Analysis

  • max time kernel
    80s
  • max time network
    162s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2022, 23:24

General

  • Target

    c6fa2b98bd519e8a44a3fef4ffeaec1bc01d988c05b74d26918b5ded4250e42a.exe

  • Size

    512KB

  • MD5

    51b4e0ee6d61853cc923f5b9b394b05f

  • SHA1

    c6b77c835f4968a1f289246f8dd6d4a6c6f631e0

  • SHA256

    c6fa2b98bd519e8a44a3fef4ffeaec1bc01d988c05b74d26918b5ded4250e42a

  • SHA512

    daa975f3c2793599b7ae09b94a50d9b440f68c8ef5db5b5233becd7a15591f0c3cc2dd2c4d72d757cd1fcbd51ac97624c97fa8f9d2ad206701667b3fea4c5183

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E47:0+h9OY70z+warul3E47

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\c6fa2b98bd519e8a44a3fef4ffeaec1bc01d988c05b74d26918b5ded4250e42a.exe
    "C:\Users\Admin\AppData\Local\Temp\c6fa2b98bd519e8a44a3fef4ffeaec1bc01d988c05b74d26918b5ded4250e42a.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:1684
    • C:\Users\Admin\AppData\Local\Temp\n4775\s4775.exe
      "C:\Users\Admin\AppData\Local\Temp\n4775\s4775.exe" 2179e746bb09753f7522b191N35XUJHz8Nr7RNQKp4mN9id4wjPrHe84Gjgr0Gp9Ft5ndMngj/PWvU7REEkft/pVZBY/kPu+uLpoxWSOb5+FuN2JQdyGmTCHXzj70M01ogz/KOfGRH5C9+/cSzFmwBWQ/vsK2hycM+HzgWna0mCipu2d /v "C:\Users\Admin\AppData\Local\Temp\c6fa2b98bd519e8a44a3fef4ffeaec1bc01d988c05b74d26918b5ded4250e42a.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1364

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n4775\s4775.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n4775\s4775.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n4775\s4775.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n4775\s4775.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n4775\s4775.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n4775\s4775.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1364-62-0x000007FEF3F50000-0x000007FEF4973000-memory.dmp

    Filesize

    10.1MB

  • memory/1364-63-0x000007FEF2EB0000-0x000007FEF3F46000-memory.dmp

    Filesize

    16.6MB

  • memory/1364-64-0x000007FEFC2B1000-0x000007FEFC2B3000-memory.dmp

    Filesize

    8KB

  • memory/1364-66-0x0000000001F36000-0x0000000001F55000-memory.dmp

    Filesize

    124KB

  • memory/1364-65-0x000007FEEE200000-0x000007FEEF08F000-memory.dmp

    Filesize

    14.6MB

  • memory/1364-67-0x0000000001F36000-0x0000000001F55000-memory.dmp

    Filesize

    124KB

  • memory/1364-68-0x000007FEF23C0000-0x000007FEF26AA000-memory.dmp

    Filesize

    2.9MB

  • memory/1364-69-0x0000000001F36000-0x0000000001F55000-memory.dmp

    Filesize

    124KB

  • memory/1684-54-0x0000000076AE1000-0x0000000076AE3000-memory.dmp

    Filesize

    8KB