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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/01/2024, 10:34

General

  • Target

    5638b043aa06063b079dac573f299ad2.exe

  • Size

    134KB

  • MD5

    5638b043aa06063b079dac573f299ad2

  • SHA1

    e7430d4c7300649ff444dc23c843c988d6a9eb2f

  • SHA256

    72ef83852f03200f03bae089bb30db36df75fbece2b53c83f0a92bfe04dd74d5

  • SHA512

    ef30b709503580bc66a57b87368ebbddfe9a3ad5a0ec39d2c8b6e0632b9c38b3a345cffc199d60725fd8dccfa0324f47c3e6311f27bbbf0625bcdfffea583654

  • SSDEEP

    3072:3nOn7t7XpdpCCTg/sxFgJseq8KFCMOPRyQEYiT/33A4IR3qTnoxJkCH:3KpdcCrTv8KwPPRF6bAPWoxJkCH

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\5638b043aa06063b079dac573f299ad2.exe
    "C:\Users\Admin\AppData\Local\Temp\5638b043aa06063b079dac573f299ad2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3052
    • C:\Users\Admin\AppData\Local\Temp\nsn418F.tmp\downloadmr.exe
      C:\Users\Admin\AppData\Local\Temp\nsn418F.tmp\downloadmr.exe /e2836122 /u4f96c0af-ae48-469a-a08c-2bb95bc06f2f
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      PID:5068

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsn418F.tmp\System.dll

    Filesize

    21KB

    MD5

    5ebc73650256e9c8ddbcda231db829a1

    SHA1

    988d4535e18754ab2a6248abae96c5697d7dbcd5

    SHA256

    1eaa543842df7795404184e8892a1654b0773dbc9bd8b54c7fdb9e68f4355493

    SHA512

    b21266e76fc7263af982a1336a766e47ccf348ed56b305dbb09f03574c9b2a7309f12200e80d86f9a251381be6e87a41206447f11c51899cb31fba10da1d5270

  • C:\Users\Admin\AppData\Local\Temp\nsn418F.tmp\downloadmr.exe

    Filesize

    135KB

    MD5

    fb753ca8f8abe185c761c5a729552f05

    SHA1

    d87aeac1b5c45792997dd6da20687c2a60072665

    SHA256

    d9b21b59169dc040c604bf10bf53521633fbe54911a32ae9ea78136297f3c454

    SHA512

    271be08c81bc23ecf3ab0c6355f7c171cbd227b773b1cde3ff6389ea01246952bee4d8c213f4e2428ff6f62510dfbe609c66f079e0d4b03c148894989061ac15

  • memory/3052-34-0x0000000000400000-0x000000000043D000-memory.dmp

    Filesize

    244KB

  • memory/5068-13-0x0000000074A80000-0x0000000075031000-memory.dmp

    Filesize

    5.7MB

  • memory/5068-15-0x0000000074A80000-0x0000000075031000-memory.dmp

    Filesize

    5.7MB

  • memory/5068-14-0x0000000001150000-0x0000000001160000-memory.dmp

    Filesize

    64KB

  • memory/5068-27-0x0000000001150000-0x0000000001160000-memory.dmp

    Filesize

    64KB

  • memory/5068-26-0x0000000001150000-0x0000000001160000-memory.dmp

    Filesize

    64KB

  • memory/5068-28-0x0000000001150000-0x0000000001160000-memory.dmp

    Filesize

    64KB

  • memory/5068-30-0x0000000074A80000-0x0000000075031000-memory.dmp

    Filesize

    5.7MB