Analysis

  • max time kernel
    100s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 01:25

General

  • Target

    faa31c49738f2ffaf92995dd241ab0e31316444c8cfe2a85b8a4af52d075b93a.exe

  • Size

    512KB

  • MD5

    a3343649703f90418c218df3f9cd4e84

  • SHA1

    c81bcdc48edc26b44b7db890332648f79e7b6c59

  • SHA256

    faa31c49738f2ffaf92995dd241ab0e31316444c8cfe2a85b8a4af52d075b93a

  • SHA512

    ce10e433dfc4b0fb6489b01450d6bc8952288419a50d4fb68bc2763a4ad6a5fdfaa1e2b7e483cf3740b773e1298d706290db9e088ee5e2fe03d3cc83540efc8e

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4y:0+h9OY70z+warul3E4y

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\faa31c49738f2ffaf92995dd241ab0e31316444c8cfe2a85b8a4af52d075b93a.exe
    "C:\Users\Admin\AppData\Local\Temp\faa31c49738f2ffaf92995dd241ab0e31316444c8cfe2a85b8a4af52d075b93a.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:1752
    • C:\Users\Admin\AppData\Local\Temp\n3709\s3709.exe
      "C:\Users\Admin\AppData\Local\Temp\n3709\s3709.exe" 127472641d5503993ed221ccxRP6gCs+s4k1r5uIFdkFRBkZ1bZVZeq1/X7LssFa9v6yoViOO9oEnaVCDPifyZ+gF+BXNz/lpp2kD1vR6T2nXYrTykToRBYpSYqWVt0/lsZUUkBuZ2ZLpFvxRNxAiz8PLmaPKaAOj2ac/1QIRkTUxUS/ /v "C:\Users\Admin\AppData\Local\Temp\faa31c49738f2ffaf92995dd241ab0e31316444c8cfe2a85b8a4af52d075b93a.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1972

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n3709\s3709.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n3709\s3709.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3709\s3709.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3709\s3709.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3709\s3709.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3709\s3709.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1752-54-0x0000000075931000-0x0000000075933000-memory.dmp

    Filesize

    8KB

  • memory/1972-62-0x000007FEF3850000-0x000007FEF4273000-memory.dmp

    Filesize

    10.1MB

  • memory/1972-59-0x0000000000000000-mapping.dmp

  • memory/1972-63-0x000007FEF27B0000-0x000007FEF3846000-memory.dmp

    Filesize

    16.6MB

  • memory/1972-64-0x000007FEFBC41000-0x000007FEFBC43000-memory.dmp

    Filesize

    8KB

  • memory/1972-65-0x000007FEEE340000-0x000007FEEF1CF000-memory.dmp

    Filesize

    14.6MB

  • memory/1972-66-0x0000000000A36000-0x0000000000A55000-memory.dmp

    Filesize

    124KB

  • memory/1972-67-0x0000000000A36000-0x0000000000A55000-memory.dmp

    Filesize

    124KB

  • memory/1972-68-0x000007FEF24C0000-0x000007FEF27AA000-memory.dmp

    Filesize

    2.9MB

  • memory/1972-69-0x0000000000A36000-0x0000000000A55000-memory.dmp

    Filesize

    124KB