Analysis

  • max time kernel
    77s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 07:34

General

  • Target

    877ec82cf14d478514a8dc57c8fb58f2238d6e2bf47b1b2fe1d397e43cdbddcb.exe

  • Size

    512KB

  • MD5

    4f3d7b5037d1512ac65bdef092050215

  • SHA1

    2098de4614b03bfb9943ec4325c0726e0543dd80

  • SHA256

    877ec82cf14d478514a8dc57c8fb58f2238d6e2bf47b1b2fe1d397e43cdbddcb

  • SHA512

    a5a4a3e0f50a03b2d0f7d616c273dff15e3aa97416dcb979cfaf693570c925a3fc099df6716ca8817797d8e58b11058fe785b01e57dd52f48e29805eceffc7e2

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4ZM:0+h9OY70z+warul3E4ZM

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 3 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\877ec82cf14d478514a8dc57c8fb58f2238d6e2bf47b1b2fe1d397e43cdbddcb.exe
    "C:\Users\Admin\AppData\Local\Temp\877ec82cf14d478514a8dc57c8fb58f2238d6e2bf47b1b2fe1d397e43cdbddcb.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:1220
    • C:\Users\Admin\AppData\Local\Temp\n6494\s6494.exe
      "C:\Users\Admin\AppData\Local\Temp\n6494\s6494.exe" f60ba6d95c7c9d851126d588B558YZrRq5Ay0GrTPRUkFhSBzKttkFgbazjLHJMTu5a7PIAzvTTU61+5TaaM4e9pmbO5CQi4RK7aPoGgiAHgHWkcPbTWvQg9fxwU6ztjJjLWOxSbFqPOYy6rblgs3pnE6wgN55LYj2MAj/SbwwFLvnoc /v "C:\Users\Admin\AppData\Local\Temp\877ec82cf14d478514a8dc57c8fb58f2238d6e2bf47b1b2fe1d397e43cdbddcb.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:588

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n6494\s6494.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n6494\s6494.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n6494\s6494.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n6494\s6494.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n6494\s6494.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n6494\s6494.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/588-62-0x000007FEF3140000-0x000007FEF3B63000-memory.dmp

    Filesize

    10.1MB

  • memory/588-63-0x000007FEED310000-0x000007FEEE3A6000-memory.dmp

    Filesize

    16.6MB

  • memory/588-64-0x0000000000746000-0x0000000000765000-memory.dmp

    Filesize

    124KB

  • memory/588-65-0x000007FEFB531000-0x000007FEFB533000-memory.dmp

    Filesize

    8KB

  • memory/588-66-0x0000000000746000-0x0000000000765000-memory.dmp

    Filesize

    124KB

  • memory/1220-54-0x0000000074D81000-0x0000000074D83000-memory.dmp

    Filesize

    8KB