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
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 20:45

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General

  • Target

    2024-05-22_c5b6e457b5fb55f74a3b0dc1c260c5f5_bkransomware.exe

  • Size

    321KB

  • MD5

    c5b6e457b5fb55f74a3b0dc1c260c5f5

  • SHA1

    0e13f5f96d9ab579f77da700a118a85eb9b4b62e

  • SHA256

    fc737c06f39636c60d85be8b7612337e8c132cf089e250458d9e88b76046586a

  • SHA512

    0bea6327fe8ba4f4da4d1e13c20c99d9766676f8bcd1a6da993d107be83a8e4be67b578b0a53d4a7279022f3b17fa900a35f243682e6f5a035187d2683843838

  • SSDEEP

    6144:xZ8azcOCNXarguTb0GvvlKyIGwb0bsuPArdVpD/WJc:xC0cTq0OD3JIRwfAxVL

Score
7/10
persistencespywarestealer

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 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_c5b6e457b5fb55f74a3b0dc1c260c5f5_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-22_c5b6e457b5fb55f74a3b0dc1c260c5f5_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:844
    • C:\Users\Admin\AppData\Local\Temp\0UyTjILS6qAY8TC.exe
      C:\Users\Admin\AppData\Local\Temp\0UyTjILS6qAY8TC.exe
      2⤵
      • Executes dropped EXE
      PID:2064
    • 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:2268

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\CTS.exe
    Filesize

    71KB

    MD5

    f9d4ab0a726adc9b5e4b7d7b724912f1

    SHA1

    3d42ca2098475924f70ee4a831c4f003b4682328

    SHA256

    b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

    SHA512

    22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

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  • \Users\Admin\AppData\Local\Temp\0UyTjILS6qAY8TC.exe
    Filesize

    250KB

    MD5

    9386c7ffb682c69eadb492071138f495

    SHA1

    cd4cda7c97645a9ce694f9543b989e5fb898bbe7

    SHA256

    a4c297fc0b96651ebb71b15398025f80d1f6f592330792ba3eb01d9cd56f9f99

    SHA512

    9b7c2ee269d6f6f33f8656d9e3958036b441246304dce499e9ada4c7dc844a8d4b42deafc5e1d25dc50d069393f0ce9cdc5765a7ca7b3393511d1defba4f7d21

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