Overview

overview

7

Static

static

3

2024-05-24...re.exe

windows7-x64

7

2024-05-24...re.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 18:46

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General

  • Target

    2024-05-24_07b12e38b1412cbee148b19d2c542aa9_bkransomware.exe

  • Size

    262KB

  • MD5

    07b12e38b1412cbee148b19d2c542aa9

  • SHA1

    12bb6a3d5f5f90fbd64e19b3a10a48a0898bf7bb

  • SHA256

    8453191bee4c8e7dc19a57ff35e0e84f7920452e6232114816de3eb5e67c0f1b

  • SHA512

    eef36365fbac5d6c6dd358e11c89dae038a2ac84b764cd2cd8600245a022990757edcdad4912b29baf7a1476618f52924ee4355601b90f17da7dec18dbc02461

  • SSDEEP

    6144:xZ8az9oSlSejnlZ5DljaXWFSfl2HfjB/C9JZav9QbMBON:xC0CSlVjnBDlKWFg2/jhCm9hON

Score
7/10
persistencespywarestealer

Malware Config

Signatures

  • Executes dropped EXE 2 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\2024-05-24_07b12e38b1412cbee148b19d2c542aa9_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-24_07b12e38b1412cbee148b19d2c542aa9_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:2976
    • C:\Users\Admin\AppData\Local\Temp\dYLhascFhNJxgSK.exe
      C:\Users\Admin\AppData\Local\Temp\dYLhascFhNJxgSK.exe
      2⤵
      • Executes dropped EXE
      PID:2536
    • 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:2648

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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\dYLhascFhNJxgSK.exe
    Filesize

    191KB

    MD5

    94a363cd532d88ac33997c25657a19b5

    SHA1

    a98f1a8361d0183651c0ef457b9ac4339e429bea

    SHA256

    13b98844b2fa4a39a4d8ebb414fc79450d5ab4f0c8f5141ac06d40b2a0431ea4

    SHA512

    3b1c87a67f63e4276453ec1e322f0c13896dd0524ef35f4e4037a481ce354feaa98440f85b784c0b90a900c59ef115654f687457180ea433ea0100427f5c26f5

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