Overview

overview

7

Static

static

3

2024-05-23...re.exe

windows7-x64

7

2024-05-23...re.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 03:38

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General

  • Target

    2024-05-23_683996928fe6e441c09d4e4798ada32d_bkransomware.exe

  • Size

    71KB

  • MD5

    683996928fe6e441c09d4e4798ada32d

  • SHA1

    9cbbb7be774618b6c64196a4e604835de204eaf7

  • SHA256

    6ced593a80abc9abf9973026b00dabc1b43cc594050ae5e32d2f17b4004fe193

  • SHA512

    9b2f6c6bc094f29177f391ee8e340f156eaa2cdd78ec8d221a7fe1bd79228a838e6786ede51a9284bee3bfe5ae733ae6bf5e4fa15497572ebce1806d9a8065d9

  • SSDEEP

    1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTk:ZRpAyazIliazTk

Score
7/10
persistencespywarestealer

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.

    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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-23_683996928fe6e441c09d4e4798ada32d_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-23_683996928fe6e441c09d4e4798ada32d_bkransomware.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1884
    • 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:2564

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\yymFmqUiL3NONhL.exe
    Filesize

    71KB

    MD5

    33d5d17f2e23a0377facdab8d925e556

    SHA1

    4cf8a8c7d174182cf8c5ad4486f2da9481c6da92

    SHA256

    212c370a8130e4b43ed2d1fc39aa8b52acb028b351392791f0cfa8eeb40133ea

    SHA512

    60a199cead92fb865df5e3735ebab33a993527d4591562d166fabef20a27dae0261e9f12eed30fd35a8c90824d678d40da3c83a91ed3cb04005c0019d9575552

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  • C:\Windows\CTS.exe
    Filesize

    71KB

    MD5

    f9d4ab0a726adc9b5e4b7d7b724912f1

    SHA1

    3d42ca2098475924f70ee4a831c4f003b4682328

    SHA256

    b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

    SHA512

    22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

    Download Submit