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
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 10:07

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General

  • Target

    2024-04-28_6fede314144929bb68f7f1811a418c00_bkransomware.exe

  • Size

    96KB

  • MD5

    6fede314144929bb68f7f1811a418c00

  • SHA1

    8349d6cf26827e8070a9fe03533b7370a7fbc18e

  • SHA256

    f2372222fd942e936440bffa37b90c323ada6989d9826b59d06ef3d8836527ab

  • SHA512

    b57cf846b19c980b419edb26cb7f483fbfa18f8d1b31cffd45434f1b45248e2e971171aa19e4c5f38dbf1361b18e53c5d99377e679c32d1d55342b3ff4f8acfc

  • SSDEEP

    1536:Fc8N7UsWjcd9w+AyabjDbxE+MwmvlzuazTlmLRm7TYN5JjMyURNjkjV:ZRpAyazIliazTmRyYHFME

Score
7/10
persistencespywarestealer

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 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_6fede314144929bb68f7f1811a418c00_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-28_6fede314144929bb68f7f1811a418c00_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:1504
    • C:\Users\Admin\AppData\Local\Temp\DDfSGXER893nDYj.exe
      C:\Users\Admin\AppData\Local\Temp\DDfSGXER893nDYj.exe
      2⤵
      • Executes dropped EXE
      PID:3020
    • 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:2324

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\DDfSGXER893nDYj.exe
    Filesize

    96KB

    MD5

    a662b70a4bf15d1646724034b3231157

    SHA1

    459a54e5642ad14c48d7a2ca9ab5b2b55e18a96b

    SHA256

    973a98dfa229c7627831d128407ad813cefb06b21291d98345821f72772dec68

    SHA512

    1a19dd768b4ee29f18a7c0991f20c13dcef3d6201ac1f0d7079a5244857029ae47557d1d0aab1b1dad6d777821b61f448aa7fd903cf7d3c44a730238a1838b65

    Download Submit
  • C:\Windows\CTS.exe
    Filesize

    71KB

    MD5

    f9d4ab0a726adc9b5e4b7d7b724912f1

    SHA1

    3d42ca2098475924f70ee4a831c4f003b4682328

    SHA256

    b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc

    SHA512

    22a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432

    Download Submit
  • \Users\Admin\AppData\Local\Temp\DDfSGXER893nDYj.exe
    Filesize

    25KB

    MD5

    abbd49c180a2f8703f6306d6fa731fdc

    SHA1

    d63f4bfe7f74936b2fbace803e3da6103fbf6586

    SHA256

    5f411c0bd9ed9a42b0f07ed568c7d0cf358a83063b225a1f8f7da3296dde90f1

    SHA512

    290dd984acc451b778f3db8c510bae7aec1d9547c3ad0a1829df731c136e4ecc9a37dc6a786cf8f1ecc4d14339aed1288af25055f450f6f953138c8d4d5c36e9

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  • memory/3020-15-0x0000000000400000-0x000000000040D000-memory.dmp
    Filesize

    52KB

    Download