

    • memory/4776-23-0x0000000074C20000-0x00000000753D1000-memory.dmp

      Filesize

      7.7MB

    • memory/5448-5-0x0000000005160000-0x00000000051FC000-memory.dmp

      Filesize

      624KB

    • memory/5448-10-0x00000000063C0000-0x0000000006488000-memory.dmp

      Filesize

      800KB

    • memory/5448-9-0x0000000074C20000-0x00000000753D1000-memory.dmp

      Filesize

      7.7MB

    • memory/5448-15-0x0000000074C20000-0x00000000753D1000-memory.dmp

      Filesize

      7.7MB

    • memory/5448-8-0x0000000074C2E000-0x0000000074C2F000-memory.dmp

      Filesize

      4KB

    • memory/5448-7-0x0000000005220000-0x000000000523A000-memory.dmp

      Filesize

      104KB

    • memory/5448-6-0x0000000074C20000-0x00000000753D1000-memory.dmp

      Filesize

      7.7MB

    • memory/5448-0-0x0000000074C2E000-0x0000000074C2F000-memory.dmp

      Filesize

      4KB

    • memory/5448-4-0x0000000004E70000-0x0000000004E7A000-memory.dmp

      Filesize

      40KB

    • memory/5448-3-0x0000000004EB0000-0x0000000004F42000-memory.dmp

      Filesize

      584KB

    • memory/5448-2-0x0000000005460000-0x0000000005A06000-memory.dmp

      Filesize

      5.6MB

    • memory/5448-1-0x00000000002D0000-0x00000000003CE000-memory.dmp

      Filesize

      1016KB