Resubmissions

22-08-2024 14:25

240822-rrpjzavajm 9

21-11-2022 08:25

221121-kbabsabc54 9

Analysis

  • max time kernel
    144s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2022 08:25

General

  • Target

    9c267d6fa78174b3cba8ac8de558d83a97efb8494ba1c675f1493cb41133a897.exe

  • Size

    7.1MB

  • MD5

    6c90fa5b5c9de97a444b366ec0d14255

  • SHA1

    90cd4499a264ac9e589a0a0c98e0258067aa22a7

  • SHA256

    9c267d6fa78174b3cba8ac8de558d83a97efb8494ba1c675f1493cb41133a897

  • SHA512

    538d64476d2f163f7ac3b1021e287c5ae4e041c24fe2065ca970b017015fb420b34cd5f18ff69a3e62c747ac9a64b5574de2189b0ab849dbadc72070e3f21717

  • SSDEEP

    98304:AB2pC6XG4HNkq5UKPhc24Y1/QPldHVTgPNhV0ADXqQgpkWDRIZVMnu0jjD8ueJU:RcUG4raKu24YY7HVT4hV0AD6QgqKRgX

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Modifies extensions of user files 13 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Loads dropped DLL 1 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Themida packer 5 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops desktop.ini file(s) 5 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c267d6fa78174b3cba8ac8de558d83a97efb8494ba1c675f1493cb41133a897.exe
    "C:\Users\Admin\AppData\Local\Temp\9c267d6fa78174b3cba8ac8de558d83a97efb8494ba1c675f1493cb41133a897.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Modifies extensions of user files
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4896

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\e65fffb7-3d5c-4db1-92e4-3612a04c6c8b\AgileDotNetRT.dll

    Filesize

    2.8MB

    MD5

    1e275530f75ec0222ad0a49117819936

    SHA1

    c469db9377442dc65d1c4c6cc5985b28cb1c26e2

    SHA256

    d8519a2a1f40baeb1ee2e6eb1aca27745e5dcab7c046d65b27246e24af57d2bb

    SHA512

    76af1a2193a3b4dc6adc31c9d160b368c6d1a6368af1e99065b53c01cd1c6a93533167a570e6ea68959eeb06b24664f182ad7eef5d7f1ecbfc4cd55e83a72061

  • memory/4896-132-0x0000000000600000-0x0000000000D20000-memory.dmp

    Filesize

    7.1MB

  • memory/4896-134-0x0000000072680000-0x0000000072E05000-memory.dmp

    Filesize

    7.5MB

  • memory/4896-135-0x0000000072680000-0x0000000072E05000-memory.dmp

    Filesize

    7.5MB

  • memory/4896-136-0x0000000072680000-0x0000000072E05000-memory.dmp

    Filesize

    7.5MB

  • memory/4896-137-0x00000000778B0000-0x0000000077A53000-memory.dmp

    Filesize

    1.6MB

  • memory/4896-138-0x00000000738A0000-0x0000000073929000-memory.dmp

    Filesize

    548KB

  • memory/4896-139-0x0000000006680000-0x0000000006C24000-memory.dmp

    Filesize

    5.6MB

  • memory/4896-140-0x00000000062B0000-0x0000000006342000-memory.dmp

    Filesize

    584KB

  • memory/4896-142-0x00000000778B0000-0x0000000077A53000-memory.dmp

    Filesize

    1.6MB

  • memory/4896-141-0x0000000072680000-0x0000000072E05000-memory.dmp

    Filesize

    7.5MB

  • memory/4896-143-0x0000000001670000-0x000000000167A000-memory.dmp

    Filesize

    40KB