Analysis

  • max time kernel
    141s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    12-03-2024 15:25

General

  • Target

    c3b3e606509feb13c4ac729cb418cbe6.exe

  • Size

    3.9MB

  • MD5

    c3b3e606509feb13c4ac729cb418cbe6

  • SHA1

    65d2f50295f99ecd9175b4d693e31aa8743540fe

  • SHA256

    09ba5401dca6976ed4bf55cae47b2b2f489829e329ad8a573120f5584a9872cb

  • SHA512

    94fe6ddd1dc56783051be880be5b35b2841bb480023492aa18909c92f2fb24da5a0925644fca91a1c9e9122d54058b9a575befb452fa4ef2bb0dbd713456b07d

  • SSDEEP

    98304:uu7FXGONOA9zyULG+kgd8pVPH+A9zyULG+/mQy8mYA9zyULG+kgd8pVPH+A9zyU1:j9GizLqEglHPzLq0O8mVzLqEglHPzLq

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 4 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\c3b3e606509feb13c4ac729cb418cbe6.exe
    "C:\Users\Admin\AppData\Local\Temp\c3b3e606509feb13c4ac729cb418cbe6.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:640
    • C:\Users\Admin\AppData\Local\Temp\c3b3e606509feb13c4ac729cb418cbe6.exe
      C:\Users\Admin\AppData\Local\Temp\c3b3e606509feb13c4ac729cb418cbe6.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1720
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\c3b3e606509feb13c4ac729cb418cbe6.exe" /TN MJu5Ub8Eff50 /F
        3⤵
        • Creates scheduled task(s)
        PID:2628
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN MJu5Ub8Eff50 > C:\Users\Admin\AppData\Local\Temp\xUnl7dCX5.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1520
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN MJu5Ub8Eff50
          4⤵
            PID:2516

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\c3b3e606509feb13c4ac729cb418cbe6.exe

      Filesize

      829KB

      MD5

      27140baa0e41ca472d36d86ac623dfca

      SHA1

      ac3818d22736c1ca2fd671541650cb887b7a66b6

      SHA256

      1cec58e3afb6e9d3b2f824c4b6280a1b8c36635d2c7562b5a8703422c33089af

      SHA512

      8a8a829848338c9886274caf381f24bd787f5b527cd03240d92b8394d7482e8ad46ac33621e066d7f6d539210d455c2efaa005255e7f01a3909a7d620d0c75e1

    • C:\Users\Admin\AppData\Local\Temp\xUnl7dCX5.xml

      Filesize

      1KB

      MD5

      0b0756e9ca9e6c74169cfc2044861d9b

      SHA1

      aa0cd6bb9357b3bbddc089669b41f25cd85f0132

      SHA256

      d9449f933203df9721572cb14a87faa1aa1b77b2150f4b8439a8cfdac2c1d4ba

      SHA512

      21440a736d186d853c5b5ff13a47c32ead1667d2e4742c195738644ac0b31741f22be83eaf95e28709a9760ea76b015698fc34bf013f98681339e3903384d360

    • \Users\Admin\AppData\Local\Temp\c3b3e606509feb13c4ac729cb418cbe6.exe

      Filesize

      1.3MB

      MD5

      3fa707dd361db1a93b6f8f8ff302cf1e

      SHA1

      fca421c601a4bab1c7011ef753a888d86baa335b

      SHA256

      2ef80bd35b965a5d84a1a2c8d57718aeb0a4b28a7e5ffcea53f67d17f078231a

      SHA512

      49088d934fb91dabaac906b85373c07dc07266bd4201be8a2eeaa218d7415d0bc5e4a0558bfe3da833da7b18e214de56268d76d8a5cf5f27a79203112e6c3baf

    • memory/640-0-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/640-16-0x0000000023590000-0x00000000237EC000-memory.dmp

      Filesize

      2.4MB

    • memory/640-15-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/640-1-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/640-2-0x0000000000330000-0x00000000003AE000-memory.dmp

      Filesize

      504KB

    • memory/1720-19-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/1720-21-0x00000000002E0000-0x000000000035E000-memory.dmp

      Filesize

      504KB

    • memory/1720-26-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/1720-28-0x0000000000360000-0x00000000003CB000-memory.dmp

      Filesize

      428KB

    • memory/1720-36-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB