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Analysis

  • max time kernel
    168s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 04:45

General

  • Target

    28b843449cf168ac22608f1715b61b32.exe

  • Size

    134KB

  • MD5

    28b843449cf168ac22608f1715b61b32

  • SHA1

    f013739808010831887bc67d461fcfea2286e965

  • SHA256

    57b11f30f3aa01e4e997c8b38a731f9c215442643e2599292113c963839b9c63

  • SHA512

    9799e053224c64327eed876be84d1aa36e56fc57aa8ee03890e234e10542669751641f97fd5016d599cb66c84429ac8fb8b5b8c0594ca34789f03f287a64d027

  • SSDEEP

    3072:3nOn7t7XpdpCCTg/sxFgJceq8KrDCgJqgXq4a5u/bwiX9Zq/Xe:3KpdcCrTf8KaxgwujwiNZv

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\28b843449cf168ac22608f1715b61b32.exe
    "C:\Users\Admin\AppData\Local\Temp\28b843449cf168ac22608f1715b61b32.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1208
    • C:\Users\Admin\AppData\Local\Temp\nsuEB5C.tmp\downloadmr.exe
      C:\Users\Admin\AppData\Local\Temp\nsuEB5C.tmp\downloadmr.exe /e2292323 /u4db81fcb-20f4-42d4-8d8b-4c1f5bc06ebe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      PID:3344

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsuEB5C.tmp\System.dll

    Filesize

    21KB

    MD5

    5ebc73650256e9c8ddbcda231db829a1

    SHA1

    988d4535e18754ab2a6248abae96c5697d7dbcd5

    SHA256

    1eaa543842df7795404184e8892a1654b0773dbc9bd8b54c7fdb9e68f4355493

    SHA512

    b21266e76fc7263af982a1336a766e47ccf348ed56b305dbb09f03574c9b2a7309f12200e80d86f9a251381be6e87a41206447f11c51899cb31fba10da1d5270

  • memory/1208-27-0x0000000000400000-0x000000000043D000-memory.dmp

    Filesize

    244KB

  • memory/1208-28-0x000000006E3C0000-0x000000006E3CD000-memory.dmp

    Filesize

    52KB

  • memory/1208-35-0x0000000000400000-0x000000000043D000-memory.dmp

    Filesize

    244KB

  • memory/3344-13-0x0000000074260000-0x0000000074811000-memory.dmp

    Filesize

    5.7MB

  • memory/3344-15-0x0000000000E40000-0x0000000000E50000-memory.dmp

    Filesize

    64KB

  • memory/3344-14-0x0000000074260000-0x0000000074811000-memory.dmp

    Filesize

    5.7MB

  • memory/3344-25-0x0000000000E40000-0x0000000000E50000-memory.dmp

    Filesize

    64KB

  • memory/3344-24-0x0000000000E40000-0x0000000000E50000-memory.dmp

    Filesize

    64KB

  • memory/3344-26-0x0000000000E40000-0x0000000000E50000-memory.dmp

    Filesize

    64KB

  • memory/3344-29-0x0000000074260000-0x0000000074811000-memory.dmp

    Filesize

    5.7MB

  • memory/3344-31-0x0000000074260000-0x0000000074811000-memory.dmp

    Filesize

    5.7MB