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Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26/12/2023, 04:06

General

  • Target

    52d3db430bf0acf7b98e3cf60a419449.exe

  • Size

    142KB

  • MD5

    52d3db430bf0acf7b98e3cf60a419449

  • SHA1

    ffbe4448e1e9d0507bdc4c662a7aaa45fb41f0bf

  • SHA256

    6779e470f864e43d56f1c32f4ec69d23bbba07789f667903c0d843acccc1d92b

  • SHA512

    acd96029f61a8c310115d9decb93c616690fe7ce0c43e58e6b8b1437b6596af4e6ebf0c84fafb3e8292825276b0a4b87ec42aededdf655a1093b0e5df62d056b

  • SSDEEP

    3072:inOn7t7XpdpCCTg/sxFgJ6eqgKJ+BCJC8+Z/TAFZqlzvgYu:iKpdcCrTdgKY8k/TUgl0d

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\52d3db430bf0acf7b98e3cf60a419449.exe
    "C:\Users\Admin\AppData\Local\Temp\52d3db430bf0acf7b98e3cf60a419449.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Users\Admin\AppData\Local\Temp\nsi5562.tmp\downloadmr.exe
      C:\Users\Admin\AppData\Local\Temp\nsi5562.tmp\downloadmr.exe /u4f96c0af-ae48-469a-a08c-2bb95bc06f2f /e2832206
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nsi5562.tmp\System.dll

    Filesize

    21KB

    MD5

    5ebc73650256e9c8ddbcda231db829a1

    SHA1

    988d4535e18754ab2a6248abae96c5697d7dbcd5

    SHA256

    1eaa543842df7795404184e8892a1654b0773dbc9bd8b54c7fdb9e68f4355493

    SHA512

    b21266e76fc7263af982a1336a766e47ccf348ed56b305dbb09f03574c9b2a7309f12200e80d86f9a251381be6e87a41206447f11c51899cb31fba10da1d5270

  • \Users\Admin\AppData\Local\Temp\nsi5562.tmp\downloadmr.exe

    Filesize

    122KB

    MD5

    da254a8488b60244654e1cf4d6796cf8

    SHA1

    23d06f4589786652a3a226b5012a5520a3d03452

    SHA256

    6d3b82a7ad74a1e88ae4d0f9176082130f1558fb3ff42a8b45ca8b80445efc2d

    SHA512

    d311f90ad65441f6c7ae55220c2c3f117aa7601d083e6847e1b58b96c3c332d68a25d445310818396dc88678fb9ec5356f35a04a392c3d23746a2231e14b0a2e

  • \Users\Admin\AppData\Local\Temp\nsi5562.tmp\downloadmr.exe

    Filesize

    99KB

    MD5

    880daf7c97dfda0068ef351785de7935

    SHA1

    d96a329e756459018f5212ee627333fa6b224dcd

    SHA256

    134b227dd9a5ce0accb308f0cd7c9b747b314e8bf5ee118dce7abc75db914983

    SHA512

    527e3f39bd57abe6000460a9a1b0b9edb4412e7a6d35854c7297af91383f2dbdd59dfbf5770648666fba27da1a3751713e527eea8ce7e624301944582724e26a

  • memory/1200-29-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/2736-18-0x0000000073FA0000-0x000000007454B000-memory.dmp

    Filesize

    5.7MB

  • memory/2736-19-0x0000000073FA0000-0x000000007454B000-memory.dmp

    Filesize

    5.7MB

  • memory/2736-20-0x0000000001F60000-0x0000000001FA0000-memory.dmp

    Filesize

    256KB

  • memory/2736-21-0x0000000001F60000-0x0000000001FA0000-memory.dmp

    Filesize

    256KB

  • memory/2736-22-0x0000000001F60000-0x0000000001FA0000-memory.dmp

    Filesize

    256KB

  • memory/2736-23-0x0000000001F60000-0x0000000001FA0000-memory.dmp

    Filesize

    256KB

  • memory/2736-24-0x00000000061B0000-0x00000000062B0000-memory.dmp

    Filesize

    1024KB

  • memory/2736-25-0x0000000073FA0000-0x000000007454B000-memory.dmp

    Filesize

    5.7MB