Analysis

  • max time kernel
    165s
  • max time network
    98s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    04/12/2022, 00:51

General

  • Target

    b8c741c7b9caaf2b25023336ba377523cf0214937abb90b375b49fd50466dff5.exe

  • Size

    132KB

  • MD5

    023d9b98534c5d2705a001ada332357c

  • SHA1

    57a116d210a5aec5474a9533cb027b42f8d8810a

  • SHA256

    b8c741c7b9caaf2b25023336ba377523cf0214937abb90b375b49fd50466dff5

  • SHA512

    cc3397cb876d47457d372c23bc82f758c47edff548fab112d41d71972275059453ec11be8ba2b1d1871c63988e249c3f265ba889c6fc0117087885c2caef68d2

  • SSDEEP

    3072:yfrRcYbtX6RzvyuOi89Sey1AtWZXl7miWmn/Ao1:yf2OtX6RzvyuOQe7WbScA

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 51 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b8c741c7b9caaf2b25023336ba377523cf0214937abb90b375b49fd50466dff5.exe
    "C:\Users\Admin\AppData\Local\Temp\b8c741c7b9caaf2b25023336ba377523cf0214937abb90b375b49fd50466dff5.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1152
    • C:\Users\Admin\vuoobem.exe
      "C:\Users\Admin\vuoobem.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1376

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\vuoobem.exe

    Filesize

    132KB

    MD5

    1c0d6bd60a022b3bbfd6571081bdf42b

    SHA1

    077113c2c49aaf3b02752d74a005b86604d08591

    SHA256

    06a5110d56067be3f2bfb22ede1f301841dbc8771f5c7b4938b8eca37a3007ca

    SHA512

    793ebe2a7b534db67d4fd5bf732355189709c3b87075b3871764035a228eac8e7415b3687b02bbca8d3c0ff7f10d5c1a228bccf30ecac18f1873bc7c6d2635c9

  • C:\Users\Admin\vuoobem.exe

    Filesize

    132KB

    MD5

    1c0d6bd60a022b3bbfd6571081bdf42b

    SHA1

    077113c2c49aaf3b02752d74a005b86604d08591

    SHA256

    06a5110d56067be3f2bfb22ede1f301841dbc8771f5c7b4938b8eca37a3007ca

    SHA512

    793ebe2a7b534db67d4fd5bf732355189709c3b87075b3871764035a228eac8e7415b3687b02bbca8d3c0ff7f10d5c1a228bccf30ecac18f1873bc7c6d2635c9

  • \Users\Admin\vuoobem.exe

    Filesize

    132KB

    MD5

    1c0d6bd60a022b3bbfd6571081bdf42b

    SHA1

    077113c2c49aaf3b02752d74a005b86604d08591

    SHA256

    06a5110d56067be3f2bfb22ede1f301841dbc8771f5c7b4938b8eca37a3007ca

    SHA512

    793ebe2a7b534db67d4fd5bf732355189709c3b87075b3871764035a228eac8e7415b3687b02bbca8d3c0ff7f10d5c1a228bccf30ecac18f1873bc7c6d2635c9

  • \Users\Admin\vuoobem.exe

    Filesize

    132KB

    MD5

    1c0d6bd60a022b3bbfd6571081bdf42b

    SHA1

    077113c2c49aaf3b02752d74a005b86604d08591

    SHA256

    06a5110d56067be3f2bfb22ede1f301841dbc8771f5c7b4938b8eca37a3007ca

    SHA512

    793ebe2a7b534db67d4fd5bf732355189709c3b87075b3871764035a228eac8e7415b3687b02bbca8d3c0ff7f10d5c1a228bccf30ecac18f1873bc7c6d2635c9

  • memory/1152-56-0x0000000075881000-0x0000000075883000-memory.dmp

    Filesize

    8KB