Analysis

  • max time kernel
    116s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    28/11/2022, 00:52

General

  • Target

    37dd8799b0d14a7b371a8ff472a7caf9a53ff5d38bc6bbcf8839be766e3a4c1f.exe

  • Size

    512KB

  • MD5

    55b8a7a616d8ea895136e85126ac6cc4

  • SHA1

    2083555d8f7a057031b108a9a29b346e524fe27b

  • SHA256

    37dd8799b0d14a7b371a8ff472a7caf9a53ff5d38bc6bbcf8839be766e3a4c1f

  • SHA512

    fa6aa92bc85aeb238fbcab5d54a3c96b4119649cdbf5d4694e593f6e509ffb983ae76d75dd6e81df1f784edcfa5fd1afe7f6507dabddb9e7dab7182134177430

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4a:0+h9OY70z+warul3E4a

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\37dd8799b0d14a7b371a8ff472a7caf9a53ff5d38bc6bbcf8839be766e3a4c1f.exe
    "C:\Users\Admin\AppData\Local\Temp\37dd8799b0d14a7b371a8ff472a7caf9a53ff5d38bc6bbcf8839be766e3a4c1f.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:2036
    • C:\Users\Admin\AppData\Local\Temp\n5049\s5049.exe
      "C:\Users\Admin\AppData\Local\Temp\n5049\s5049.exe" 75a8d468cd22bd9fcecc3f81QNN0b+djJPapz06S7WB9mAkgoRgXKH8onF7zAM7n7Biks+Y+9OYnXGwAaBv+mH9Xj8uGgAhRzuenTwlaa76JSJr8a+Cug6iNSdsoUWZ8WmSR/HgPgRPfGTEvB++g6TBMrldZDz35SOLWX7nqBNzWxZ17 /v "C:\Users\Admin\AppData\Local\Temp\37dd8799b0d14a7b371a8ff472a7caf9a53ff5d38bc6bbcf8839be766e3a4c1f.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1992

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n5049\s5049.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • C:\Users\Admin\AppData\Local\Temp\n5049\s5049.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n5049\s5049.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n5049\s5049.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n5049\s5049.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • \Users\Admin\AppData\Local\Temp\n5049\s5049.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/1992-62-0x000007FEF3BD0000-0x000007FEF45F3000-memory.dmp

          Filesize

          10.1MB

        • memory/1992-63-0x000007FEF2B30000-0x000007FEF3BC6000-memory.dmp

          Filesize

          16.6MB

        • memory/1992-64-0x000007FEFC201000-0x000007FEFC203000-memory.dmp

          Filesize

          8KB

        • memory/1992-65-0x00000000001F6000-0x0000000000215000-memory.dmp

          Filesize

          124KB

        • memory/1992-66-0x000007FEEE100000-0x000007FEEEF8F000-memory.dmp

          Filesize

          14.6MB

        • memory/1992-67-0x000007FEF2040000-0x000007FEF232A000-memory.dmp

          Filesize

          2.9MB

        • memory/1992-68-0x00000000001F6000-0x0000000000215000-memory.dmp

          Filesize

          124KB

        • memory/2036-54-0x0000000075631000-0x0000000075633000-memory.dmp

          Filesize

          8KB