Analysis

  • max time kernel
    122s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26/12/2023, 02:04

General

  • Target

    4b5ea86595c7ae18fe22fefb9c37743b.exe

  • Size

    512KB

  • MD5

    4b5ea86595c7ae18fe22fefb9c37743b

  • SHA1

    149d45a276a13a16c583179d42a61c2a84c4d497

  • SHA256

    24cd6d41bfa4306bad80085c4b84443fcf28246e33f788d349bee3495176f2cf

  • SHA512

    84b6ef9f6ece49409946eab80e8cddc7f339294795c16f2ef783982df6c4da32d0ba29f969d9b13fbd7a698ef461a61ee18a4c311d0bf973a8b9207c378f0084

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E42:0+h9OY70z+warul3E42

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b5ea86595c7ae18fe22fefb9c37743b.exe
    "C:\Users\Admin\AppData\Local\Temp\4b5ea86595c7ae18fe22fefb9c37743b.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Loads dropped DLL
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2416
    • C:\Users\Admin\AppData\Local\Temp\n2199\s2199.exe
      "C:\Users\Admin\AppData\Local\Temp\n2199\s2199.exe" c3d3a9cb8d243b33eda2952aBPgLzeuojw9BvkLbiR7Nycj58RZ5KUTYXlOvbDpTPW49XfeTy1wD7dC0vknWYqcjMeyelhGZC5a2KifuKzDfpZS9i6u4MinTFoEjq6v/huEo114CpxF/lRHH/DM/ihEPqDmVVwkJcDA0JHQMcAeWUWxw /v "C:\Users\Admin\AppData\Local\Temp\4b5ea86595c7ae18fe22fefb9c37743b.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2324

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\955CAB6FF6A24D5820D50B5BA1CF79C7_AD9E7615297A3A83320AACE5801A04F9

          Filesize

          5B

          MD5

          4842e206e4cfff2954901467ad54169e

          SHA1

          80c9820ff2efe8aa3d361df7011ae6eee35ec4f0

          SHA256

          2acab1228e8935d5dfdd1756b8a19698b6c8b786c90f87993ce9799a67a96e4e

          SHA512

          ff537b1808fcb03cfb52f768fbd7e7bd66baf6a8558ee5b8f2a02f629e021aa88a1df7a8750bae1f04f3b9d86da56f0bdcba2fdbc81d366da6c97eb76ecb6cba

        • C:\Users\Admin\AppData\Local\Temp\Cab7BD6.tmp

          Filesize

          65KB

          MD5

          ac05d27423a85adc1622c714f2cb6184

          SHA1

          b0fe2b1abddb97837ea0195be70ab2ff14d43198

          SHA256

          c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

          SHA512

          6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

        • C:\Users\Admin\AppData\Local\Temp\Tar7D02.tmp

          Filesize

          171KB

          MD5

          9c0c641c06238516f27941aa1166d427

          SHA1

          64cd549fb8cf014fcd9312aa7a5b023847b6c977

          SHA256

          4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

          SHA512

          936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

        • \Users\Admin\AppData\Local\Temp\n2199\s2199.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/2324-82-0x0000000000B00000-0x0000000000B80000-memory.dmp

          Filesize

          512KB

        • memory/2324-23-0x0000000000B00000-0x0000000000B80000-memory.dmp

          Filesize

          512KB

        • memory/2324-80-0x0000000000450000-0x0000000000462000-memory.dmp

          Filesize

          72KB

        • memory/2324-81-0x000007FEF5740000-0x000007FEF60DD000-memory.dmp

          Filesize

          9.6MB

        • memory/2324-22-0x000007FEF5740000-0x000007FEF60DD000-memory.dmp

          Filesize

          9.6MB

        • memory/2324-83-0x0000000000B00000-0x0000000000B80000-memory.dmp

          Filesize

          512KB

        • memory/2324-85-0x0000000000B00000-0x0000000000B80000-memory.dmp

          Filesize

          512KB

        • memory/2324-86-0x0000000000B00000-0x0000000000B80000-memory.dmp

          Filesize

          512KB

        • memory/2324-84-0x000007FEF5740000-0x000007FEF60DD000-memory.dmp

          Filesize

          9.6MB

        • memory/2324-87-0x0000000000B00000-0x0000000000B80000-memory.dmp

          Filesize

          512KB

        • memory/2324-89-0x0000000000B00000-0x0000000000B80000-memory.dmp

          Filesize

          512KB

        • memory/2324-88-0x0000000000B00000-0x0000000000B80000-memory.dmp

          Filesize

          512KB

        • memory/2324-90-0x000007FEF5740000-0x000007FEF60DD000-memory.dmp

          Filesize

          9.6MB