Analysis

  • max time kernel
    117s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25-02-2024 12:05

General

  • Target

    a3bc72d9098ac48f96f974acc102a881.exe

  • Size

    512KB

  • MD5

    a3bc72d9098ac48f96f974acc102a881

  • SHA1

    e6e33c9b9cfd097537419ad0d3c501db3ffd48ac

  • SHA256

    10cdeebf030a27c29f659762884bd3493f553e3f03cf5e8e909c42cc5bae1f7b

  • SHA512

    a496749e23a9ba0ccfea7eacd02b8cbabd9c94b56f6e08ddc64aa4b30fccc38fd2fa82b6d8c8d2086d66c3001f5cccdd126176aa3cd0b711aafc419585be6c46

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4W:0+h9OY70z+warul3E4W

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\a3bc72d9098ac48f96f974acc102a881.exe
    "C:\Users\Admin\AppData\Local\Temp\a3bc72d9098ac48f96f974acc102a881.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:2776
    • C:\Users\Admin\AppData\Local\Temp\n3527\s3527.exe
      "C:\Users\Admin\AppData\Local\Temp\n3527\s3527.exe" 5b762fef45a2003a0078a9075bOC2gvDHycqATq7mzgkPn5b7GmeGJB1yu+YYSXHcAMu8b59PmEmjEtMcIMeFYwA9TbOmTeRkVnSXKlTP1364Y7SgVDaZYKMZc1i/XWQZXQitqBZ4q1u60SFm/0CtNkKa4A5nu7ABd34Donxi8YpP4bO /v "C:\Users\Admin\AppData\Local\Temp\a3bc72d9098ac48f96f974acc102a881.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab8B41.tmp

    Filesize

    37KB

    MD5

    ae87197d9d6d7a4444fda1093520cf7c

    SHA1

    519155fb8cc99bddda3a5fc36ab12d50ef16ddae

    SHA256

    5a172eefdbd861c09618368fc9e065ce44860de2ced6efe382846eca32e4aa93

    SHA512

    686f9ac5632b88c7ab0aa20eb2ea2e163f57c1782fda15cbbf29d1ce5697147382e34bf95ecd9c82a462bf9d1a9628e7c640d8701dbe7d01b2e72eab2f8d09ae

  • C:\Users\Admin\AppData\Local\Temp\Tar8B63.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • C:\Users\Admin\AppData\Local\Temp\n3527\s3527.exe

    Filesize

    172KB

    MD5

    d8064cfd3f0519ec6baef89db82b5808

    SHA1

    fdbc4c7d9a4cb4672d90318512e1576c22f4b666

    SHA256

    05832d6380c75002a1d28ebaaf4730e3db3aa12e2d8db81e52223b63fc24ed6b

    SHA512

    7fea0b6c42baf1f54cc44affdee9876cf1c7de66ed83d2dd70b239d5380235fa4240776d67dc3d9c6c9d4883b7dcfd6ec52516f5eabe9c09213f9c3470c56479

  • \Users\Admin\AppData\Local\Temp\n3527\s3527.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/2980-74-0x0000000000B90000-0x0000000000C10000-memory.dmp

    Filesize

    512KB

  • memory/2980-78-0x0000000000B90000-0x0000000000C10000-memory.dmp

    Filesize

    512KB

  • memory/2980-72-0x0000000000430000-0x0000000000442000-memory.dmp

    Filesize

    72KB

  • memory/2980-73-0x0000000000B90000-0x0000000000C10000-memory.dmp

    Filesize

    512KB

  • memory/2980-23-0x0000000000B90000-0x0000000000C10000-memory.dmp

    Filesize

    512KB

  • memory/2980-75-0x0000000000B90000-0x0000000000C10000-memory.dmp

    Filesize

    512KB

  • memory/2980-76-0x0000000000B90000-0x0000000000C10000-memory.dmp

    Filesize

    512KB

  • memory/2980-22-0x000007FEF5C90000-0x000007FEF662D000-memory.dmp

    Filesize

    9.6MB

  • memory/2980-77-0x0000000000B90000-0x0000000000C10000-memory.dmp

    Filesize

    512KB

  • memory/2980-79-0x000007FEF5C90000-0x000007FEF662D000-memory.dmp

    Filesize

    9.6MB

  • memory/2980-80-0x0000000000B90000-0x0000000000C10000-memory.dmp

    Filesize

    512KB

  • memory/2980-81-0x000007FEF5C90000-0x000007FEF662D000-memory.dmp

    Filesize

    9.6MB

  • memory/2980-82-0x0000000000B90000-0x0000000000C10000-memory.dmp

    Filesize

    512KB

  • memory/2980-83-0x000007FEF5C90000-0x000007FEF662D000-memory.dmp

    Filesize

    9.6MB