Analysis

  • max time kernel
    57s
  • max time network
    66s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28/11/2022, 00:50

General

  • Target

    de8d9f70defa64ff8bba9544d4f83d6891ad720868d8e1b22ffb7f54b13395c2.exe

  • Size

    512KB

  • MD5

    3a781f2a6220f75e5ab0fc4b9fc7a306

  • SHA1

    c231d8ab40ae303f218b4e48a68d8a7eeb4c1cdd

  • SHA256

    de8d9f70defa64ff8bba9544d4f83d6891ad720868d8e1b22ffb7f54b13395c2

  • SHA512

    fbb975d6095abff10bfbe00a29a7414ccc71b21e1a9f9dfb7c2af4797ee516239a9f69172c4eacb06d35411cd830fa587db550b12c626ac5858785c3e1b3a05b

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4E:0+h9OY70z+warul3E4E

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\de8d9f70defa64ff8bba9544d4f83d6891ad720868d8e1b22ffb7f54b13395c2.exe
    "C:\Users\Admin\AppData\Local\Temp\de8d9f70defa64ff8bba9544d4f83d6891ad720868d8e1b22ffb7f54b13395c2.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:1944
    • C:\Users\Admin\AppData\Local\Temp\n2458\s2458.exe
      "C:\Users\Admin\AppData\Local\Temp\n2458\s2458.exe" 5f379ac9abe74cc8e9394722iPFnS4he2MNkytlzy0jTRAVEET64vETlBCk/vTTWKRWw0cr8vVt1Pdxj6PfiGVjX7BCZgYbRM3AM4ONY27i3ZVXpMa0vmYjaZqwnuVd27dpbvRWHFeGSugHdhkl70VmwTDARJNlOVfoKWWSHduOG2qEy /v "C:\Users\Admin\AppData\Local\Temp\de8d9f70defa64ff8bba9544d4f83d6891ad720868d8e1b22ffb7f54b13395c2.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1948

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n2458\s2458.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • C:\Users\Admin\AppData\Local\Temp\n2458\s2458.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n2458\s2458.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n2458\s2458.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n2458\s2458.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n2458\s2458.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/1944-54-0x0000000076831000-0x0000000076833000-memory.dmp

          Filesize

          8KB

        • memory/1948-62-0x000007FEF49F0000-0x000007FEF5413000-memory.dmp

          Filesize

          10.1MB

        • memory/1948-63-0x000007FEF3710000-0x000007FEF47A6000-memory.dmp

          Filesize

          16.6MB

        • memory/1948-64-0x000007FEFC4E1000-0x000007FEFC4E3000-memory.dmp

          Filesize

          8KB

        • memory/1948-65-0x0000000000B36000-0x0000000000B55000-memory.dmp

          Filesize

          124KB

        • memory/1948-66-0x000007FEEE880000-0x000007FEEF70F000-memory.dmp

          Filesize

          14.6MB

        • memory/1948-67-0x000007FEF0090000-0x000007FEF037A000-memory.dmp

          Filesize

          2.9MB

        • memory/1948-68-0x0000000000B36000-0x0000000000B55000-memory.dmp

          Filesize

          124KB