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Overview

overview

8

Static

static

34361cf807...63.exe

windows7-x64

8

34361cf807...63.exe

windows10-2004-x64

3

Analysis

  • max time kernel
    252s
  • max time network
    337s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23/11/2022, 22:52

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General

  • Target

    34361cf80748be0bcb94979d53edffc310133ff0395961c2d275191f0b2e8063.exe

  • Size

    335KB

  • MD5

    43e57c26c4cb3fe4b530f2aa52ca847b

  • SHA1

    abffca46107bf45051aba25a905222aa11ed8814

  • SHA256

    34361cf80748be0bcb94979d53edffc310133ff0395961c2d275191f0b2e8063

  • SHA512

    a5628c400430b3b66e42feb6edcb9fbe814319d2dae6877c46d7c40e6c0bdeb664c0300987ef4b7ff58b52f2c349bb5db924aa9e9dbb64f24630dd831082d3e2

  • SSDEEP

    6144:1VkvFYM8ZNa9tbpo72PYNzuLunzPIInoM4tiDdPzERzrvPVza3:1VaYM8Kfq2GzuKzPIIoM4sdsvs3

Score
8/10
persistence

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Kills process with taskkill 1 IoCs
    evasion
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\34361cf80748be0bcb94979d53edffc310133ff0395961c2d275191f0b2e8063.exe
    "C:\Users\Admin\AppData\Local\Temp\34361cf80748be0bcb94979d53edffc310133ff0395961c2d275191f0b2e8063.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:540
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 540 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\34361cf80748be0bcb94979d53edffc310133ff0395961c2d275191f0b2e8063.exe" & start C:\Users\Admin\AppData\Local\NBFQUC~1.EXE -f
      2⤵
      • Deletes itself
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1488
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /pid 540
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:688
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 3 127.1
        3⤵
        • Runs ping.exe
        PID:1776
      • C:\Users\Admin\AppData\Local\nbfqucqio.exe
        C:\Users\Admin\AppData\Local\NBFQUC~1.EXE -f
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1748

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\nbfqucqio.exe
    Filesize

    335KB

    MD5

    43e57c26c4cb3fe4b530f2aa52ca847b

    SHA1

    abffca46107bf45051aba25a905222aa11ed8814

    SHA256

    34361cf80748be0bcb94979d53edffc310133ff0395961c2d275191f0b2e8063

    SHA512

    a5628c400430b3b66e42feb6edcb9fbe814319d2dae6877c46d7c40e6c0bdeb664c0300987ef4b7ff58b52f2c349bb5db924aa9e9dbb64f24630dd831082d3e2

    Download Submit

  • C:\Users\Admin\AppData\Local\nbfqucqio.exe
    Filesize

    335KB

    MD5

    43e57c26c4cb3fe4b530f2aa52ca847b

    SHA1

    abffca46107bf45051aba25a905222aa11ed8814

    SHA256

    34361cf80748be0bcb94979d53edffc310133ff0395961c2d275191f0b2e8063

    SHA512

    a5628c400430b3b66e42feb6edcb9fbe814319d2dae6877c46d7c40e6c0bdeb664c0300987ef4b7ff58b52f2c349bb5db924aa9e9dbb64f24630dd831082d3e2

    Download Submit

  • \Users\Admin\AppData\Local\nbfqucqio.exe
    Filesize

    335KB

    MD5

    43e57c26c4cb3fe4b530f2aa52ca847b

    SHA1

    abffca46107bf45051aba25a905222aa11ed8814

    SHA256

    34361cf80748be0bcb94979d53edffc310133ff0395961c2d275191f0b2e8063

    SHA512

    a5628c400430b3b66e42feb6edcb9fbe814319d2dae6877c46d7c40e6c0bdeb664c0300987ef4b7ff58b52f2c349bb5db924aa9e9dbb64f24630dd831082d3e2

    Download Submit

  • \Users\Admin\AppData\Local\nbfqucqio.exe
    Filesize

    335KB

    MD5

    43e57c26c4cb3fe4b530f2aa52ca847b

    SHA1

    abffca46107bf45051aba25a905222aa11ed8814

    SHA256

    34361cf80748be0bcb94979d53edffc310133ff0395961c2d275191f0b2e8063

    SHA512

    a5628c400430b3b66e42feb6edcb9fbe814319d2dae6877c46d7c40e6c0bdeb664c0300987ef4b7ff58b52f2c349bb5db924aa9e9dbb64f24630dd831082d3e2

    Download Submit

  • \Users\Admin\AppData\Local\nbfqucqio.exe
    Filesize

    335KB

    MD5

    43e57c26c4cb3fe4b530f2aa52ca847b

    SHA1

    abffca46107bf45051aba25a905222aa11ed8814

    SHA256

    34361cf80748be0bcb94979d53edffc310133ff0395961c2d275191f0b2e8063

    SHA512

    a5628c400430b3b66e42feb6edcb9fbe814319d2dae6877c46d7c40e6c0bdeb664c0300987ef4b7ff58b52f2c349bb5db924aa9e9dbb64f24630dd831082d3e2

    Download Submit

  • memory/540-57-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

    Download

  • memory/540-54-0x00000000002B0000-0x00000000002B3000-memory.dmp

    Filesize

    12KB

    Download

  • memory/540-55-0x0000000075551000-0x0000000075553000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1748-67-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

    Download

  • memory/1748-68-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

    Download