Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-03-2024 02:48

General

  • Target

    b022b36862b56d9da2303ffcbb4a67ab.xlsb

  • Size

    342KB

  • MD5

    b022b36862b56d9da2303ffcbb4a67ab

  • SHA1

    e3af13c011041ca7acbe9c72f1307cf83d8fdc1e

  • SHA256

    999c5f5c362b730f9abaf43fe6f8a8e162c0f98ff9523f2e3fc22698ab5acb09

  • SHA512

    e19c5bb29872ae131f4fa1a85d336d71c62075df0edba75b7a9fca87d7e029113e1020663ee025af5520b9fc01cb381fdffe3f0f8bfd1fc7cf5525d7f0268592

  • SSDEEP

    6144:oWD8oGJwuWXO/J6t/VYfASkKTzZYwPMPFde/Qxx2u+OA+NT5AQ:F8v6X7ifASkKTzSwkPFduQx0uD+Q

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
  • 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 42 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 2 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\b022b36862b56d9da2303ffcbb4a67ab.xlsb"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2528
    • C:\Windows\System32\Wbem\wmic.exe
      wmic process call create 'mshta C:\ProgramData\KaViuVRDAQxr.sct'
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of AdjustPrivilegeToken
      PID:5024
  • C:\Windows\system32\mshta.exe
    mshta C:\ProgramData\KaViuVRDAQxr.sct
    1⤵
    • Process spawned unexpected child process
    • Blocklisted process makes network request
    PID:3332

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\KaViuVRDAQxr.sct

    Filesize

    15KB

    MD5

    9c84993db8519b015d37996f6332854e

    SHA1

    bc56c1e1f613573a22dcd879f918dcf122c6511e

    SHA256

    acc2c8056f1d88db7051b3c636aa8c384d2f8482e6045c95be9826fb4b160041

    SHA512

    e697acc4e0b2f243568e852b6646ccb15ded41f7553c6d19784139d1101f4892f96711e14785d640bee163a5febcb91ee4cad1a64b835bb2f08603fb7716260c

  • memory/2528-8-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-0-0x00007FFA319B0000-0x00007FFA319C0000-memory.dmp

    Filesize

    64KB

  • memory/2528-2-0x00007FFA319B0000-0x00007FFA319C0000-memory.dmp

    Filesize

    64KB

  • memory/2528-17-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-5-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-6-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-7-0x00007FFA319B0000-0x00007FFA319C0000-memory.dmp

    Filesize

    64KB

  • memory/2528-18-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-9-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-10-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-12-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-13-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-14-0x00007FFA2F150000-0x00007FFA2F160000-memory.dmp

    Filesize

    64KB

  • memory/2528-19-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-15-0x00007FFA2F150000-0x00007FFA2F160000-memory.dmp

    Filesize

    64KB

  • memory/2528-16-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-4-0x00007FFA319B0000-0x00007FFA319C0000-memory.dmp

    Filesize

    64KB

  • memory/2528-3-0x00007FFA319B0000-0x00007FFA319C0000-memory.dmp

    Filesize

    64KB

  • memory/2528-11-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-20-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-21-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-22-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-23-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-1-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-42-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-43-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-59-0x00007FFA319B0000-0x00007FFA319C0000-memory.dmp

    Filesize

    64KB

  • memory/2528-60-0x00007FFA319B0000-0x00007FFA319C0000-memory.dmp

    Filesize

    64KB

  • memory/2528-61-0x00007FFA319B0000-0x00007FFA319C0000-memory.dmp

    Filesize

    64KB

  • memory/2528-63-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-65-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-64-0x00007FFA71930000-0x00007FFA71B25000-memory.dmp

    Filesize

    2.0MB

  • memory/2528-62-0x00007FFA319B0000-0x00007FFA319C0000-memory.dmp

    Filesize

    64KB