Analysis

  • max time kernel
    81s
  • max time network
    116s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 21:41

General

  • Target

    71c44f34a01bd7aefda96180cf8073215f4466ac0cd83ef61d42b200c2835b25.exe

  • Size

    512KB

  • MD5

    37a4042ecb651d6399dfbe410f892cf2

  • SHA1

    6f95583fba132c65cf994d3f2b685173eeff94c4

  • SHA256

    71c44f34a01bd7aefda96180cf8073215f4466ac0cd83ef61d42b200c2835b25

  • SHA512

    22b4f33dd415ee60638a0ae428257d8f4d0f0838a6ffef2ab0988a6fa679f050a2ba73e95748d6bffacb397bff178c0c2a72c3ad5611e2bac7f0c8c75e76a4ac

  • 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\71c44f34a01bd7aefda96180cf8073215f4466ac0cd83ef61d42b200c2835b25.exe
    "C:\Users\Admin\AppData\Local\Temp\71c44f34a01bd7aefda96180cf8073215f4466ac0cd83ef61d42b200c2835b25.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:1080
    • C:\Users\Admin\AppData\Local\Temp\n8512\s8512.exe
      "C:\Users\Admin\AppData\Local\Temp\n8512\s8512.exe" 9af93114a4634e53c29a8424DV9VVJ9GJOKWQxgDG5/4lV769wQkPkczSq2xejrYYAxL7s+nFB+Sl1Q2ldRdzfwITy2vGoD+0n+H5aImiuYCU4b3Pohqs1mKkrqdCNSkpxqqJJI2QzdgL4R+OaRAlKLHtZllDJZs7+jf/4o601woiGLP /v "C:\Users\Admin\AppData\Local\Temp\71c44f34a01bd7aefda96180cf8073215f4466ac0cd83ef61d42b200c2835b25.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1764

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n8512\s8512.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n8512\s8512.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n8512\s8512.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n8512\s8512.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n8512\s8512.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n8512\s8512.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1080-54-0x00000000758C1000-0x00000000758C3000-memory.dmp

    Filesize

    8KB

  • memory/1764-62-0x000007FEF3A90000-0x000007FEF44B3000-memory.dmp

    Filesize

    10.1MB

  • memory/1764-63-0x000007FEF29F0000-0x000007FEF3A86000-memory.dmp

    Filesize

    16.6MB

  • memory/1764-64-0x000007FEFBE11000-0x000007FEFBE13000-memory.dmp

    Filesize

    8KB

  • memory/1764-65-0x00000000020E6000-0x0000000002105000-memory.dmp

    Filesize

    124KB

  • memory/1764-66-0x000007FEEE200000-0x000007FEEF08F000-memory.dmp

    Filesize

    14.6MB

  • memory/1764-67-0x00000000020E6000-0x0000000002105000-memory.dmp

    Filesize

    124KB

  • memory/1764-68-0x000007FEF2700000-0x000007FEF29EA000-memory.dmp

    Filesize

    2.9MB

  • memory/1764-69-0x00000000020E6000-0x0000000002105000-memory.dmp

    Filesize

    124KB