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
    120s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 11:16

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General

  • Target

    2024-04-28_9cb1b0dd8b44241413451e83b40c3212_bkransomware.exe

  • Size

    172KB

  • MD5

    9cb1b0dd8b44241413451e83b40c3212

  • SHA1

    0e8beb2869a13609d63a5477c837099203fe0add

  • SHA256

    0792288d6aed4971033116d17e36eea58ed0070c131e997ce6ead89595ed7221

  • SHA512

    980554acfad05980412db522c87eddd9d5e9b388defd611b191c1439e3928cf47392467e5642cbbc9d4b60682f26a8ecfc870d337d35771937d40098b453d05b

  • SSDEEP

    3072:ZhpAyazIlyazTK+erII0nMsQg3otWuIKDuhxSFmZNfa:hZMazG+6IIEY9ILho3

Score
7/10
persistencespywarestealer

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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_9cb1b0dd8b44241413451e83b40c3212_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-28_9cb1b0dd8b44241413451e83b40c3212_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:2040
    • C:\Users\Admin\AppData\Local\Temp\3eH4bynXFk9BGNR.exe
      C:\Users\Admin\AppData\Local\Temp\3eH4bynXFk9BGNR.exe
      2⤵
      • Executes dropped EXE
      PID:864
    • 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:2464

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\3eH4bynXFk9BGNR.exe
    Filesize

    172KB

    MD5

    e07b6a1452ef1ed16ccb469d1e34826f

    SHA1

    ae86a08abbf2024012c3f29fbb171c25b0f2c1d4

    SHA256

    6adfde8a6da0c8d2388585bab1c6fd510e990e9c022d52f56a52fe74837d94c5

    SHA512

    6b2a1cec8f952be490e67d2b81fb9f9b33411c84a8c7a2dd5d3bfd755a1b5a3bc2ac86d1f529101b898073ed7488f9b764c3c17fa61df638f1d9087173cf4ada

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  • C:\Windows\CTS.exe
    Filesize

    71KB

    MD5

    66df4ffab62e674af2e75b163563fc0b

    SHA1

    dec8a197312e41eeb3cfef01cb2a443f0205cd6e

    SHA256

    075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

    SHA512

    1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

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  • \Users\Admin\AppData\Local\Temp\3eH4bynXFk9BGNR.exe
    Filesize

    100KB

    MD5

    db697c943fcb215f757f9c22c907c568

    SHA1

    c57d891472f5ede8b1ee5d9bd6f5ad8fc8e9e5d7

    SHA256

    07c96337729e3c4c986e8f5660a97cb475c4c04842606be2654b37892af57de9

    SHA512

    bfa5c34d8c78015ccf96a2ef1c6d8f82157eb88680139bdbb51c55e3cd2a7c41bf364a364fd62b180b202cdf4f3d7d31c3710b8709c1d25a639bb00dfc97b646

    Download Submit