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Analysis

  • max time kernel
    118s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22/12/2023, 10:40

General

  • Target

    85adf8728a5c0a353c13c90bcc41cf71.exe

  • Size

    1.5MB

  • MD5

    85adf8728a5c0a353c13c90bcc41cf71

  • SHA1

    d02bf9774c4e225e70f658c815c4130ab815444b

  • SHA256

    6554fa82f9154d6d39c129916a39e2643695ff0ee7b48fb8680dac4c6b1e44c0

  • SHA512

    68782f8755c2475cd3a4df0583f61daa8fad3a95097f7d07ebadb68c346dee9b32484c81915535c8ebeb465ef8a5eb72c201ad10313988a69f2ac0fdb51fc73b

  • SSDEEP

    24576:43x60yh/8B+uJvnEcjukL2Iqxui71kyhJH6cjukL2Y:8x63h/8B+uhnEcakLxi71kiJacakLj

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
  • 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\85adf8728a5c0a353c13c90bcc41cf71.exe
    "C:\Users\Admin\AppData\Local\Temp\85adf8728a5c0a353c13c90bcc41cf71.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3036
    • C:\Users\Admin\AppData\Local\Temp\85adf8728a5c0a353c13c90bcc41cf71.exe
      C:\Users\Admin\AppData\Local\Temp\85adf8728a5c0a353c13c90bcc41cf71.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2460
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\85adf8728a5c0a353c13c90bcc41cf71.exe" /TN BSpsfata099d /F
        3⤵
        • Creates scheduled task(s)
        PID:2812
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN BSpsfata099d > C:\Users\Admin\AppData\Local\Temp\PpyUcm3N.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2696
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN BSpsfata099d
          4⤵
            PID:2168

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\85adf8728a5c0a353c13c90bcc41cf71.exe

      Filesize

      1.5MB

      MD5

      a017b2fd1c4fffa072d1cd14f6f33b76

      SHA1

      f5b4b88a3f2655f1c9272ebf12d70d59e87e7722

      SHA256

      b44bdd0fd758a79c665faa0d69dd6423b96a771f8c628ed52eb0b14696b8ab3f

      SHA512

      787a8a4d04dbd763d63c73e682e6659c84fbc2ebaf07986f21457f88f7ae19412864b087c20a81f0510024ec6cca2bbe274ef29c36622df57fb682f83bde9436

    • C:\Users\Admin\AppData\Local\Temp\PpyUcm3N.xml

      Filesize

      1KB

      MD5

      eea82aeff42021c8a4ea41db3c675376

      SHA1

      6f152e9036f85c14c499a693968ca4b555a477be

      SHA256

      f16bda9e195f90b0914f27dd40dde2555761fc3f3371e52e64b4fb04e18e5062

      SHA512

      1be814ebfa26e706be91e78a57a905f2acbd5d7ce3fb8029be7ff4089bceedb0d71b91c54c3aa59e103bae2382471021fd071ef3fd6bf8ea9cfdacc1b54b33b3

    • memory/2460-17-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/2460-24-0x0000000000260000-0x00000000002DE000-memory.dmp

      Filesize

      504KB

    • memory/2460-25-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/2460-27-0x00000000002E0000-0x000000000034B000-memory.dmp

      Filesize

      428KB

    • memory/2460-52-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/3036-0-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/3036-1-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/3036-2-0x0000000000350000-0x00000000003CE000-memory.dmp

      Filesize

      504KB

    • memory/3036-15-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB