Resubmissions

29-03-2023 03:03

230329-dj9chsee46 7

General

  • Target

    CCleaner_v5.84.9126.exe

  • Size

    24.3MB

  • Sample

    230329-dj9chsee46

  • MD5

    f5f6a78587b0daf42518a5dbf6ef028b

  • SHA1

    5fd7e0493a6ee0dd60ae2d78a0c3c2ed918f6347

  • SHA256

    a398fff09ee7b0aa3a77540e7efd3da0a9792b34fbc8820377cdb9c04dc6eb25

  • SHA512

    724725bb1b2960ae648155af4463a83c4a18672fcc4d93143498000f5330374007b6e233942f626ab5d45e614d3d782aa2fca68789a290e8a60df9ee01e05afd

  • SSDEEP

    786432:RN1dAWoyVU9uom48R5xTgWfWof+pph3Aw2I3D:RN1WAVvtVRAymnxAw2I3D

Malware Config

Targets

    • Target

      CCleaner_v5.84.9126.exe

    • Size

      24.3MB

    • MD5

      f5f6a78587b0daf42518a5dbf6ef028b

    • SHA1

      5fd7e0493a6ee0dd60ae2d78a0c3c2ed918f6347

    • SHA256

      a398fff09ee7b0aa3a77540e7efd3da0a9792b34fbc8820377cdb9c04dc6eb25

    • SHA512

      724725bb1b2960ae648155af4463a83c4a18672fcc4d93143498000f5330374007b6e233942f626ab5d45e614d3d782aa2fca68789a290e8a60df9ee01e05afd

    • SSDEEP

      786432:RN1dAWoyVU9uom48R5xTgWfWof+pph3Aw2I3D:RN1WAVvtVRAymnxAw2I3D

    • Checks computer location settings

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

    • 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.

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Writes to the Master Boot Record (MBR)

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

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Bootkit

1
T1067

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

3
T1082

Security Software Discovery

1
T1063

Collection

Data from Local System

1
T1005

Tasks