Overview

overview

10

Static

static

3

bee3166e-e...1c.exe

windows7-x64

10

bee3166e-e...1c.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    bee3166e-ee10-4712-aa10-231525ee781c.exe

  • Size

    304KB

  • Sample

    240802-ber7bs1djh

  • MD5

    2fd79512c600edbc47f42f89bbffff48

  • SHA1

    02d9621591090f4c15469ecdc7c14360a6d07977

  • SHA256

    a5106a4962c79d0edad85a7999939c0eccde0225a68ac5a150e7b4ebfcb360e3

  • SHA512

    471299c6b15c8b2cdc74ca04cea7b53d467d0d480dbe467072c276256ea6cd4b0b25744900387221a61465f09119eecda4292f1d4c78afdc01cc61e7d0d1042d

  • SSDEEP

    6144:4zWPYSc7LT8VFna9pXysJkIddwXQeYBayx4MRzuKj7q6idKaMAXZFi:4z4s0Fa9IsJ3Fgg4HKjWKaMk7i

Score
10/10
chaosdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      bee3166e-ee10-4712-aa10-231525ee781c.exe

    • Size

      304KB

    • MD5

      2fd79512c600edbc47f42f89bbffff48

    • SHA1

      02d9621591090f4c15469ecdc7c14360a6d07977

    • SHA256

      a5106a4962c79d0edad85a7999939c0eccde0225a68ac5a150e7b4ebfcb360e3

    • SHA512

      471299c6b15c8b2cdc74ca04cea7b53d467d0d480dbe467072c276256ea6cd4b0b25744900387221a61465f09119eecda4292f1d4c78afdc01cc61e7d0d1042d

    • SSDEEP

      6144:4zWPYSc7LT8VFna9pXysJkIddwXQeYBayx4MRzuKj7q6idKaMAXZFi:4z4s0Fa9IsJ3Fgg4HKjWKaMk7i

    Score
    10/10
    chaosdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealer

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (199) files with added filename extension

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

      ransomware

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Disables Task Manager via registry modification

      evasion

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • 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

    • Deobfuscate/Decode Files or Information

      Payload decoded via CertUtil.

      defense_evasion

    • Drops desktop.ini file(s)

    • 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

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

Deobfuscate/Decode Files or Information

1
T1140

Direct Volume Access

1
T1006

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

2
T1112

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

Peripheral Device Discovery

1
T1120

Query Registry

3
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

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

4
T1490

Tasks