Analysis

  • max time kernel
    120s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 14:39

General

  • Target

    DHL_AWB 2870565795/DHL_AWB 2870565795.exe

  • Size

    478KB

  • MD5

    58f6a878d2834fe4ef2748a6ff34da71

  • SHA1

    cd446f562bdb956a358c5230bc9b255356a5565e

  • SHA256

    d2bd7d282670277d1f8f2f569ef18f889a634c11909d9f157d66837a66618717

  • SHA512

    206fd2c9f0ba720e68951a329dd6a1760a474cf5313b05ff355dda9fec49f66f5c02c5ddf469a9f091926890a0345bb43de183e8990a7b47db45d5fe40e3a0b0

  • SSDEEP

    12288:hznTdXs1M6tMy8JRwcM3ykuVu9p8KnZKzz+FWgxh0:9heMGMyCRwcGyz08KZKSW2

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5705602282:AAFcwBeX9coGMKJeokPZOq06CS7N1H2rCJI/

Signatures

  • AgentTesla

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

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

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

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL_AWB 2870565795\DHL_AWB 2870565795.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL_AWB 2870565795\DHL_AWB 2870565795.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4972
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
      2⤵
        PID:4368
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:812

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/812-135-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/812-136-0x0000000000437C9E-mapping.dmp

    • memory/812-138-0x0000000005650000-0x0000000005BF4000-memory.dmp

      Filesize

      5.6MB

    • memory/812-139-0x0000000005150000-0x00000000051EC000-memory.dmp

      Filesize

      624KB

    • memory/812-140-0x0000000005EB0000-0x0000000005F16000-memory.dmp

      Filesize

      408KB

    • memory/812-141-0x00000000065C0000-0x0000000006610000-memory.dmp

      Filesize

      320KB

    • memory/812-142-0x0000000006960000-0x00000000069F2000-memory.dmp

      Filesize

      584KB

    • memory/812-143-0x0000000006880000-0x000000000688A000-memory.dmp

      Filesize

      40KB

    • memory/4972-132-0x000002B648F70000-0x000002B648FEC000-memory.dmp

      Filesize

      496KB

    • memory/4972-133-0x00007FF997050000-0x00007FF997B11000-memory.dmp

      Filesize

      10.8MB

    • memory/4972-134-0x00007FF997050000-0x00007FF997B11000-memory.dmp

      Filesize

      10.8MB

    • memory/4972-137-0x00007FF997050000-0x00007FF997B11000-memory.dmp

      Filesize

      10.8MB