Overview

overview

7

Static

static

3

2024-05-21...re.exe

windows7-x64

7

2024-05-21...re.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21-05-2024 19:30

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General

  • Target

    2024-05-21_5d9d10899433b972058fa26c98e4a872_bkransomware.exe

  • Size

    72KB

  • MD5

    5d9d10899433b972058fa26c98e4a872

  • SHA1

    85a81505fa79499dc9dc451b98d9c89e9b94c008

  • SHA256

    42efa447d805b5ab033f854624919d9b57ae8144582bf71880c2a5b4f9e91823

  • SHA512

    e9ea7b384acb1967fdb8363dc48ccf08df7a13bb587d8ebbe5f2ae9b3deba8f13fe246c30918e687fb92cf7028b81270cd3bb0db4a880fd4cc7ec168579152aa

  • SSDEEP

    1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTS:ZRpAyazIliazTS

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\2024-05-21_5d9d10899433b972058fa26c98e4a872_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-21_5d9d10899433b972058fa26c98e4a872_bkransomware.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1924
    • 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:1708

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\5N921UCMZdPL3BJ.exe
    Filesize

    72KB

    MD5

    42514a85887e1f02d0e6f62787cf36bc

    SHA1

    6bb1268897c5ab7f4e1b38232f5b2f3448ce732d

    SHA256

    7bca23f2abbfe069a91630f1dcaf1bcd0f7dafe89801bf68f66b8fc62a042c12

    SHA512

    a0c4ddd219cac0d2924e4d6e18ccfb529ed16494d43a8f0c387b0d97cf0ba305d7e0e6a0e7942a2e9a5fc0b1962e3cc24f5c716c97614029f10ae2735a5d47af

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  • C:\Windows\CTS.exe
    Filesize

    71KB

    MD5

    f9d4ab0a726adc9b5e4b7d7b724912f1

    SHA1

    3d42ca2098475924f70ee4a831c4f003b4682328

    SHA256

    b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

    SHA512

    22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

    Download Submit