Analysis

  • max time kernel
    161s
  • max time network
    186s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 00:23

General

  • Target

    4758ce7fdf81da687b6cea9748f45fa3f31b5d9c11b4bc886dc389149b25c422.exe

  • Size

    128KB

  • MD5

    2ab1b19ae34c99354bab69025bf5f3a0

  • SHA1

    91bc941313140c00eaead07f799f312eee5bc82d

  • SHA256

    4758ce7fdf81da687b6cea9748f45fa3f31b5d9c11b4bc886dc389149b25c422

  • SHA512

    43438cfd47f5412158e9bb5ab79bd3220bf47f4f6b3fbb19c76160253089cd9142c89b06e19e6b0e8a7e07e374ffdb1768030a27a5725af36289421beb82b7e3

  • SSDEEP

    1536:G7kkbuIXVHKTU097h9QKz7SFlc4IE3IezPoVtTqtFyUoHnkHUS65BciuJ3mnXYt:akkbugKTU0bGKXmWAojqbdBJ2It

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 58 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\4758ce7fdf81da687b6cea9748f45fa3f31b5d9c11b4bc886dc389149b25c422.exe
    "C:\Users\Admin\AppData\Local\Temp\4758ce7fdf81da687b6cea9748f45fa3f31b5d9c11b4bc886dc389149b25c422.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:2036
    • C:\Users\Admin\fhmuap.exe
      "C:\Users\Admin\fhmuap.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:2000

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\fhmuap.exe

    Filesize

    128KB

    MD5

    6d99775418465a06d6be9de94502086d

    SHA1

    4c15e68d9e3228d19f4364fef2f33d373aaf9b52

    SHA256

    df6d941907d0dcc754b5190939c92acbc2b1777ac3490c6dd9b50ba99219b2e2

    SHA512

    fc24326b54acfe19ce28c4939b0b3eb57e7d1261ac86376a1f008e0d76db80da3959407666dd1d35e0c8cd97e12405656d2a81ce0412f62ee69064b96305c575

  • C:\Users\Admin\fhmuap.exe

    Filesize

    128KB

    MD5

    6d99775418465a06d6be9de94502086d

    SHA1

    4c15e68d9e3228d19f4364fef2f33d373aaf9b52

    SHA256

    df6d941907d0dcc754b5190939c92acbc2b1777ac3490c6dd9b50ba99219b2e2

    SHA512

    fc24326b54acfe19ce28c4939b0b3eb57e7d1261ac86376a1f008e0d76db80da3959407666dd1d35e0c8cd97e12405656d2a81ce0412f62ee69064b96305c575

  • \Users\Admin\fhmuap.exe

    Filesize

    128KB

    MD5

    6d99775418465a06d6be9de94502086d

    SHA1

    4c15e68d9e3228d19f4364fef2f33d373aaf9b52

    SHA256

    df6d941907d0dcc754b5190939c92acbc2b1777ac3490c6dd9b50ba99219b2e2

    SHA512

    fc24326b54acfe19ce28c4939b0b3eb57e7d1261ac86376a1f008e0d76db80da3959407666dd1d35e0c8cd97e12405656d2a81ce0412f62ee69064b96305c575

  • \Users\Admin\fhmuap.exe

    Filesize

    128KB

    MD5

    6d99775418465a06d6be9de94502086d

    SHA1

    4c15e68d9e3228d19f4364fef2f33d373aaf9b52

    SHA256

    df6d941907d0dcc754b5190939c92acbc2b1777ac3490c6dd9b50ba99219b2e2

    SHA512

    fc24326b54acfe19ce28c4939b0b3eb57e7d1261ac86376a1f008e0d76db80da3959407666dd1d35e0c8cd97e12405656d2a81ce0412f62ee69064b96305c575

  • memory/2000-59-0x0000000000000000-mapping.dmp

  • memory/2036-56-0x0000000076411000-0x0000000076413000-memory.dmp

    Filesize

    8KB