Analysis

  • max time kernel
    76s
  • max time network
    160s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 11:02

General

  • Target

    bc2a39287345bbd5df63f3f838de53f3799f2de629e741ce3a30d4c480f2751e.exe

  • Size

    512KB

  • MD5

    c0ed76909f4661ddd1acfcaaecd9d7ad

  • SHA1

    d8718cec682c662d87af21f9ecf83358528d7c24

  • SHA256

    bc2a39287345bbd5df63f3f838de53f3799f2de629e741ce3a30d4c480f2751e

  • SHA512

    0fd7270a21bd5bd3449f75eb06d598c7d07a7fbdad33605db78d44b9282a97604782c411b41adf8f92947bedc7b7eca654bc18f29722467c6d12d583e0c8d84b

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4h:0+h9OY70z+warul3E4h

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\bc2a39287345bbd5df63f3f838de53f3799f2de629e741ce3a30d4c480f2751e.exe
    "C:\Users\Admin\AppData\Local\Temp\bc2a39287345bbd5df63f3f838de53f3799f2de629e741ce3a30d4c480f2751e.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:2028
    • C:\Users\Admin\AppData\Local\Temp\n3812\s3812.exe
      "C:\Users\Admin\AppData\Local\Temp\n3812\s3812.exe" 410df7d7a9bc460da0dfc8028SxFm8j9sxqtHCrrBu/HccmCyNJnyxIab/HYA/170RKkiyUlbXd0BgSpEEKHIMDUxKePuRC/PrcrEhHevzuEfV9l6vT2xruKh+Bhp6Cr4Jk5xW/rkpyULhoCGz1j4pDgBgL/oYIPpzylaQAFmvuLWi+W /v "C:\Users\Admin\AppData\Local\Temp\bc2a39287345bbd5df63f3f838de53f3799f2de629e741ce3a30d4c480f2751e.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1524

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n3812\s3812.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n3812\s3812.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3812\s3812.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3812\s3812.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3812\s3812.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3812\s3812.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1524-59-0x0000000000000000-mapping.dmp

  • memory/1524-62-0x000007FEF40A0000-0x000007FEF4AC3000-memory.dmp

    Filesize

    10.1MB

  • memory/1524-63-0x000007FEF3000000-0x000007FEF4096000-memory.dmp

    Filesize

    16.6MB

  • memory/1524-64-0x0000000000926000-0x0000000000945000-memory.dmp

    Filesize

    124KB

  • memory/1524-65-0x000007FEEEA80000-0x000007FEEF90F000-memory.dmp

    Filesize

    14.6MB

  • memory/1524-67-0x0000000000926000-0x0000000000945000-memory.dmp

    Filesize

    124KB

  • memory/1524-66-0x000007FEF2D10000-0x000007FEF2FFA000-memory.dmp

    Filesize

    2.9MB

  • memory/1524-68-0x0000000000926000-0x0000000000945000-memory.dmp

    Filesize

    124KB

  • memory/2028-54-0x00000000762F1000-0x00000000762F3000-memory.dmp

    Filesize

    8KB