Analysis

  • max time kernel
    140s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    12-03-2024 18:33

General

  • Target

    c40ff7d4fbae3ba144f8739f7a7c2035.exe

  • Size

    1003KB

  • MD5

    c40ff7d4fbae3ba144f8739f7a7c2035

  • SHA1

    34683380e66e19640d89dd5e48c98d0e582c4b45

  • SHA256

    dcefe181389e4bbae16b0a5b0a9f705819c087f9afff15a797f4778af0e9757e

  • SHA512

    6d94b7aa2e17ecfc0d5fefac229d508724481567e0f2fd1ca4edeaa1bd37d2eb0b234aa92cf029a74158048acbf315dfbed4a182c669baef6ff4b83cb34fb855

  • SSDEEP

    24576:kNEIrnsALyscY1oqAacVonPHke5gEgKjwnS:kNE4nsAescPqAacVekV1KjwnS

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c40ff7d4fbae3ba144f8739f7a7c2035.exe
    "C:\Users\Admin\AppData\Local\Temp\c40ff7d4fbae3ba144f8739f7a7c2035.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1836
    • C:\Users\Admin\AppData\Local\Temp\c40ff7d4fbae3ba144f8739f7a7c2035.exe
      C:\Users\Admin\AppData\Local\Temp\c40ff7d4fbae3ba144f8739f7a7c2035.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1884
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\c40ff7d4fbae3ba144f8739f7a7c2035.exe" /TN ZBrUCVBB2555 /F
        3⤵
        • Creates scheduled task(s)
        PID:2488
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN ZBrUCVBB2555 > C:\Users\Admin\AppData\Local\Temp\ISEtZQiFo.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2472
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN ZBrUCVBB2555
          4⤵
            PID:2388

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\ISEtZQiFo.xml

      Filesize

      1KB

      MD5

      38fd129f88a6c99621460e60cc34bec5

      SHA1

      868a2be1655f61618ed7e6dfa1e181635e827ee8

      SHA256

      327528d8bc4506422677c86b7c186ba546c3770aae5eaa21916d8fb178c02d1c

      SHA512

      75e4ab01c427d2f5d667abb5c459ac90a882426dd1bf516dd0faa3ab201df544427dfaf2ac54e152a0d4ab0a0bdd411820f299bdfae24c0b68650085a9b976c4

    • C:\Users\Admin\AppData\Local\Temp\c40ff7d4fbae3ba144f8739f7a7c2035.exe

      Filesize

      898KB

      MD5

      f6fcaaf28dc6635117a8c0dd4ef639f5

      SHA1

      75642d3f0e7fc6025b765339e4420e154effdb5c

      SHA256

      c7dd411b39a1461eb341ee66c7c9a76f1e3c7f37798e3918ce331861e530075c

      SHA512

      5961e68148abbb2c2c47d2235d106a258694da49c1461cd63bcd25179e52f79e6280317dacd6bed633bb7356938fe1316dc018943341c82d0a45bc3eaa9b5a46

    • \Users\Admin\AppData\Local\Temp\c40ff7d4fbae3ba144f8739f7a7c2035.exe

      Filesize

      1003KB

      MD5

      02401133061bde4df435320e41f0cb21

      SHA1

      b1c7183fcead8dda29917e034025d8fea41b9513

      SHA256

      f35d5d69844df25471123cb4e8197442c267df044b3e5e6074cb512ab2de4222

      SHA512

      33324d090a04d03cd7363fb5377fcc58684427c27670cede032654469f05b0e1b67c5f3367340cdd5a5fb6d17a5197efac0eb0a8c821255640450ba40e7703b3

    • memory/1836-1-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/1836-6-0x0000000000240000-0x00000000002BE000-memory.dmp

      Filesize

      504KB

    • memory/1836-17-0x0000000022FA0000-0x00000000231FC000-memory.dmp

      Filesize

      2.4MB

    • memory/1836-0-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/1836-16-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/1884-19-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/1884-26-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/1884-31-0x0000000000470000-0x00000000004DB000-memory.dmp

      Filesize

      428KB

    • memory/1884-21-0x0000000001660000-0x00000000016DE000-memory.dmp

      Filesize

      504KB

    • memory/1884-53-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB