Analysis

  • max time kernel
    119s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01-03-2024 01:59

General

  • Target

    b0098664ec14d1368dcb7a06e9860f4e.xlsb

  • Size

    113KB

  • MD5

    b0098664ec14d1368dcb7a06e9860f4e

  • SHA1

    d309fecb07e56d3affa03796e43d4c3b4b09055c

  • SHA256

    f4ee286a74576b7ab63eaaf3524bd2c1743cb9ae29a2deebff2ab28ec8ee486d

  • SHA512

    60b9907df14718d840fd1df91c5d97414d59998995bf74f1670122fc9b9db4b87430d9a74380b76e3bc54c1becf2b8c6eaefa1161b516cfc1a0e2bb490a0f9e4

  • SSDEEP

    3072:oUW8tX8pJePmxD++bWSi63LD6z2qoaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa3E:oitX87ePm1+8K67Moaaaaaaaaaaaaaap

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 2 IoCs

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

  • Blocklisted process makes network request 3 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 4 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\b0098664ec14d1368dcb7a06e9860f4e.xlsb
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2884
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic process call create 'mshta C:\ProgramData\jKYVUCAlHWPpFt.sct'
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of AdjustPrivilegeToken
      PID:2700
  • C:\Windows\system32\mshta.exe
    mshta C:\ProgramData\jKYVUCAlHWPpFt.sct
    1⤵
    • Process spawned unexpected child process
    • Blocklisted process makes network request
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    PID:2632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\jKYVUCAlHWPpFt.sct

    Filesize

    15KB

    MD5

    0d8024ef55556bc060e9e0005cb3e613

    SHA1

    20447da993a6a5a736023d83f596d983f2f59a27

    SHA256

    957c95efa7cd52f508d93fe406a4b01f7882c5f197caa76344622462b47e8b93

    SHA512

    5039aee6d3a4165ed323ec954365a1fa7fa67d21e582010d45e92a77135a523a6fd219cae49307038db0a8ed379f4c66219435d1ec9781b00f160d26cb0986e2

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    67KB

    MD5

    753df6889fd7410a2e9fe333da83a429

    SHA1

    3c425f16e8267186061dd48ac1c77c122962456e

    SHA256

    b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

    SHA512

    9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

  • C:\Users\Admin\AppData\Local\Temp\Tar4FBD.tmp

    Filesize

    175KB

    MD5

    dd73cead4b93366cf3465c8cd32e2796

    SHA1

    74546226dfe9ceb8184651e920d1dbfb432b314e

    SHA256

    a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

    SHA512

    ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

  • memory/2884-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2884-1-0x0000000071E6D000-0x0000000071E78000-memory.dmp

    Filesize

    44KB

  • memory/2884-57-0x0000000071E6D000-0x0000000071E78000-memory.dmp

    Filesize

    44KB

  • memory/2884-60-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2884-61-0x0000000071E6D000-0x0000000071E78000-memory.dmp

    Filesize

    44KB