Overview

overview

10

Static

static

1

bipecdki.jpg

windows10-1703-x64

10

bipecdki.jpg

windows11-21h2-x64

8

Sharing

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General

  • Target

    bipecdki.jpg

  • Size

    183KB

  • Sample

    240905-hg428swbre

  • MD5

    ef16ee90b57cac3eac93811f5e419274

  • SHA1

    50bbd97e169875d7b5a5a6b74972e5d6f505e4aa

  • SHA256

    97f3aabf9445d243dccfe0a8e0662d279e2d77f0ad88e75ec44496af748e6eea

  • SHA512

    4186aa8b555e7bbe0c64b1b1353760356f260fee47e1e377e7f1958f5e02d47e20a6641189e85f725a3d2f145855c14df4a31da12156dca00a608c543682e5d9

  • SSDEEP

    3072:9a5BgRtc2wC5sh7oQ260QkY9KNuraPk2Ziig7tmDL00ksXLpukZ/KEqSEfYKI:9sgRtc2Ky+jlijdLxnKYf

Score
10/10
chaosbootkitdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealertrojanupx

Malware Config

Targets

    • Target

      bipecdki.jpg

    • Size

      183KB

    • MD5

      ef16ee90b57cac3eac93811f5e419274

    • SHA1

      50bbd97e169875d7b5a5a6b74972e5d6f505e4aa

    • SHA256

      97f3aabf9445d243dccfe0a8e0662d279e2d77f0ad88e75ec44496af748e6eea

    • SHA512

      4186aa8b555e7bbe0c64b1b1353760356f260fee47e1e377e7f1958f5e02d47e20a6641189e85f725a3d2f145855c14df4a31da12156dca00a608c543682e5d9

    • SSDEEP

      3072:9a5BgRtc2wC5sh7oQ260QkY9KNuraPk2Ziig7tmDL00ksXLpukZ/KEqSEfYKI:9sgRtc2Ky+jlijdLxnKYf

    Score
    10/10
    chaosbootkitdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealertrojanupx

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • UAC bypass

      evasiontrojan

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Disables Task Manager via registry modification

      evasion

    • Downloads MZ/PE file

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Management Instrumentation

1
T1047

Persistence

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Direct Volume Access

1
T1006

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

3
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Subvert Trust Controls

1
T1553

SIP and Trust Provider Hijacking

1
T1553.003

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

4
T1012

Remote System Discovery

1
T1018

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

4
T1490

Tasks