Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    04/05/2024, 02:28

General

  • Target

    2024-05-04_793c19d1b1924506d07f20a7f5221d9b_bkransomware.exe

  • Size

    71KB

  • MD5

    793c19d1b1924506d07f20a7f5221d9b

  • SHA1

    a40b74ddac18599e3fbe01abee0d4439e24c6dd4

  • SHA256

    9dba025eae42a0332374d1f2e6c28dd3db6140ee2e30eacb1f45c1e6952d6b5e

  • SHA512

    2d934cc17375d4da37ed4ce11e69420b0eaf34598ce20cb879836468f736eae392a6ec9b112a3bbb3a6c8594e85484cc8c2958a8306528912d1f3f84f5260b2e

  • SSDEEP

    1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTu:ZhpAyazIlyazTu

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-04_793c19d1b1924506d07f20a7f5221d9b_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-04_793c19d1b1924506d07f20a7f5221d9b_bkransomware.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2924
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\H6HWmcAxFBHhUhF.exe

    Filesize

    71KB

    MD5

    d79cb013e7d6f96b9fef73a2ad220fed

    SHA1

    b80c8061c6a2475c5a38e957b63aaddc660293df

    SHA256

    295f01e163276c7555b60e974ca139fd391d9655830ffe9b3d2f075f1fac5b55

    SHA512

    1825417cde678771cd78c2ba1c3eeffc7a2a3d3ad29a9a1716850cbea27f69b180b94921834de27794e86988075c8c967780ac4f4f1b9d71c340816b0be65d2b

  • C:\Windows\CTS.exe

    Filesize

    71KB

    MD5

    66df4ffab62e674af2e75b163563fc0b

    SHA1

    dec8a197312e41eeb3cfef01cb2a443f0205cd6e

    SHA256

    075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

    SHA512

    1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25