Analysis

  • max time kernel
    149s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28/11/2022, 07:31

General

  • Target

    8c1fef0de2f19128440b8c8b8c9efe542a347e5e8bb2d5cdad2bb86ace59d17a.exe

  • Size

    512KB

  • MD5

    5a989be7e77d9959f2fdb85e7d14a204

  • SHA1

    7175fe5f40955696936848fe5b0c8f9793fb8149

  • SHA256

    8c1fef0de2f19128440b8c8b8c9efe542a347e5e8bb2d5cdad2bb86ace59d17a

  • SHA512

    62312f401496377dea55bbde23592db3e3895edf93f826eda24fa4d65b1054a7de14e0858ec4e10843e9060bd7d2c382179a0fd9ec316685b9849b5019e1ff04

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E49:0+h9OY70z+warul3E49

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). Likely ransomware behaviour.

  • 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\8c1fef0de2f19128440b8c8b8c9efe542a347e5e8bb2d5cdad2bb86ace59d17a.exe
    "C:\Users\Admin\AppData\Local\Temp\8c1fef0de2f19128440b8c8b8c9efe542a347e5e8bb2d5cdad2bb86ace59d17a.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:1672
    • C:\Users\Admin\AppData\Local\Temp\n907\s907.exe
      "C:\Users\Admin\AppData\Local\Temp\n907\s907.exe" 766a21417754c6b2efcb77099kLiEPIJeJE/c7B3yQXWYEkPkiN/He3hnSYDIgrWk1HYZlMGUks+R5BDGJADEnfM6IrdZ0NIcX4f23LkTT41r+lCc59NZ2YL9DvLOeOwDvrXZDUAZ5wjGArso9JusM4qAA4v0P3dPKZu15l1ZRFu+fx4 /v "C:\Users\Admin\AppData\Local\Temp\8c1fef0de2f19128440b8c8b8c9efe542a347e5e8bb2d5cdad2bb86ace59d17a.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:624

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n907\s907.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • C:\Users\Admin\AppData\Local\Temp\n907\s907.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n907\s907.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n907\s907.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n907\s907.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n907\s907.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/624-62-0x000007FEF3E20000-0x000007FEF4843000-memory.dmp

          Filesize

          10.1MB

        • memory/624-63-0x000007FEF2030000-0x000007FEF30C6000-memory.dmp

          Filesize

          16.6MB

        • memory/624-64-0x0000000000486000-0x00000000004A5000-memory.dmp

          Filesize

          124KB

        • memory/624-65-0x000007FEFB7E1000-0x000007FEFB7E3000-memory.dmp

          Filesize

          8KB

        • memory/624-66-0x0000000000486000-0x00000000004A5000-memory.dmp

          Filesize

          124KB

        • memory/624-67-0x000007FEED740000-0x000007FEEE5CF000-memory.dmp

          Filesize

          14.6MB

        • memory/624-68-0x000007FEF1D40000-0x000007FEF202A000-memory.dmp

          Filesize

          2.9MB

        • memory/624-69-0x0000000000486000-0x00000000004A5000-memory.dmp

          Filesize

          124KB

        • memory/1672-54-0x0000000075841000-0x0000000075843000-memory.dmp

          Filesize

          8KB