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Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    29/01/2024, 11:26

General

  • Target

    Sy-Nel Order.xlam

  • Size

    700KB

  • MD5

    19161547cb1c2d2a21f69d62892b9411

  • SHA1

    9999dcc93dab8e3373646b68536664ae7096bd4d

  • SHA256

    166b56c5680d1a1d6af658167147ca5d44d1cd2df5772cae26d3d6051f8dbca7

  • SHA512

    f60b3c84c7037a52241ebf3dcb3828bd0e97b42bd6632352571a9348c50d703c12a6910837643866ef475de90e93441af69c9b47794efc421cf016646057409d

  • SSDEEP

    12288:ExnWUjSJeLg7XmKNBXwjTfaCoH6iSoJSAXw23AQE2PxinXYZ+ZzQUu6osD0ZmQ/h:eC0OVNBuTfaC4eAXPA3nI8zFu6oxYQgW

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
  • Looks up external IP address via web service 2 IoCs

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

  • 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 SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 12 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\Sy-Nel Order.xlam"
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2248
  • 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:2136
    • C:\Users\Admin\HGF.exe
      "C:\Users\Admin\HGF.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2856
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Users\Admin\HGF.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2924

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\HGF.exe

    Filesize

    1.2MB

    MD5

    8287db423c73991e3af55b81556f0c4c

    SHA1

    a9a77b955271146605e2770d47ca2fd91821afe0

    SHA256

    908afb82e415c5c8e5a1d51795b910e5f0fd726f87b12358f183918ba3301491

    SHA512

    e46afb980e36a68fce4d9c4eb485a924607dc49feff2ed513a00f14519ae9a44c0119166f5d65e5db5eb3af649bb5bbf3e0e232c1014855e18da2a0a35051153

  • memory/2248-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2248-1-0x00000000728BD000-0x00000000728C8000-memory.dmp

    Filesize

    44KB

  • memory/2248-28-0x00000000728BD000-0x00000000728C8000-memory.dmp

    Filesize

    44KB

  • memory/2248-31-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2248-32-0x00000000728BD000-0x00000000728C8000-memory.dmp

    Filesize

    44KB

  • memory/2856-21-0x0000000000260000-0x0000000000264000-memory.dmp

    Filesize

    16KB

  • memory/2924-22-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2924-26-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2924-24-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2924-27-0x000000006C500000-0x000000006CBEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2924-29-0x000000006C500000-0x000000006CBEE000-memory.dmp

    Filesize

    6.9MB