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
    119s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 07:33

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General

  • Target

    2024-05-23_b8c0f8695d049b62169fc995b1d5b771_bkransomware.exe

  • Size

    71KB

  • MD5

    b8c0f8695d049b62169fc995b1d5b771

  • SHA1

    7983149c20311c3c300b8b687bfee03bb03b7e38

  • SHA256

    34a825824740f4998c26f3c78744d8311ff27afcd014c69b29ccbcb84224a352

  • SHA512

    3936c3112d8d75b0f00ec614e28f44a36e81d178dd3849a1c121dfa3a3a4dd60012e05870857b06a4c81b2fe18dc347025ebaecc9fccd1bc2042caa75322bdfe

  • SSDEEP

    1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTG:ZhpAyazIlyazTG

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_b8c0f8695d049b62169fc995b1d5b771_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-23_b8c0f8695d049b62169fc995b1d5b771_bkransomware.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1612
    • 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:2240

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\xumtVpgyGTBWAGI.exe
    Filesize

    71KB

    MD5

    a090a5fe2735fe005859caaae6eaefc9

    SHA1

    f768ba06a50b137a5aa07afcb69f39ee272e96a0

    SHA256

    240009d66139cf952d7ea49d9bf42d9272a0d90e4a8fa3b8f9a10eb355eea7f0

    SHA512

    b5cea8449e9b7357ef656f5284f95929260dc717aaf0eead1dd4e58d923138bdf4dd7861d028427c4bbd3a12cabf89323145fce4adec73c08b441415d833246e

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  • C:\Windows\CTS.exe
    Filesize

    71KB

    MD5

    66df4ffab62e674af2e75b163563fc0b

    SHA1

    dec8a197312e41eeb3cfef01cb2a443f0205cd6e

    SHA256

    075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

    SHA512

    1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

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