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Analysis

  • max time kernel
    63s
  • 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, 23:21

General

  • Target

    ff8f763d9b332f6603c658fcf1d11ab7621e284d12c4dfc7b2fdde2b11d1805c.exe

  • Size

    512KB

  • MD5

    c57d837d06c5dc8ff9080181c5008f87

  • SHA1

    3d434e24753098b74445e473cce0fe82459ce60b

  • SHA256

    ff8f763d9b332f6603c658fcf1d11ab7621e284d12c4dfc7b2fdde2b11d1805c

  • SHA512

    a9719b29b1372eb5160b995d4b89f63f9c63161eddc67b88a151f0192cc6cb75f06d4ad3ee2758358874d366eadcf4380cb739d9e793d3b5073fee2f971871fd

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4g:0+h9OY70z+warul3E4g

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\ff8f763d9b332f6603c658fcf1d11ab7621e284d12c4dfc7b2fdde2b11d1805c.exe
    "C:\Users\Admin\AppData\Local\Temp\ff8f763d9b332f6603c658fcf1d11ab7621e284d12c4dfc7b2fdde2b11d1805c.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:856
    • C:\Users\Admin\AppData\Local\Temp\n3838\s3838.exe
      "C:\Users\Admin\AppData\Local\Temp\n3838\s3838.exe" 52bf6c4a878a43ba5c667d160elRFyxybxWovApvhUB/XVYoxQIbGuOfPps4+ZEDQAIAer6RgzcsBhmxn/Fq/d8cLl8D19ZpNDkzoWdTLny0eCLqHBRWYTmKZbCSgq0D5cVjlAhDv6Q8Et6lqgDnz/NzIR0rbQPQiDfd8qP4DosW60w= /v "C:\Users\Admin\AppData\Local\Temp\ff8f763d9b332f6603c658fcf1d11ab7621e284d12c4dfc7b2fdde2b11d1805c.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1100

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n3838\s3838.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n3838\s3838.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3838\s3838.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3838\s3838.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3838\s3838.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3838\s3838.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/856-54-0x0000000075D01000-0x0000000075D03000-memory.dmp

    Filesize

    8KB

  • memory/1100-62-0x000007FEF4710000-0x000007FEF5133000-memory.dmp

    Filesize

    10.1MB

  • memory/1100-63-0x000007FEF3670000-0x000007FEF4706000-memory.dmp

    Filesize

    16.6MB

  • memory/1100-64-0x000007FEFC161000-0x000007FEFC163000-memory.dmp

    Filesize

    8KB

  • memory/1100-65-0x0000000001FA6000-0x0000000001FC5000-memory.dmp

    Filesize

    124KB

  • memory/1100-66-0x000007FEEE8A0000-0x000007FEEF72F000-memory.dmp

    Filesize

    14.6MB

  • memory/1100-67-0x000007FEF2B90000-0x000007FEF2E7A000-memory.dmp

    Filesize

    2.9MB

  • memory/1100-68-0x0000000001FA6000-0x0000000001FC5000-memory.dmp

    Filesize

    124KB