General

  • Target

    f267a71692c3683e3d6d0461e003f54f.exe

  • Size

    2.3MB

  • Sample

    240407-jcc9dsga2z

  • MD5

    f267a71692c3683e3d6d0461e003f54f

  • SHA1

    189450a513d1f2412470eb965468f1324633d252

  • SHA256

    74531f459fdb6837669583dc731b7a6afad5378782ab8bca5d726edac753f251

  • SHA512

    b376166646548104ee092beba9af8af5a04695f828e1a1b21ccdfd8a1cb88347a40f31108066d0fe6176a5ce18bf3ef3b8ce4e82a6c6a6ee886efe2bfa7a7bd7

  • SSDEEP

    49152:qjOIzFMNQnXmsIi7MS4bdotKHDG/GGcYsKYX78Y5Ye3:qjvzFMNQnWspj4bdot45GdsKYXl5Yo

Malware Config

Extracted

Family

xworm

Version

3.1

C2

gamemodz.duckdns.org:6969

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Targets

    • Target

      f267a71692c3683e3d6d0461e003f54f.exe

    • Size

      2.3MB

    • MD5

      f267a71692c3683e3d6d0461e003f54f

    • SHA1

      189450a513d1f2412470eb965468f1324633d252

    • SHA256

      74531f459fdb6837669583dc731b7a6afad5378782ab8bca5d726edac753f251

    • SHA512

      b376166646548104ee092beba9af8af5a04695f828e1a1b21ccdfd8a1cb88347a40f31108066d0fe6176a5ce18bf3ef3b8ce4e82a6c6a6ee886efe2bfa7a7bd7

    • SSDEEP

      49152:qjOIzFMNQnXmsIi7MS4bdotKHDG/GGcYsKYX78Y5Ye3:qjvzFMNQnWspj4bdot45GdsKYXl5Yo

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Detect HermeticWiper

      Detect HermeticWiper Payload.

    • Detect Xworm Payload

    • Detect ZGRat V1

    • HermeticWiper

      HermeticWiper is a partition-corrupting malware used in cyberattacks against Ukrainian organizations.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Xworm

      Xworm is a remote access trojan written in C#.

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • Drops file in Drivers directory

    • Manipulates Digital Signatures

      Attackers can apply techniques such as modifying certain DLL exports to make their binary seem valid.

    • 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.

    • UPX packed file

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

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • Looks up external IP address via web service

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

    • Writes to the Master Boot Record (MBR)

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

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Replication Through Removable Media

1
T1091

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

System Information Discovery

1
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Data from Local System

1
T1005

Tasks