Analysis

  • max time kernel
    129s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2022, 22:57

General

  • Target

    c791597600667279229e157370c9ac124e41e23e428c0d8b8071de55af561a04.exe

  • Size

    512KB

  • MD5

    d870c00f3657811aa55a96a37a6d841b

  • SHA1

    a981b5ca0eca6b7660d08c49501f3ec56f0d0899

  • SHA256

    c791597600667279229e157370c9ac124e41e23e428c0d8b8071de55af561a04

  • SHA512

    adfba28eabb65cd5da3591c3bc21d59f1b452c1cc47c0c0ce8062300152380750aa75278604e8d409dd860eba78ff4449464d00074b9ab8bf99f1b341ca26e60

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4s:0+h9OY70z+warul3E4s

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\c791597600667279229e157370c9ac124e41e23e428c0d8b8071de55af561a04.exe
    "C:\Users\Admin\AppData\Local\Temp\c791597600667279229e157370c9ac124e41e23e428c0d8b8071de55af561a04.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:1488
    • C:\Users\Admin\AppData\Local\Temp\n4827\s4827.exe
      "C:\Users\Admin\AppData\Local\Temp\n4827\s4827.exe" 1742cf9c5cb70ad13ca81a70b2VulchubH2B456hduknIxtg9rqVa7PQd9xLP9TjvKscOHHSpdoTXuPT78bzsn9eC3a7dP0OFD9pVZvV+tzvNcwAOZ+WXYVilUKqSB0et3wkMuUZzInA89yTTMQyMUQGOFfeF2aS4YEV3zx15OzLnnT6 /v "C:\Users\Admin\AppData\Local\Temp\c791597600667279229e157370c9ac124e41e23e428c0d8b8071de55af561a04.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1464

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n4827\s4827.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n4827\s4827.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n4827\s4827.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n4827\s4827.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n4827\s4827.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n4827\s4827.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1464-62-0x000007FEF4480000-0x000007FEF4EA3000-memory.dmp

    Filesize

    10.1MB

  • memory/1464-63-0x000007FEF31A0000-0x000007FEF4236000-memory.dmp

    Filesize

    16.6MB

  • memory/1464-64-0x0000000002146000-0x0000000002165000-memory.dmp

    Filesize

    124KB

  • memory/1464-65-0x000007FEEEF10000-0x000007FEEFD9F000-memory.dmp

    Filesize

    14.6MB

  • memory/1464-66-0x000007FEEEC20000-0x000007FEEEF0A000-memory.dmp

    Filesize

    2.9MB

  • memory/1464-67-0x0000000002146000-0x0000000002165000-memory.dmp

    Filesize

    124KB

  • memory/1488-54-0x0000000075B41000-0x0000000075B43000-memory.dmp

    Filesize

    8KB