Overview

overview

7

Static

static

3

2024-05-22...re.exe

windows7-x64

7

2024-05-22...re.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    22/05/2024, 08:03

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General

  • Target

    2024-05-22_1c73bb543af2c05d14991f76600c00a6_bkransomware.exe

  • Size

    518KB

  • MD5

    1c73bb543af2c05d14991f76600c00a6

  • SHA1

    b18d21770ca5154f38d9b0884b897ad42c0ce3c4

  • SHA256

    86650b923cb433addff935989f22f9eaf0d874176aefa86b9094137091fe925c

  • SHA512

    9cfe2f5c6f9a72e622c852801466806f3982f0320b164f01a1e9672ba048b37b62d2c6a508f662fbc4d5f310ed85ebf502d4cd9cf9803da5d110bb315ffbd50b

  • SSDEEP

    12288:xC0xjkRZkXmGvyp7PpYJ71BxdJGtWBQ7qFwdCiHS5qcS:DxjEZkAp7PA5BxdEtR+FH5q9

Score
7/10
persistencespywarestealer

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.

    spywarestealer
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-22_1c73bb543af2c05d14991f76600c00a6_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-22_1c73bb543af2c05d14991f76600c00a6_bkransomware.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2128
    • C:\Users\Admin\AppData\Local\Temp\kjKrArWiMQLAS1T.exe
      C:\Users\Admin\AppData\Local\Temp\kjKrArWiMQLAS1T.exe
      2⤵
      • Executes dropped EXE
      PID:1216
    • 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:1744

Network

        MITRE ATT&CK Enterprise v15

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\kjKrArWiMQLAS1T.exe
          Filesize

          447KB

          MD5

          3f461ca3e3d9da036cf1a4a06ddf4fb4

          SHA1

          15395e4b656cee3a708bc50c1094e3fa0c46802e

          SHA256

          cd8e84c1f8d1ee3a7014343e3fb236329d2b67c1ec233ea4b208d99e3f95105b

          SHA512

          d0cb3f56db648c9ee151990260a864cdcd0d508a1dafcd741d8b2ccd8f73ba29607f384a4e2752502419cfd4a41d2288d7c3ffec93925be85fc39dad9c01e7f5

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        • C:\Windows\CTS.exe
          Filesize

          71KB

          MD5

          f9d4ab0a726adc9b5e4b7d7b724912f1

          SHA1

          3d42ca2098475924f70ee4a831c4f003b4682328

          SHA256

          b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

          SHA512

          22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

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