Overview

overview

10

Static

static

1

Screenshot...PM.png

windows11-21h2-x64

Resubmissions

07-10-2024 19:03

241007-xqldtavhra 6

27-09-2024 23:46

240927-3samzsybkf 8

27-09-2024 23:14

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27-09-2024 23:12

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27-09-2024 20:13

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27-09-2024 20:02

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27-09-2024 19:59

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240927-ynwx7swhll 3

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General

  • Target

    Screenshot 2024-09-24 2.11.17 PM.png

  • Size

    45KB

  • Sample

    240927-x1bx5axelf

  • MD5

    578c76503d19e73f7a935cdfb1a4108e

  • SHA1

    74644b49ebeb844cfa821fe70251f8e56ac6e112

  • SHA256

    3e5e23c0adf484b96a726f9ecdbd4a3089ad7f8979329616b73e521825e183ae

  • SHA512

    52b1cb29234be0e46a90cc26f8ac9ad6ff45887f80fbaf20da53bce7c9530111778317aaa393e6e94fe97f3f15372a0de869f709e768f278bd74ba989599ca0d

  • SSDEEP

    768:54PXdrAREaTeqsZ+93ArVC7UpbJss0JAKEKFXsojUIFI5A29+FKn2g5Fh2O:54Pa1swmfNIOKEKSY29tnxhz

Score
10/10
chimeradefense_evasiondiscoveryevasionpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      Screenshot 2024-09-24 2.11.17 PM.png

    • Size

      45KB

    • MD5

      578c76503d19e73f7a935cdfb1a4108e

    • SHA1

      74644b49ebeb844cfa821fe70251f8e56ac6e112

    • SHA256

      3e5e23c0adf484b96a726f9ecdbd4a3089ad7f8979329616b73e521825e183ae

    • SHA512

      52b1cb29234be0e46a90cc26f8ac9ad6ff45887f80fbaf20da53bce7c9530111778317aaa393e6e94fe97f3f15372a0de869f709e768f278bd74ba989599ca0d

    • SSDEEP

      768:54PXdrAREaTeqsZ+93ArVC7UpbJss0JAKEKFXsojUIFI5A29+FKn2g5Fh2O:54Pa1swmfNIOKEKSY29tnxhz

    Score
    10/10
    chimeradefense_evasiondiscoveryevasionpersistenceransomwarespywarestealer

    • Chimera

      Ransomware which infects local and network files, often distributed via Dropbox links.

      ransomwarechimera

    • Chimera Ransomware Loader DLL

      Drops/unpacks executable file which resembles Chimera's Loader.dll.

      ransomware

    • Renames multiple (3283) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Disables Task Manager via registry modification

      evasion

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Modifies WinLogon

      persistence

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

3
T1112

Subvert Trust Controls

1
T1553

SIP and Trust Provider Hijacking

1
T1553.003

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

2
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Defacement

1
T1491

Tasks