Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/06/2024, 00:59

General

  • Target

    2024-06-11_62ef4dbce85c4872cbbad30360a501d4_bkransomware.exe

  • Size

    1.7MB

  • MD5

    62ef4dbce85c4872cbbad30360a501d4

  • SHA1

    1719ce1e13e14c24560f8556aab25af387112498

  • SHA256

    a3be9726b0600d5bc89cd809b17567cb573e0faeb7ab28a803e88bca3cc04afe

  • SHA512

    50ed2edf6559e4dc04134dd4d08ba5d1a1854c2dc150f5b5d5f9cf03ee1f0b179662f6bb667c7497bef722909555f9d2573146066b29d054eca3a83d0cbb9a1c

  • SSDEEP

    24576:M2lmh4Rt/TwSfVcYG3K/cJHlnFR+IGNe8j3Iz:M2Mh4RtLNiXicJFFRGNzj3

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-11_62ef4dbce85c4872cbbad30360a501d4_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-11_62ef4dbce85c4872cbbad30360a501d4_bkransomware.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:3520
  • C:\Windows\System32\alg.exe
    C:\Windows\System32\alg.exe
    1⤵
    • Executes dropped EXE
    PID:3256

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Windows\System32\alg.exe

    Filesize

    1.4MB

    MD5

    4b09816af09c96c497581ec29cc3be51

    SHA1

    7857f6c340c8a7bf50aceba2f5f043d56edaf4e2

    SHA256

    3a9c741ed2d0819541b168f43457e1de62fdee0b767190cf54294eb4a4a0b01f

    SHA512

    779156308ed6a7e6e135cb7b3b16904f8c3d70bbac1c3b83fd44bf3e98f2be4305252fee9722a1ce2d8d8435b41e4ec1132b6ab2e73f50f24bd2fbb71b6e3275

  • memory/3256-11-0x0000000140000000-0x000000014021B000-memory.dmp

    Filesize

    2.1MB

  • memory/3256-16-0x0000000140000000-0x000000014021B000-memory.dmp

    Filesize

    2.1MB

  • memory/3520-0-0x0000000000400000-0x0000000000677000-memory.dmp

    Filesize

    2.5MB

  • memory/3520-1-0x00000000007E0000-0x0000000000846000-memory.dmp

    Filesize

    408KB

  • memory/3520-6-0x00000000007E0000-0x0000000000846000-memory.dmp

    Filesize

    408KB

  • memory/3520-15-0x0000000000400000-0x0000000000677000-memory.dmp

    Filesize

    2.5MB