Analysis

  • max time kernel
    28s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    02-03-2023 00:15

General

  • Target

    XWorm RAT LATEST/XWorm-RAT-V2.1-builder.exe

  • Size

    3.5MB

  • MD5

    775ff5af83a841cd38d17f0e89850d31

  • SHA1

    977a6139d96c3d0289b3f6ed9ec54ed2ecc0247e

  • SHA256

    416d0f5e93bd4249b00d6907264d870401255dba0fa4983017ae6f34af36dc1b

  • SHA512

    730628bf0f43c069728938656c939784c6146660668d9d5e91ac473f3aff0096fad0804ee2c88b9571ddba2354761668dc550ef4bae6266922dfae8cfc075349

  • SSDEEP

    24576:508GeFzFDzPLDP8c1uAowyLQfB/eVjKIOQaBcM707ae8gpeJF+kR8YD2Y35/5Mbi:Z/TjrHWKWDOQko29ueJsq8z0H

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XWorm RAT LATEST\XWorm-RAT-V2.1-builder.exe
    "C:\Users\Admin\AppData\Local\Temp\XWorm RAT LATEST\XWorm-RAT-V2.1-builder.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\XWorm-RAT-V2.1-builder.exe
      "C:\Users\Admin\AppData\Local\Temp\XWorm-RAT-V2.1-builder.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1976
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 1976 -s 1496
        3⤵
        • Program crash
        PID:1988
    • C:\Users\Admin\AppData\Local\Temp\discord.exe
      "C:\Users\Admin\AppData\Local\Temp\discord.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:308

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\XWorm-RAT-V2.1-builder.exe

    Filesize

    3.2MB

    MD5

    339b7f92641c0f5161731fc681aaeb3a

    SHA1

    21d2d89e9ade90df638f33d314ac68e30f6aa52e

    SHA256

    b6fb77dfd00695678b06ed122523a0b067077fe69113f395661cd3be748d9f7c

    SHA512

    58e5ff1d92be52df114b7f060d700823dff9158ec765cf9b19ab9df0ace2669405467f49d1bd56ce04871683fbcbaace5976ebdbd1575490ff411333a3905134

  • C:\Users\Admin\AppData\Local\Temp\XWorm-RAT-V2.1-builder.exe

    Filesize

    3.2MB

    MD5

    339b7f92641c0f5161731fc681aaeb3a

    SHA1

    21d2d89e9ade90df638f33d314ac68e30f6aa52e

    SHA256

    b6fb77dfd00695678b06ed122523a0b067077fe69113f395661cd3be748d9f7c

    SHA512

    58e5ff1d92be52df114b7f060d700823dff9158ec765cf9b19ab9df0ace2669405467f49d1bd56ce04871683fbcbaace5976ebdbd1575490ff411333a3905134

  • C:\Users\Admin\AppData\Local\Temp\discord.exe

    Filesize

    159KB

    MD5

    46a2cc3ad2ade7a6b5551b53636e0abb

    SHA1

    b8eb52479e933c3530ca826fbe59567af3c4f6ec

    SHA256

    f8af311b3903b6ccd62cb62fed4903eb4351b4b886df23f815cbb61a8feb68d5

    SHA512

    7649c0eab09b770fd2e3a068fc84fb8d40b56207b1809bc6ba0b93955177535b7c3453c24430dc32327603db3541a4c8eac568bf59b18f28eb8fe3071e70217f

  • C:\Users\Admin\AppData\Local\Temp\discord.exe

    Filesize

    159KB

    MD5

    46a2cc3ad2ade7a6b5551b53636e0abb

    SHA1

    b8eb52479e933c3530ca826fbe59567af3c4f6ec

    SHA256

    f8af311b3903b6ccd62cb62fed4903eb4351b4b886df23f815cbb61a8feb68d5

    SHA512

    7649c0eab09b770fd2e3a068fc84fb8d40b56207b1809bc6ba0b93955177535b7c3453c24430dc32327603db3541a4c8eac568bf59b18f28eb8fe3071e70217f

  • \Users\Admin\AppData\Local\Temp\XWorm-RAT-V2.1-builder.exe

    Filesize

    3.2MB

    MD5

    339b7f92641c0f5161731fc681aaeb3a

    SHA1

    21d2d89e9ade90df638f33d314ac68e30f6aa52e

    SHA256

    b6fb77dfd00695678b06ed122523a0b067077fe69113f395661cd3be748d9f7c

    SHA512

    58e5ff1d92be52df114b7f060d700823dff9158ec765cf9b19ab9df0ace2669405467f49d1bd56ce04871683fbcbaace5976ebdbd1575490ff411333a3905134

  • \Users\Admin\AppData\Local\Temp\discord.exe

    Filesize

    159KB

    MD5

    46a2cc3ad2ade7a6b5551b53636e0abb

    SHA1

    b8eb52479e933c3530ca826fbe59567af3c4f6ec

    SHA256

    f8af311b3903b6ccd62cb62fed4903eb4351b4b886df23f815cbb61a8feb68d5

    SHA512

    7649c0eab09b770fd2e3a068fc84fb8d40b56207b1809bc6ba0b93955177535b7c3453c24430dc32327603db3541a4c8eac568bf59b18f28eb8fe3071e70217f

  • memory/308-68-0x00000000012F0000-0x000000000131E000-memory.dmp

    Filesize

    184KB

  • memory/308-71-0x0000000000BD0000-0x0000000000C10000-memory.dmp

    Filesize

    256KB

  • memory/1976-69-0x0000000000C50000-0x0000000000F8E000-memory.dmp

    Filesize

    3.2MB

  • memory/1976-70-0x0000000000250000-0x0000000000270000-memory.dmp

    Filesize

    128KB

  • memory/1976-72-0x000000001B080000-0x000000001B100000-memory.dmp

    Filesize

    512KB

  • memory/1976-73-0x000000001B080000-0x000000001B100000-memory.dmp

    Filesize

    512KB

  • memory/2024-66-0x0000000000400000-0x0000000000784000-memory.dmp

    Filesize

    3.5MB