Overview

overview

9

Static

static

3

2024-04-28...re.exe

windows7-x64

7

2024-04-28...re.exe

windows10-2004-x64

9

Sharing

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General

  • Target

    2024-04-28_c5a9fa2474887be17c328652b3d30c58_bkransomware

  • Size

    214KB

  • Sample

    240428-mbx4ysdd88

  • MD5

    c5a9fa2474887be17c328652b3d30c58

  • SHA1

    82445294c29a3d0befeb9152f045b6a29f2faa99

  • SHA256

    1abd9bd62e477f870455e328184177daa4f635c49b4054fd0b2bb55cb5b7ba68

  • SHA512

    b8f37be0cbb58daa3e86ec68b865a068b656c8e2ff637bf3cd26d672dd3f63524843648514edd66faa3ee7393870694e75efa285a8303583cca41c5a5d5c52e4

  • SSDEEP

    6144:hZMazPbXIiwHzzwSZwwSG5hV7pzLP3NPh1QbMW:hS0PczzwS665rVvNJ1u

Score
9/10
persistencespywarestealer

Malware Config

Targets

    • Target

      2024-04-28_c5a9fa2474887be17c328652b3d30c58_bkransomware

    • Size

      214KB

    • MD5

      c5a9fa2474887be17c328652b3d30c58

    • SHA1

      82445294c29a3d0befeb9152f045b6a29f2faa99

    • SHA256

      1abd9bd62e477f870455e328184177daa4f635c49b4054fd0b2bb55cb5b7ba68

    • SHA512

      b8f37be0cbb58daa3e86ec68b865a068b656c8e2ff637bf3cd26d672dd3f63524843648514edd66faa3ee7393870694e75efa285a8303583cca41c5a5d5c52e4

    • SSDEEP

      6144:hZMazPbXIiwHzzwSZwwSG5hV7pzLP3NPh1QbMW:hS0PczzwS665rVvNJ1u

    Score
    9/10
    persistencespywarestealer

    • Detects executables containing bas64 encoded gzip files

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

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

Tasks