Analysis

  • max time kernel
    209s
  • max time network
    223s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/01/2024, 06:22

General

  • Target

    4fd19e172f2d1b6bd0f7406b89a55e73.exe

  • Size

    187KB

  • MD5

    4fd19e172f2d1b6bd0f7406b89a55e73

  • SHA1

    a068836eb57ecbf80dc407f385e55fa79edc1494

  • SHA256

    ce6abe055604dd9ecf00f16270f702cf5cde0937321213c458af03cc12e3331c

  • SHA512

    0c45494d1b5698c9c19831cbab24b8924b3b5a5ffb325fdb7c55c3892e5c11304288c2aa76f27a0d76cc6f56a710c24bb2af13219d3ea3d29eca49a4a35d7150

  • SSDEEP

    3072:DNdo5/O8yhtFKGnWkkJRrbXjDb7bDl3wDzTKFhe0y2/RXLU99q:xlrhtFKGWrbXjPAzTKFN9pXD

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

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

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

  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4fd19e172f2d1b6bd0f7406b89a55e73.exe
    "C:\Users\Admin\AppData\Local\Temp\4fd19e172f2d1b6bd0f7406b89a55e73.exe"
    1⤵
    • Drops file in Drivers directory
    • Checks computer location settings
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4232
    • C:\Users\Admin\AppData\Local\dplaysvr.exe
      "C:\Users\Admin\AppData\Local\dplaysvr.exe" C:\Users\Admin\AppData\Local\Temp\4fd19e172f2d1b6bd0f7406b89a55e73.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      PID:548
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{3AD05575-8857-4850-9277-11B85BDB8E09}
    1⤵
      PID:1324

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\7308.tmp

      Filesize

      94KB

      MD5

      677928162cce5f9b485cfb5fca5b33e2

      SHA1

      971edab96730263b1d828c184091319359fd0f24

      SHA256

      779ca161ee4256fcf88ba41a71002fdcce609378a9ea0169ebc306cd54f96f21

      SHA512

      6168e5b3f4a13e42038867d79aca1b648f0177f4c4749e03360a89c9ac14657ae57ea086fd9071e1ebbb1a870f5f5692ddf6879ce2b10bc9972face6032427df

    • C:\Users\Admin\AppData\Local\Temp\7309.tmp

      Filesize

      16KB

      MD5

      b4ee34fe10251a176083d4cf77a38710

      SHA1

      d2022a54da11c83a00cad689541ada063f361931

      SHA256

      12ad8b25d072a355bc5936566d9e6325ba2e51df0daa1a35b10e5c9d9014f0a1

      SHA512

      319a83a2ea3ba9bc8a7c13e06dedd1327d47caf1873b14c7dba2f038a425dfc055b4415d2490ad462739b343ecac4b09e3578f0f94bda56d8dfb6ff838e63f18

    • C:\Users\Admin\AppData\Local\Temp\730B.tmp

      Filesize

      882B

      MD5

      d9dc78b1be3d670726c00679c7f3b14b

      SHA1

      b269e7e97ea12365a39a3037b9e7c7561019d0ff

      SHA256

      5fdd84fdbb9a3cbd2e70232d0c8d8ecbe9b25dabafbaa48a341c27b01057f041

      SHA512

      89e00860d64bd21ba33985087a1fdde2f33e762fd5eecf812e68d45a9f81e36a7d6cafabc0a4aac4d48abe32e64bc12cb45f6f10bcf44ff9c2beaedb51a20681

    • memory/548-28-0x0000000002080000-0x000000000209D000-memory.dmp

      Filesize

      116KB

    • memory/548-35-0x0000000000400000-0x0000000000411000-memory.dmp

      Filesize

      68KB

    • memory/548-46-0x00000000022A0000-0x0000000002302000-memory.dmp

      Filesize

      392KB

    • memory/548-45-0x00000000022A0000-0x000000000233D000-memory.dmp

      Filesize

      628KB

    • memory/548-27-0x00000000005C0000-0x00000000005D1000-memory.dmp

      Filesize

      68KB

    • memory/548-41-0x0000000000400000-0x0000000000411000-memory.dmp

      Filesize

      68KB

    • memory/548-29-0x0000000000400000-0x0000000000411000-memory.dmp

      Filesize

      68KB

    • memory/548-39-0x0000000002170000-0x0000000002171000-memory.dmp

      Filesize

      4KB

    • memory/548-37-0x0000000000400000-0x0000000000411000-memory.dmp

      Filesize

      68KB

    • memory/548-38-0x0000000077252000-0x0000000077253000-memory.dmp

      Filesize

      4KB

    • memory/4232-8-0x0000000000400000-0x000000000042C000-memory.dmp

      Filesize

      176KB

    • memory/4232-0-0x00000000021E0000-0x000000000220C000-memory.dmp

      Filesize

      176KB

    • memory/4232-42-0x0000000000400000-0x000000000042C000-memory.dmp

      Filesize

      176KB

    • memory/4232-1-0x0000000002210000-0x0000000002245000-memory.dmp

      Filesize

      212KB

    • memory/4232-2-0x0000000000400000-0x000000000042C000-memory.dmp

      Filesize

      176KB