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
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 12:14

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General

  • Target

    2024-04-28_cb15d55ed428f30fa691321f394c440c_bkransomware.exe

  • Size

    71KB

  • MD5

    cb15d55ed428f30fa691321f394c440c

  • SHA1

    13a55f56b8a72ec7f83d52c1c60c638066c0ae8e

  • SHA256

    d5ec007e65e3c95e13a9e68052ab6e8fee90200986c82f3d5d46eb42d8da3507

  • SHA512

    d2f2eb3b0ba80f72488fa9bc8223a3bf9f2e4bb4e63cf33b745078ddb8f64ab21a8859e15e393f93222ed829a2d8420871dae601b5c31571d74c264abd1ae2ef

  • SSDEEP

    1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTEC:ZhpAyazIlyazT7

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_cb15d55ed428f30fa691321f394c440c_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-28_cb15d55ed428f30fa691321f394c440c_bkransomware.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2112
    • 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:1200

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\llSYypwHlsAkowO.exe
    Filesize

    71KB

    MD5

    da551fa17499c23d04ec96cdb54682e1

    SHA1

    745a9a3f4662d7ca01013b26f749388d5ad1d57b

    SHA256

    8f6d945eb919c3224f1931c525ceee17e3a8cf82f35075566be68d07b14404e4

    SHA512

    9bd2312292a4e3434527f79c894f8bd18bae80dde491ef3028bbd97fd206512abcb8b7a90225f7916c0bb54251bb5e98493d85f28dad4564eb722a76df37baa2

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  • C:\Windows\CTS.exe
    Filesize

    71KB

    MD5

    66df4ffab62e674af2e75b163563fc0b

    SHA1

    dec8a197312e41eeb3cfef01cb2a443f0205cd6e

    SHA256

    075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

    SHA512

    1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

    Download Submit