Analysis

  • max time kernel
    11s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-12-2023 13:06

General

  • Target

    20799bc55b8c1ce917f3ccf363b6e5dc.exe

  • Size

    48KB

  • MD5

    20799bc55b8c1ce917f3ccf363b6e5dc

  • SHA1

    8d56851f7d9fa6bb8e79961da2bebaaae23893f6

  • SHA256

    75e5cc4a0b07d6ebe301388cb75527b992ce4cd1bd224fe7e6d6e63fbabefd89

  • SHA512

    9e4471c856cf5e1e941983016964524eb09b2b688f681ccd4f118a99547ba78135a2f5b774e04da84eef2d8aca0b19feee4643f7e34249ae8e408cca494c673e

  • SSDEEP

    768:wGxG8ftqr1Hq4nbAyUilCamQV2YlyW4Xw9cxK9uN3UAC8wTreLXP:wcrftqr1HXpUizCWPcxx/zAeLXP

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Drops file in System32 directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20799bc55b8c1ce917f3ccf363b6e5dc.exe
    "C:\Users\Admin\AppData\Local\Temp\20799bc55b8c1ce917f3ccf363b6e5dc.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3940
    • C:\Users\Admin\AppData\Local\Temp\abs.exe
      "C:\Users\Admin\AppData\Local\Temp\abs.exe" C:\Users\Admin\AppData\Local\Temp\20799bc55b8c1ce917f3ccf363b6e5dc.exe C:\Users\Admin\AppData\Local\Temp\20799bc55b8c1ce917f3ccf363b6e5dc.doc
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1440
    • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\20799bc55b8c1ce917f3ccf363b6e5dc.doc" /o ""
      2⤵
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:5012
    • C:\Users\Admin\AppData\Local\Temp\kernel32.exe
      "C:\Users\Admin\AppData\Local\Temp\kernel32.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:4016
  • C:\Windows\SysWOW64\kernel32.exe
    C:\Windows\SysWOW64\kernel32.exe -k netsvcs
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:60
  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:616

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\20799bc55b8c1ce917f3ccf363b6e5dc.doc

      Filesize

      20KB

      MD5

      e34eea040e37629191291d77591e93ec

      SHA1

      c53623b4b5b6e1c6fb2cd3444b57d4854a261db1

      SHA256

      3086b360e0cd9d7ddf3e04f099d50a392325e7378821fe21d6ccb16eff4bec95

      SHA512

      e66372b178f6aab2247b47ecf8bee0fcd75504fbf7ba26e7d2c7fced0fa69add605adf0ab0073105dc7811ee11d6ac848335af4e158de74d21e29874c7bd18a1

    • C:\Users\Admin\AppData\Local\Temp\abs.exe

      Filesize

      48KB

      MD5

      20799bc55b8c1ce917f3ccf363b6e5dc

      SHA1

      8d56851f7d9fa6bb8e79961da2bebaaae23893f6

      SHA256

      75e5cc4a0b07d6ebe301388cb75527b992ce4cd1bd224fe7e6d6e63fbabefd89

      SHA512

      9e4471c856cf5e1e941983016964524eb09b2b688f681ccd4f118a99547ba78135a2f5b774e04da84eef2d8aca0b19feee4643f7e34249ae8e408cca494c673e

    • C:\Users\Admin\AppData\Local\Temp\kernel32.exe

      Filesize

      14KB

      MD5

      7cb65bc64fc13cf8bf95a1ff220c784e

      SHA1

      a54ad63f33ae7bc6bd19de627c8d3ba9293d5740

      SHA256

      4bebee57f3ca48df6a8ece900954484905a67aaa1806ff65933ba94f61c4f539

      SHA512

      7ca01662c1f2407d7555d0de8113f9945a58047a928a8569649ca7968a683cc1070b319c9de6a2655da80b1cd75c6fc5f806b69acd59c505273b4269cea57790

    • memory/60-70-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB

    • memory/60-58-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB

    • memory/1440-45-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/1440-41-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/3940-30-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/3940-0-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/4016-61-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB

    • memory/4016-10-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB

    • memory/5012-42-0x00007FFBBF390000-0x00007FFBBF3A0000-memory.dmp

      Filesize

      64KB

    • memory/5012-34-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-43-0x00007FFBBF390000-0x00007FFBBF3A0000-memory.dmp

      Filesize

      64KB

    • memory/5012-36-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-35-0x00007FFBC1CF0000-0x00007FFBC1D00000-memory.dmp

      Filesize

      64KB

    • memory/5012-33-0x00007FFBC1CF0000-0x00007FFBC1D00000-memory.dmp

      Filesize

      64KB

    • memory/5012-31-0x00007FFBC1CF0000-0x00007FFBC1D00000-memory.dmp

      Filesize

      64KB

    • memory/5012-29-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-27-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-39-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-19-0x00007FFBC1CF0000-0x00007FFBC1D00000-memory.dmp

      Filesize

      64KB

    • memory/5012-37-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-38-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-40-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-32-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-69-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-28-0x00007FFBC1CF0000-0x00007FFBC1D00000-memory.dmp

      Filesize

      64KB

    • memory/5012-71-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-91-0x00007FFBC1CF0000-0x00007FFBC1D00000-memory.dmp

      Filesize

      64KB

    • memory/5012-92-0x00007FFBC1CF0000-0x00007FFBC1D00000-memory.dmp

      Filesize

      64KB

    • memory/5012-95-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-96-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-94-0x00007FFBC1CF0000-0x00007FFBC1D00000-memory.dmp

      Filesize

      64KB

    • memory/5012-93-0x00007FFC01C70000-0x00007FFC01E65000-memory.dmp

      Filesize

      2.0MB

    • memory/5012-90-0x00007FFBC1CF0000-0x00007FFBC1D00000-memory.dmp

      Filesize

      64KB