Analysis

  • max time kernel
    117s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2022, 22:33

General

  • Target

    4437ebd4e664ba9e4e59eaa2a42501e7c9b8a1cb17a8931482d65b7674bf995c.exe

  • Size

    512KB

  • MD5

    d05b477511c82e1611b14d59b21b51ca

  • SHA1

    1e1ec2d6f17bcbbe4c02971504f096347db227e6

  • SHA256

    4437ebd4e664ba9e4e59eaa2a42501e7c9b8a1cb17a8931482d65b7674bf995c

  • SHA512

    e91dad873203cca44757ecfe21f15ce79bd512e9235a41345c6e36f8564395f0315d4ab2dd0dff6ffd3a2621019102784015aa350c89036802ca2f0ea1965b6c

  • 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). 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\4437ebd4e664ba9e4e59eaa2a42501e7c9b8a1cb17a8931482d65b7674bf995c.exe
    "C:\Users\Admin\AppData\Local\Temp\4437ebd4e664ba9e4e59eaa2a42501e7c9b8a1cb17a8931482d65b7674bf995c.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:1116
    • C:\Users\Admin\AppData\Local\Temp\n527\s527.exe
      "C:\Users\Admin\AppData\Local\Temp\n527\s527.exe" 0226f2317f59303e5266b3cbXc9jLOHgzusRk2MZVPfvUtMhDZrF3PZN+WsXA+SMhr1e6v2j92UF76o2EPeWjoVmlrisG0ILPHPLOGN+WrvBvyzlig6R9vHzppAk60fEcz0E+c5x1lHgcLeC1n0zmd2dbeYX6uMqyIDawmA2hCzZWQWn /v "C:\Users\Admin\AppData\Local\Temp\4437ebd4e664ba9e4e59eaa2a42501e7c9b8a1cb17a8931482d65b7674bf995c.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1624

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n527\s527.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • C:\Users\Admin\AppData\Local\Temp\n527\s527.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n527\s527.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n527\s527.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n527\s527.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n527\s527.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/1116-54-0x0000000076681000-0x0000000076683000-memory.dmp

          Filesize

          8KB

        • memory/1624-62-0x000007FEF3F10000-0x000007FEF4933000-memory.dmp

          Filesize

          10.1MB

        • memory/1624-63-0x000007FEF2E70000-0x000007FEF3F06000-memory.dmp

          Filesize

          16.6MB

        • memory/1624-64-0x000007FEFC431000-0x000007FEFC433000-memory.dmp

          Filesize

          8KB

        • memory/1624-65-0x0000000001E66000-0x0000000001E85000-memory.dmp

          Filesize

          124KB

        • memory/1624-66-0x0000000001E66000-0x0000000001E85000-memory.dmp

          Filesize

          124KB

        • memory/1624-67-0x000007FEEEB90000-0x000007FEEFA1F000-memory.dmp

          Filesize

          14.6MB

        • memory/1624-68-0x000007FEF2B80000-0x000007FEF2E6A000-memory.dmp

          Filesize

          2.9MB

        • memory/1624-69-0x0000000001E66000-0x0000000001E85000-memory.dmp

          Filesize

          124KB