Overview

overview

9

Static

static

3

2024-04-28...re.exe

windows7-x64

7

2024-04-28...re.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 10:18

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General

  • Target

    2024-04-28_c5a9fa2474887be17c328652b3d30c58_bkransomware.exe

  • Size

    214KB

  • MD5

    c5a9fa2474887be17c328652b3d30c58

  • SHA1

    82445294c29a3d0befeb9152f045b6a29f2faa99

  • SHA256

    1abd9bd62e477f870455e328184177daa4f635c49b4054fd0b2bb55cb5b7ba68

  • SHA512

    b8f37be0cbb58daa3e86ec68b865a068b656c8e2ff637bf3cd26d672dd3f63524843648514edd66faa3ee7393870694e75efa285a8303583cca41c5a5d5c52e4

  • SSDEEP

    6144:hZMazPbXIiwHzzwSZwwSG5hV7pzLP3NPh1QbMW:hS0PczzwS665rVvNJ1u

Score
7/10
persistencespywarestealer

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-28_c5a9fa2474887be17c328652b3d30c58_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-28_c5a9fa2474887be17c328652b3d30c58_bkransomware.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2996
    • C:\Users\Admin\AppData\Local\Temp\shouys5EBqqQoou.exe
      C:\Users\Admin\AppData\Local\Temp\shouys5EBqqQoou.exe
      2⤵
      • Executes dropped EXE
      PID:400
    • 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:2984

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:\Windows\CTS.exe
    Filesize

    71KB

    MD5

    66df4ffab62e674af2e75b163563fc0b

    SHA1

    dec8a197312e41eeb3cfef01cb2a443f0205cd6e

    SHA256

    075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

    SHA512

    1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

    Download Submit
  • \Users\Admin\AppData\Local\Temp\shouys5EBqqQoou.exe
    Filesize

    143KB

    MD5

    c1d5e48111f4984433e6318466ee1bce

    SHA1

    d3379a99f504b38794f491e4fff6c77cfab53eac

    SHA256

    dfdf187874d7368a92bbebb68c8cdc5c183af47d954b5b27ddaeca6774ae4822

    SHA512

    dfce97a9dc92521c2d576b3d21071cb04df4a6d927676a2b95abc0093b67a044aab8d3f8612a4a70f9128cf2555d3a554a1c3f941647a64d30298ab28bba7441

    Download Submit
  • memory/400-13-0x0000000000FE0000-0x0000000001008000-memory.dmp
    Filesize

    160KB

    Download
  • memory/400-14-0x000007FEF50F0000-0x000007FEF5ADC000-memory.dmp
    Filesize

    9.9MB

    Download