General

  • Target

    c5fb0780d04345cf24bcb21baf3e833c9b1591d17989918d520b130e871bc0bc

  • Size

    255KB

  • Sample

    221124-gasj7acb87

  • MD5

    91cce18dd72b826d31a9bba6519aec8c

  • SHA1

    7c5915088642e7637c74a54453b32619201b8304

  • SHA256

    c5fb0780d04345cf24bcb21baf3e833c9b1591d17989918d520b130e871bc0bc

  • SHA512

    956f01171358d45a48f2e55d05e0ace3b9a885010a67c566045f017c5c1b2ca82904e9b5293c738b98532a11b79e98dd29ad32dd79fc18636896a67e2a027c86

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJH:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIc

Malware Config

Targets

    • Target

      c5fb0780d04345cf24bcb21baf3e833c9b1591d17989918d520b130e871bc0bc

    • Size

      255KB

    • MD5

      91cce18dd72b826d31a9bba6519aec8c

    • SHA1

      7c5915088642e7637c74a54453b32619201b8304

    • SHA256

      c5fb0780d04345cf24bcb21baf3e833c9b1591d17989918d520b130e871bc0bc

    • SHA512

      956f01171358d45a48f2e55d05e0ace3b9a885010a67c566045f017c5c1b2ca82904e9b5293c738b98532a11b79e98dd29ad32dd79fc18636896a67e2a027c86

    • SSDEEP

      3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJH:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIc

    • Modifies visibility of file extensions in Explorer

    • Modifies visiblity of hidden/system files in Explorer

    • Windows security bypass

    • Disables RegEdit via registry modification

    • Executes dropped EXE

    • UPX packed file

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

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Windows security modification

    • Adds Run key to start application

    • Enumerates connected drives

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

    • Modifies WinLogon

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Winlogon Helper DLL

1
T1004

Defense Evasion

Hidden Files and Directories

2
T1158

Modify Registry

7
T1112

Disabling Security Tools

2
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Tasks