Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    26-03-2024 09:31

General

  • Target

    36KV XLPE Materials-300mm.xlam

  • Size

    688KB

  • MD5

    dd2f4303249786c6fa25e9b16664f1ec

  • SHA1

    9fd8215c6da713423874bf29cd66dc87429176a7

  • SHA256

    f0a27618b5718409b3f2343a223f7d75ae36ab893f98315a13fe492b29bd81d1

  • SHA512

    462ab897b86af39973fdc8db736d4079032c1596538bc0000c69e4d869f896e2f54d7ecf308f5654da5791bccc6002184f38c32807a1605e1a60390c7ba026b1

  • SSDEEP

    12288:DdtGeA+wXto4IFqqAzAsOppH5RZ6DF83ND8hc/ejS7j44RhTBkP:DdtGewXto4IZAzKTjZ6DFkNgc/gS7j5c

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\36KV XLPE Materials-300mm.xlam"
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2040
  • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
    "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
    1⤵
    • Blocklisted process makes network request
    • Loads dropped DLL
    • Launches Equation Editor
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Users\Admin\AppData\Local\Temp\zibcvypliu.exe
      "C:\Users\Admin\AppData\Local\Temp\zibcvypliu.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2872
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Users\Admin\AppData\Local\Temp\zibcvypliu.exe"
        3⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:2492

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\zibcvypliu.exe

    Filesize

    1.1MB

    MD5

    4f2752fcd683bfff201108b2091510ce

    SHA1

    f2e7b7d2d56ba2232892d75a8c4d0bca7ef604c8

    SHA256

    5c00d919e3895f872959d16c8bf210da4f9e20c01791a88d7a0f60b13a22c968

    SHA512

    ec4ce3988ff1a5ad484b5f21bd4672318ee002c20d3cda789ced3288508b9d80eae1b45aa5ca8c9e4b5048eced9de73684bc885f2f64563c565b811b7df30929

  • memory/2040-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2040-1-0x0000000071D7D000-0x0000000071D88000-memory.dmp

    Filesize

    44KB

  • memory/2040-35-0x0000000071D7D000-0x0000000071D88000-memory.dmp

    Filesize

    44KB

  • memory/2040-34-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2040-30-0x0000000071D7D000-0x0000000071D88000-memory.dmp

    Filesize

    44KB

  • memory/2492-27-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2492-28-0x000000006B9C0000-0x000000006C0AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2492-29-0x0000000004BF0000-0x0000000004C30000-memory.dmp

    Filesize

    256KB

  • memory/2492-25-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2492-31-0x000000006B9C0000-0x000000006C0AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2492-32-0x0000000004BF0000-0x0000000004C30000-memory.dmp

    Filesize

    256KB

  • memory/2492-23-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2872-22-0x00000000001A0000-0x00000000001A4000-memory.dmp

    Filesize

    16KB