Analysis

  • max time kernel
    153s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 08:00

General

  • Target

    516c7a8e9bc75a4dbfc00db0196efdbe6438e31e4849069ffb47dfe7cf84ce17.exe

  • Size

    512KB

  • MD5

    91d0e9089e12566de6306e5f91c1ed7b

  • SHA1

    2f09584130378b6151504cfc60d6baca6aeb9f4b

  • SHA256

    516c7a8e9bc75a4dbfc00db0196efdbe6438e31e4849069ffb47dfe7cf84ce17

  • SHA512

    019c8e5ea012434d6137ab5b01723eb6712beee7c927df7c1974fcf19f4840eae0dd3c6e362e7097f25522871f154ed9c24bcd1e65dc7e9bb41f825eeace0c61

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4v:0+h9OY70z+warul3E4v

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\516c7a8e9bc75a4dbfc00db0196efdbe6438e31e4849069ffb47dfe7cf84ce17.exe
    "C:\Users\Admin\AppData\Local\Temp\516c7a8e9bc75a4dbfc00db0196efdbe6438e31e4849069ffb47dfe7cf84ce17.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:976
    • C:\Users\Admin\AppData\Local\Temp\n8866\s8866.exe
      "C:\Users\Admin\AppData\Local\Temp\n8866\s8866.exe" f1f9ab285afa9bb4814e8893AB/Gif7GsAKet3wivYylcoPhMJSieXQ5aXVvYGz8eOkh+BFWX/rJPTiV4B1Scj1ws7UIp/6N0t5thAfLqVzEb7qVc8GEwv0pFE7iV7sUHhccdff0bDtpb3MoxQbVR+rDyJNOa/i0yCQI+HUvnyPRYKJw /v "C:\Users\Admin\AppData\Local\Temp\516c7a8e9bc75a4dbfc00db0196efdbe6438e31e4849069ffb47dfe7cf84ce17.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1552

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n8866\s8866.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n8866\s8866.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n8866\s8866.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n8866\s8866.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n8866\s8866.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n8866\s8866.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/976-54-0x0000000075761000-0x0000000075763000-memory.dmp

    Filesize

    8KB

  • memory/1552-62-0x000007FEF41A0000-0x000007FEF4BC3000-memory.dmp

    Filesize

    10.1MB

  • memory/1552-59-0x0000000000000000-mapping.dmp

  • memory/1552-63-0x000007FEF2EC0000-0x000007FEF3F56000-memory.dmp

    Filesize

    16.6MB

  • memory/1552-64-0x000007FEFBF81000-0x000007FEFBF83000-memory.dmp

    Filesize

    8KB

  • memory/1552-65-0x0000000000B26000-0x0000000000B45000-memory.dmp

    Filesize

    124KB

  • memory/1552-66-0x000007FEEE7A0000-0x000007FEEF62F000-memory.dmp

    Filesize

    14.6MB

  • memory/1552-67-0x0000000000B26000-0x0000000000B45000-memory.dmp

    Filesize

    124KB

  • memory/1552-68-0x000007FEF1D10000-0x000007FEF1FFA000-memory.dmp

    Filesize

    2.9MB

  • memory/1552-69-0x0000000000B26000-0x0000000000B45000-memory.dmp

    Filesize

    124KB