Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2024 16:02

General

  • Target

    2052-150-0x000001A9BB0E0000-0x000001A9BB0F0000-memory.exe

  • Size

    64KB

  • MD5

    2e511711556c84a5748e2a3c9508f79d

  • SHA1

    793fd65b8ad3e3ff4d32b2a2a77873cdd2e51d14

  • SHA256

    38933a739032b6ccbe0e7e21c2a3f68b26c87ec8f89e51701899099443affaf8

  • SHA512

    ac49bf92e5ca38a776b2435eb502a8c04334f76a9d76f68e1c78b6d4edee9506959f840808884a71c17e45822e41b167c40de0a1b33caa8a4bed2775cdf274c7

  • SSDEEP

    768:8TaTaHaxVq3LgGHk8qZHkvhxST9BeY0FWPG9tM6TOMh+7It:8TaT4a8gykRhWhx69BehFh9tM6TOMIk

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

6lFXjUqCtT3P20q9

Attributes
  • install_file

    wintousb.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 44 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2052-150-0x000001A9BB0E0000-0x000001A9BB0F0000-memory.exe
    "C:\Users\Admin\AppData\Local\Temp\2052-150-0x000001A9BB0E0000-0x000001A9BB0F0000-memory.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\2052-150-0x000001A9BB0E0000-0x000001A9BB0F0000-memory.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1944
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '2052-150-0x000001A9BB0E0000-0x000001A9BB0F0000-memory.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabD70F.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarD732.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\HM6JDDSADNL4KI8HSJPE.temp

    Filesize

    7KB

    MD5

    04cdecd309bd13c31975cf9af8ddffb1

    SHA1

    b80c80a9a97b18d8c5fa0a6118d7bca5f6c729ef

    SHA256

    a78118f02ce67205e76102dfb96fe539089ad0f32e87a37a21dafdaf3c230d8e

    SHA512

    088275bcdbbb97aa4afbfa682863fd38146c7a9c3e53dbc37cb85bd33f71ff7f202003d8441f342830ff355e5e95ff556f984a4d06a05adfea6070d29f3b1e35

  • memory/1944-7-0x000000001B780000-0x000000001BA62000-memory.dmp

    Filesize

    2.9MB

  • memory/1944-8-0x00000000027E0000-0x00000000027E8000-memory.dmp

    Filesize

    32KB

  • memory/1944-6-0x0000000002F50000-0x0000000002FD0000-memory.dmp

    Filesize

    512KB

  • memory/2052-14-0x000000001B620000-0x000000001B902000-memory.dmp

    Filesize

    2.9MB

  • memory/2052-15-0x0000000002290000-0x0000000002298000-memory.dmp

    Filesize

    32KB

  • memory/2316-0-0x000007FEF57E3000-0x000007FEF57E4000-memory.dmp

    Filesize

    4KB

  • memory/2316-16-0x000000001AE80000-0x000000001AF00000-memory.dmp

    Filesize

    512KB

  • memory/2316-1-0x0000000001350000-0x0000000001360000-memory.dmp

    Filesize

    64KB

  • memory/2316-69-0x000007FEF57E3000-0x000007FEF57E4000-memory.dmp

    Filesize

    4KB

  • memory/2316-178-0x000000001AE80000-0x000000001AF00000-memory.dmp

    Filesize

    512KB