chaos | 3f37eba38f0d399f33a98df657f9632d489dd10ba9741e2ba9e0b2056ef90124 | Triage

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Overview

overview

Static

static

2024-10-06...ry.exe

windows7-x64

2024-10-06...ry.exe

windows10-2004-x64

Sharing

General

Target

2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry
Size

266KB
Sample

241007-aav7raxdpa
MD5

27155b7a69ea88dc9419bc41c888c71c
SHA1

8b9ac105e975c9c22b731703dc080427f8973bf9
SHA256

3f37eba38f0d399f33a98df657f9632d489dd10ba9741e2ba9e0b2056ef90124
SHA512

75d08dd318ddc8a59dd65e5fcfc4a2f8ec8bd42a08b23acdc566d8adf73101f905b9d0c4631fa863f9b9dec92b996b742e95e1f28700689391181fc618bfc940
SSDEEP

3072:2c9/eQxG5h7KMjlen9O0uE8o15OJlDUZbUVnWB3P1tPBLazb5YHPYvijQts1vlKC:2c9WQA70fO/yXBttPtFIEh1lVK/

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Static task

static1

3 signatures

Behavioral task

behavioral1

Sample

2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe

Resource

win7-20240708-en

chaos defense_evasion evasion execution impact ransomware spyware stealer

windows7-x64

20 signatures

150 seconds

Behavioral task

behavioral2

Sample

2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry.exe

Resource

win10v2004-20240802-en

chaos defense_evasion evasion execution impact ransomware spyware stealer

windows10-2004-x64

23 signatures

150 seconds

Malware Config

Targets

- Target
  
  2024-10-06_27155b7a69ea88dc9419bc41c888c71c_wannacry
- Size
  
  266KB
- MD5
  
  27155b7a69ea88dc9419bc41c888c71c
- SHA1
  
  8b9ac105e975c9c22b731703dc080427f8973bf9
- SHA256
  
  3f37eba38f0d399f33a98df657f9632d489dd10ba9741e2ba9e0b2056ef90124
- SHA512
  
  75d08dd318ddc8a59dd65e5fcfc4a2f8ec8bd42a08b23acdc566d8adf73101f905b9d0c4631fa863f9b9dec92b996b742e95e1f28700689391181fc618bfc940
- SSDEEP
  
  3072:2c9/eQxG5h7KMjlen9O0uE8o15OJlDUZbUVnWB3P1tPBLazb5YHPYvijQts1vlKC:2c9WQA70fO/yXBttPtFIEh1lVK/
Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer
- Chaos
  Ransomware family first seen in June 2021.
  ransomware chaos
- Chaos Ransomware
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware defense_evasion impact execution
- Modifies boot configuration data using bcdedit
  ransomware evasion
- Deletes backup catalog
  Uses wbadmin.exe to inhibit system recovery.
  ransomware
- Disables Task Manager via registry modification
  evasion
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- 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.
  spyware stealer
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
  ransomware
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

Windows Management Instrumentation

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

Indicator Removal

File Deletion

Modify Registry

Credential Access

Credentials from Password Stores

Credentials from Web Browsers

Unsecured Credentials

Credentials In Files

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Data from Local System

Command and Control

Exfiltration

Impact

Defacement

Inhibit System Recovery

Tasks

static1

behavioral1

chaosdefense_evasionevasionexecutionimpactransomwarespywarestealer

behavioral2

chaosdefense_evasionevasionexecutionimpactransomwarespywarestealer

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