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Analysis

  • max time kernel
    51s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    28/11/2022, 07:20

General

  • Target

    a270a038d6a70f26d2f258a1ab1e051f5770e4616b0762f743dd8b5bf867695b.exe

  • Size

    512KB

  • MD5

    8e7b7299735812a199f9366d9d0ee57d

  • SHA1

    962e85ec26cba7bed4e6e23c2e218bc3c0a1b0d7

  • SHA256

    a270a038d6a70f26d2f258a1ab1e051f5770e4616b0762f743dd8b5bf867695b

  • SHA512

    4e21a4602cb218c6a7712bac313205a6abfdc49093b56b7040afe657a684674d7704fd11fd033be4334e028a19cf3ab596de2ae42b7f27e94758b2494b2dc5bf

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4J:0+h9OY70z+warul3E4J

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\a270a038d6a70f26d2f258a1ab1e051f5770e4616b0762f743dd8b5bf867695b.exe
    "C:\Users\Admin\AppData\Local\Temp\a270a038d6a70f26d2f258a1ab1e051f5770e4616b0762f743dd8b5bf867695b.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:1632
    • C:\Users\Admin\AppData\Local\Temp\n8892\s8892.exe
      "C:\Users\Admin\AppData\Local\Temp\n8892\s8892.exe" 59afd9e125dace54e5003024ts+kE5Oum2ub4AiX/M8J9+ek7cvE/OwL2wNkwFCY9HuRNOe0fqsl+TZrEd2UviIj4KjADtb1Mf7NDEmY24Wg9P499Jwd86bh1E8mAnJeqwy/fEJ8aRZ2jODxCTSP3oU4FkFLyCuZ7BNT2kTvMkMTDzjB /v "C:\Users\Admin\AppData\Local\Temp\a270a038d6a70f26d2f258a1ab1e051f5770e4616b0762f743dd8b5bf867695b.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1728

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n8892\s8892.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n8892\s8892.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n8892\s8892.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n8892\s8892.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n8892\s8892.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n8892\s8892.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1632-54-0x0000000076BA1000-0x0000000076BA3000-memory.dmp

    Filesize

    8KB

  • memory/1728-62-0x000007FEF4280000-0x000007FEF4CA3000-memory.dmp

    Filesize

    10.1MB

  • memory/1728-63-0x000007FEEEC10000-0x000007FEEFCA6000-memory.dmp

    Filesize

    16.6MB

  • memory/1728-64-0x000007FEFC611000-0x000007FEFC613000-memory.dmp

    Filesize

    8KB

  • memory/1728-65-0x0000000000AD6000-0x0000000000AF5000-memory.dmp

    Filesize

    124KB

  • memory/1728-66-0x000007FEEDD80000-0x000007FEEEC0F000-memory.dmp

    Filesize

    14.6MB

  • memory/1728-67-0x000007FEF3590000-0x000007FEF387A000-memory.dmp

    Filesize

    2.9MB

  • memory/1728-68-0x0000000000AD6000-0x0000000000AF5000-memory.dmp

    Filesize

    124KB