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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2024, 13:52

General

  • Target

    Respecialist.exe

  • Size

    826KB

  • MD5

    bcc1f12af6334f819cac261f50fc6f3f

  • SHA1

    68ef28761831b5ce423b174549f78843a8ffcbaa

  • SHA256

    cadc8838c26a906f9dd9cfed178546e322f67f714d4951169482d781a07ffc98

  • SHA512

    77512f726964cb995f830bfab6aa7fbec3b3a5b270b08d57d4a0395a570aa5c3b6b3185bce9bb6baf4ccafcd6260a2a514282ec45f65d6ab93dac7ac5cda4f4f

  • SSDEEP

    12288:zgOiqjFiNnytiTYG8ERU8Nsb9uF/5MkQ5HOKBAUhtHuuU69E:zgYFyy4c1EdsDOSAUbPR9E

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Respecialist.exe
    "C:\Users\Admin\AppData\Local\Temp\Respecialist.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    PID:5060
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 1216
      2⤵
      • Program crash
      PID:4628
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5060 -ip 5060
    1⤵
      PID:4996

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\nss3FDA.tmp\Spahees99.lnk

      Filesize

      1KB

      MD5

      f1f16b26118b724f4910eafc510c34a8

      SHA1

      441134248af49bb599f8a888351d6da4190a440a

      SHA256

      8e3b7e7eb6a25038a1b81efec4c2e6b364b8950462c314cfd9553bdd0a2347c4

      SHA512

      670dc79cc7cfef897e1638c43d75d8e3c107bd9619aa8f45a7871acbdb9f954fa635214c9608ebf5462ca5824f1adb4474ce66beaaa2e356290ce64c788234ac

    • C:\Users\Admin\AppData\Local\Temp\nss3FDA.tmp\System.dll

      Filesize

      12KB

      MD5

      0d7ad4f45dc6f5aa87f606d0331c6901

      SHA1

      48df0911f0484cbe2a8cdd5362140b63c41ee457

      SHA256

      3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

      SHA512

      c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

    • memory/5060-287-0x00000000778C1000-0x00000000779E1000-memory.dmp

      Filesize

      1.1MB