Analysis

  • max time kernel
    147s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/10/2023, 09:31

General

  • Target

    IMG_026_7990xlsx.exe

  • Size

    804KB

  • MD5

    75581f0ab61769efc27e279c0cf1ebe7

  • SHA1

    3d9c9d281df3cf8666828bdfa87a82297b8cf475

  • SHA256

    5658649d60ad2eb973e1c657001af54d8c1c927d0abada7a13b743a3c90ee6d9

  • SHA512

    b996ffe5134d4e474077f91233e45cd59caa2c7a3ffc70c170258bf114d9f4f90b0bfaa6e4aca6ed4e3641118053c3469bdcb911a2e04d6a8edda0d2a5965f22

  • SSDEEP

    12288:cOZwvkZUoqDK5vFY6bZ0bE2Pm29Ldm4R0DXzIyMif/XttiYe/HR:EkZUoczbTRNKXIyMI/Xnhe/HR

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\IMG_026_7990xlsx.exe
    "C:\Users\Admin\AppData\Local\Temp\IMG_026_7990xlsx.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2836
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3724

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2836-11-0x0000000074450000-0x0000000074C00000-memory.dmp

    Filesize

    7.7MB

  • memory/2836-1-0x0000000074450000-0x0000000074C00000-memory.dmp

    Filesize

    7.7MB

  • memory/2836-2-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

    Filesize

    64KB

  • memory/2836-3-0x0000000004C40000-0x0000000004C96000-memory.dmp

    Filesize

    344KB

  • memory/2836-4-0x0000000004D10000-0x0000000004D64000-memory.dmp

    Filesize

    336KB

  • memory/2836-5-0x0000000004D80000-0x0000000004DC4000-memory.dmp

    Filesize

    272KB

  • memory/2836-6-0x0000000004DE0000-0x0000000004E2C000-memory.dmp

    Filesize

    304KB

  • memory/2836-7-0x0000000005420000-0x00000000059C4000-memory.dmp

    Filesize

    5.6MB

  • memory/2836-0-0x0000000000290000-0x000000000035C000-memory.dmp

    Filesize

    816KB

  • memory/3724-9-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3724-13-0x00000000057E0000-0x0000000005846000-memory.dmp

    Filesize

    408KB

  • memory/3724-14-0x0000000005880000-0x0000000005890000-memory.dmp

    Filesize

    64KB

  • memory/3724-12-0x0000000074450000-0x0000000074C00000-memory.dmp

    Filesize

    7.7MB

  • memory/3724-15-0x0000000006BE0000-0x0000000006C30000-memory.dmp

    Filesize

    320KB

  • memory/3724-16-0x0000000006CD0000-0x0000000006D62000-memory.dmp

    Filesize

    584KB

  • memory/3724-17-0x0000000006C80000-0x0000000006C8A000-memory.dmp

    Filesize

    40KB

  • memory/3724-18-0x0000000074450000-0x0000000074C00000-memory.dmp

    Filesize

    7.7MB

  • memory/3724-19-0x0000000005880000-0x0000000005890000-memory.dmp

    Filesize

    64KB