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
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 14:54

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General

  • Target

    2024-05-24_7164c9b010cb75651d29213dd6eb3d85_bkransomware.exe

  • Size

    172KB

  • MD5

    7164c9b010cb75651d29213dd6eb3d85

  • SHA1

    2d059f6f826dc0fbdb2cc0169841e01e9be80f60

  • SHA256

    13080d71b3757c8002669117109427a78adf9889fa179ef20b744347cec9c448

  • SHA512

    49910522201e137ba9b5468c2f747b0813c1d0667ed8e35e6688abbd16b56e8ad89d823524b01531d829c9f73942206c625c0dab97631ace5717902c33c4d8a3

  • SSDEEP

    3072:ZRpAyazIliazTQ2ftYQ1zpYigpduILv9KAA1IwPmNY6iq:xZ8azt7AjkAA1HcY6n

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\2024-05-24_7164c9b010cb75651d29213dd6eb3d85_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-24_7164c9b010cb75651d29213dd6eb3d85_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:2824
    • C:\Users\Admin\AppData\Local\Temp\qtxqrsLQJqyoDNa.exe
      C:\Users\Admin\AppData\Local\Temp\qtxqrsLQJqyoDNa.exe
      2⤵
      • Executes dropped EXE
      PID:2220
    • 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:2216

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:\Users\Admin\AppData\Local\Temp\qtxqrsLQJqyoDNa.exe
    Filesize

    172KB

    MD5

    04d9c2b2141e10212492271535b40978

    SHA1

    d9ef73a5f44b1e19fa1129574353582eee4ffa34

    SHA256

    3d221b552ef51436d29dc622b5ce836bc32ef41f7562744d29196217d7abe389

    SHA512

    1c75e72a1d3d720d09cabeddda3e530aeebbfb6a56950275a2c31ac2e5379fe0fdd780b4d1df2520b0de46beedafe32d620098ed33c3b20c6de8c3cdf9c62da5

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  • C:\Windows\CTS.exe
    Filesize

    71KB

    MD5

    f9d4ab0a726adc9b5e4b7d7b724912f1

    SHA1

    3d42ca2098475924f70ee4a831c4f003b4682328

    SHA256

    b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

    SHA512

    22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

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  • \Users\Admin\AppData\Local\Temp\qtxqrsLQJqyoDNa.exe
    Filesize

    100KB

    MD5

    db697c943fcb215f757f9c22c907c568

    SHA1

    c57d891472f5ede8b1ee5d9bd6f5ad8fc8e9e5d7

    SHA256

    07c96337729e3c4c986e8f5660a97cb475c4c04842606be2654b37892af57de9

    SHA512

    bfa5c34d8c78015ccf96a2ef1c6d8f82157eb88680139bdbb51c55e3cd2a7c41bf364a364fd62b180b202cdf4f3d7d31c3710b8709c1d25a639bb00dfc97b646

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