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Analysis

  • max time kernel
    122s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 23:30

General

  • Target

    0b623be4c864eeb6450c77bfed6318ec05f2011674d0b336903c0f9f7fdeb204.exe

  • Size

    512KB

  • MD5

    1a860a5cbee562352999566e9c1c5f99

  • SHA1

    fef23908eab0d8194525d78ec22b41f5941c2292

  • SHA256

    0b623be4c864eeb6450c77bfed6318ec05f2011674d0b336903c0f9f7fdeb204

  • SHA512

    12868514d8d9faaceafef57e7311e5dff1d5a268671a6cc282e3cda0e333d0fa787d1e6c9d617ab1cda5304c4eacf03dc0bbc4e501094117d663da5d63f66d36

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4R:0+h9OY70z+warul3E4R

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 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 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b623be4c864eeb6450c77bfed6318ec05f2011674d0b336903c0f9f7fdeb204.exe
    "C:\Users\Admin\AppData\Local\Temp\0b623be4c864eeb6450c77bfed6318ec05f2011674d0b336903c0f9f7fdeb204.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3256
    • C:\Users\Admin\AppData\Local\Temp\n1767\s1767.exe
      "C:\Users\Admin\AppData\Local\Temp\n1767\s1767.exe" b1b90b37dd1e5a35c3b88630FlWRJ8ekRft0nuXWY9LSjb8VuTMMg8UjFoXQTpjdFa+DvjIs+32BQoWjye1rIRqsGuC80TMwA6b2NKerr0KyLiDL5dkkJc5TxZCMdiaVBLywhifB8ZH6gdX3+wEKbUgOwq8fKTnlnqb40Lgen6/Rw6Ca /v "C:\Users\Admin\AppData\Local\Temp\0b623be4c864eeb6450c77bfed6318ec05f2011674d0b336903c0f9f7fdeb204.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3284

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n1767\s1767.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n1767\s1767.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/3284-135-0x000000001C850000-0x000000001D286000-memory.dmp

    Filesize

    10.2MB

  • memory/3284-136-0x000000000144A000-0x000000000144F000-memory.dmp

    Filesize

    20KB

  • memory/3284-137-0x000000000144A000-0x000000000144F000-memory.dmp

    Filesize

    20KB