Overview

overview

7

Static

static

3

2024-04-28...re.exe

windows7-x64

7

2024-04-28...re.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 07:24

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General

  • Target

    2024-04-28_84ecba26cb8061c7ce5061ee8a4d3501_bkransomware.exe

  • Size

    233KB

  • MD5

    84ecba26cb8061c7ce5061ee8a4d3501

  • SHA1

    13a261a537f605ac7ebfd331a7e99d295a420027

  • SHA256

    69cfbf42e40623d002a35df52bc24faa492ee4606803eb0da1101af87a4ec272

  • SHA512

    9136bc64dc4f8e57de737aa03ef1e3f478bf3ab715fb4d89c6547a34d214360a980b889d0b6c77848b6fd3243608c21a74e95bd1cd990b4f35954689afe05a7d

  • SSDEEP

    3072:ZhpAyazIlyazThrEplvaq8a532I1yY5EJ0IUh64jBdFLy3dJJwwZkFMwuhdd6:hZMaztAppaFa5GemlUhDjBvIJLZ3wmi

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\2024-04-28_84ecba26cb8061c7ce5061ee8a4d3501_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-28_84ecba26cb8061c7ce5061ee8a4d3501_bkransomware.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1640
    • 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:2488

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\uNprLX6zX4mxht1.exe
    Filesize

    233KB

    MD5

    f78f9662b0d5c028e27434cf17a7e08e

    SHA1

    9a46eefba824ffdf2cc51de4c90a7e797b51679c

    SHA256

    3800c0ec2bca92afa30dbfc155dcafa64e4bd81e03f7107da5546fcafb0ba208

    SHA512

    93a064f324a44258a81c3719c9f99fd73af73f376c58b3156efc26bc1c125f6379afb28d663887e56be645452e4bc9848064624639a0e9559e1cf4704bd969a3

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  • C:\Windows\CTS.exe
    Filesize

    71KB

    MD5

    66df4ffab62e674af2e75b163563fc0b

    SHA1

    dec8a197312e41eeb3cfef01cb2a443f0205cd6e

    SHA256

    075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

    SHA512

    1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

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