Analysis

  • max time kernel
    121s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2024 16:17

General

  • Target

    5f93d1ba8286162e4e7ebe907745b186d2301534fd8b39a84f129f3857f16c30.exe

  • Size

    821KB

  • MD5

    7c36f1554bb662abddb2fafb5db3037d

  • SHA1

    4d2b146919805242a1699139d2937bae4fddfd4b

  • SHA256

    5f93d1ba8286162e4e7ebe907745b186d2301534fd8b39a84f129f3857f16c30

  • SHA512

    caa4b4b05fdd1a5b68979ed0c2388c727dd3d89d34a2351e7e392e1dd1764a87a0af1106e7beaa65a287cd625088daeb9ccfcad4fed8ca39b273fa7142c53665

  • SSDEEP

    24576:PBKn35eX+HnjaKB2LJKI923eTuOmvzzx428hYTGu:EpjHnj3B2VKI92uuOmrOSTGu

Malware Config

Extracted

Family

xworm

Version

5.0

C2

212.162.149.53:7071

Mutex

9GNxvcpH1EHQrLdj

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Extracted

Family

redline

Botnet

FOZ

C2

212.162.149.53:36014

Signatures

  • Detect Xworm Payload 2 IoCs
  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 2 IoCs
  • Redline family
  • Xworm

    Xworm is a remote access trojan written in C#.

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

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f93d1ba8286162e4e7ebe907745b186d2301534fd8b39a84f129f3857f16c30.exe
    "C:\Users\Admin\AppData\Local\Temp\5f93d1ba8286162e4e7ebe907745b186d2301534fd8b39a84f129f3857f16c30.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1876
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YkxAHNcqEmoeLS.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2720
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YkxAHNcqEmoeLS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2118.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2840
    • C:\Users\Admin\AppData\Local\Temp\5f93d1ba8286162e4e7ebe907745b186d2301534fd8b39a84f129f3857f16c30.exe
      "C:\Users\Admin\AppData\Local\Temp\5f93d1ba8286162e4e7ebe907745b186d2301534fd8b39a84f129f3857f16c30.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2724
      • C:\Users\Admin\AppData\Local\Temp\XClient.exe
        "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2096
      • C:\Users\Admin\AppData\Local\Temp\build.exe
        "C:\Users\Admin\AppData\Local\Temp\build.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3056

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    40KB

    MD5

    1c5cf825e29b63a62c3c8b1589d51a1e

    SHA1

    ea4f1dceeeea35b6bd17f4040511bbd0341246a8

    SHA256

    d868406f1fdc6a5c15a70f03f6279fb8a3fe190ea5a4911bf6839fc483c753b0

    SHA512

    c780aff70b930ea221ffd96081c02116f76d2c7b20590fff6ab04038e2aef50ad57eb8f28a67c4dfdb6a00e3fe393e1238d448c3f346585242ee18d180203fd2

  • C:\Users\Admin\AppData\Local\Temp\tmp2118.tmp

    Filesize

    1KB

    MD5

    555c903521dc88fa39b1bb096abaa3dc

    SHA1

    36966c67f1cdc51e95c818f505f022efa776a8b4

    SHA256

    ea820efcbba88ab691b43498b96af65e9787c9c92a5ea293777dcb8890528977

    SHA512

    9d30e7d62542ea0a28b0c39726f75d415957f7cb46c37067b9c3744001018899042f45a9c30930a3e3f512b569cdfba41a872193eefa52d8a2c3038e1f35f183

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

    Filesize

    300KB

    MD5

    1ed2ecae05aaa1c505136f5252287cc7

    SHA1

    2c73c09437c4c1d5e90013a6ca7a65ac0a5fadc5

    SHA256

    d771f70ba342e5d4cd7f129a4a2b4a6c6c7293233135f266db33f356986a70f9

    SHA512

    ca82139310ea62ec8703f6fcb19d843644a5ce40323e8f7857c9fd3173bb0796eb20f9002209b9fcbfa7ce9858fe3b932e070f8449bc2736b6712d39515d9219

  • memory/1876-28-0x0000000074350000-0x0000000074A3E000-memory.dmp

    Filesize

    6.9MB

  • memory/1876-1-0x0000000000800000-0x00000000008D4000-memory.dmp

    Filesize

    848KB

  • memory/1876-2-0x0000000074350000-0x0000000074A3E000-memory.dmp

    Filesize

    6.9MB

  • memory/1876-3-0x00000000007A0000-0x00000000007BC000-memory.dmp

    Filesize

    112KB

  • memory/1876-4-0x000000007435E000-0x000000007435F000-memory.dmp

    Filesize

    4KB

  • memory/1876-5-0x0000000074350000-0x0000000074A3E000-memory.dmp

    Filesize

    6.9MB

  • memory/1876-6-0x00000000050F0000-0x0000000005192000-memory.dmp

    Filesize

    648KB

  • memory/1876-0-0x000000007435E000-0x000000007435F000-memory.dmp

    Filesize

    4KB

  • memory/2096-42-0x0000000000EE0000-0x0000000000EF0000-memory.dmp

    Filesize

    64KB

  • memory/2724-22-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2724-18-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2724-17-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2724-14-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2724-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2724-21-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2724-24-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2724-12-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/3056-41-0x0000000000C20000-0x0000000000C72000-memory.dmp

    Filesize

    328KB