Analysis

  • max time kernel
    167s
  • max time network
    192s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-01-2023 19:21

General

  • Target

    48a3e9b980b570c4414685c37a4cce6a81e32005c825559bc6049f5045385242.xls

  • Size

    36KB

  • MD5

    7e9e621951f87f91f15444709b64d660

  • SHA1

    5491ca45fc97c4e1f309626c0cd36fea28eea568

  • SHA256

    48a3e9b980b570c4414685c37a4cce6a81e32005c825559bc6049f5045385242

  • SHA512

    4431957e06dea4928d4c99322c74d03620ea87e3b1b84ace1f24e9d12372bc9d406525970fcad41c7031d8eab4b65861a9c45cc11a57b05e1db5a4f3d70bda5a

  • SSDEEP

    768:GPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJMCn/8n0tYadTp1Nz46n:6ok3hbdlylKsgqopeJBWhZFGkE+cL2Nq

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Blocklisted process makes network request 2 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\48a3e9b980b570c4414685c37a4cce6a81e32005c825559bc6049f5045385242.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4540
    • C:\Windows\explorer.exe
      explorer.exe C:\Users\Public\Documents\L8eI.vbs
      2⤵
      • Process spawned unexpected child process
      PID:4768
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1152
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\L8eI.vbs"
      2⤵
      • Blocklisted process makes network request
      PID:456

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Public\Documents\L8eI.vbs
    Filesize

    570B

    MD5

    17803c6b6961acec9b27d7a4b025444a

    SHA1

    3986beb10d337ad145a62b1df574e1f00851c23b

    SHA256

    7d2630ec3008c8706c58f1f6ec00f9922e80892b56e98c742467475fc3ad2d02

    SHA512

    653cbc455fea8e3f64505b833934af5b06aa1c175b4d5a456caecd534fcd418f560193f2e41c80a36e675c5cfa17040446e0d22c5d4e5dbd44154218113310cf

  • memory/456-141-0x0000000000000000-mapping.dmp
  • memory/4540-132-0x00007FFB54410000-0x00007FFB54420000-memory.dmp
    Filesize

    64KB

  • memory/4540-134-0x00007FFB54410000-0x00007FFB54420000-memory.dmp
    Filesize

    64KB

  • memory/4540-133-0x00007FFB54410000-0x00007FFB54420000-memory.dmp
    Filesize

    64KB

  • memory/4540-135-0x00007FFB54410000-0x00007FFB54420000-memory.dmp
    Filesize

    64KB

  • memory/4540-136-0x00007FFB54410000-0x00007FFB54420000-memory.dmp
    Filesize

    64KB

  • memory/4540-137-0x00007FFB51AB0000-0x00007FFB51AC0000-memory.dmp
    Filesize

    64KB

  • memory/4540-138-0x00007FFB51AB0000-0x00007FFB51AC0000-memory.dmp
    Filesize

    64KB

  • memory/4768-139-0x0000000000000000-mapping.dmp