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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/03/2024, 13:04

General

  • Target

    b777afa8c515a3deb45611907d350624.exe

  • Size

    312KB

  • MD5

    b777afa8c515a3deb45611907d350624

  • SHA1

    9e75245975c93fc166a693c9dcf5128529bb19c1

  • SHA256

    66a1fd5ad16c8abc8c00d795c26f66d01df55e3e6ca7568e6aed9724a73068d3

  • SHA512

    429902b42423a3c9cc9daa729816ce8ae03f5af57554a11f69a67e894d881ec14b766127885ffefc0709666387bafa4e7c5527b7cbfd49cf80e1ab5423943394

  • SSDEEP

    6144:lGS1Y9k1YS0m8z4By4u4QAGcZO3aijDSHXPzDd8tVxKxG1BrsFFeBOw3Sc8c0e8r:j1YgY1muRcOjIzDd8tLKxG1BrBfSXZ

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b777afa8c515a3deb45611907d350624.exe
    "C:\Users\Admin\AppData\Local\Temp\b777afa8c515a3deb45611907d350624.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4676
    • C:\ProgramData\bIfBbLkGjNb06511\bIfBbLkGjNb06511.exe
      "C:\ProgramData\bIfBbLkGjNb06511\bIfBbLkGjNb06511.exe" "C:\Users\Admin\AppData\Local\Temp\b777afa8c515a3deb45611907d350624.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:3248

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\bIfBbLkGjNb06511\bIfBbLkGjNb06511.exe

    Filesize

    312KB

    MD5

    2e457cf85716989322623ef1c21d8a09

    SHA1

    984cb9e7339b847abbf34f562671faaecbd14604

    SHA256

    2844ea2ad013dc1295b8a9d22590f01670268e946166d35e39994fba24345682

    SHA512

    0fa403767e49edca8186913e357b865f8b75559385a865c4eac7fb8108ab1583f9d14811817bb13bbc47c8452766910c091d85723330b4843da4214a4dc0146a

  • memory/3248-16-0x0000000000400000-0x0000000000503000-memory.dmp

    Filesize

    1.0MB

  • memory/3248-35-0x0000000000400000-0x0000000000503000-memory.dmp

    Filesize

    1.0MB

  • memory/3248-26-0x0000000000560000-0x0000000000561000-memory.dmp

    Filesize

    4KB

  • memory/3248-22-0x0000000000400000-0x0000000000503000-memory.dmp

    Filesize

    1.0MB

  • memory/3248-15-0x0000000000560000-0x0000000000561000-memory.dmp

    Filesize

    4KB

  • memory/3248-13-0x0000000000400000-0x0000000000503000-memory.dmp

    Filesize

    1.0MB

  • memory/3248-14-0x0000000000400000-0x0000000000503000-memory.dmp

    Filesize

    1.0MB

  • memory/4676-3-0x0000000000400000-0x0000000000503000-memory.dmp

    Filesize

    1.0MB

  • memory/4676-0-0x0000000000400000-0x0000000000503000-memory.dmp

    Filesize

    1.0MB

  • memory/4676-21-0x0000000000400000-0x0000000000503000-memory.dmp

    Filesize

    1.0MB

  • memory/4676-4-0x0000000000400000-0x0000000000503000-memory.dmp

    Filesize

    1.0MB

  • memory/4676-23-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/4676-2-0x00000000005E0000-0x00000000005E1000-memory.dmp

    Filesize

    4KB

  • memory/4676-1-0x0000000077E13000-0x0000000077E14000-memory.dmp

    Filesize

    4KB

  • memory/4676-42-0x0000000000400000-0x0000000000503000-memory.dmp

    Filesize

    1.0MB