Overview

overview

10

Static

static

1

fe7c4b36fc...80.exe

windows7-x64

10

fe7c4b36fc...80.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fe7c4b36fca4fdf53789979a4a09c880.exe

  • Size

    50KB

  • Sample

    240419-f92rgabb5t

  • MD5

    fe7c4b36fca4fdf53789979a4a09c880

  • SHA1

    89caf7f3b9f4d7d732ade5593e1958f6f025afa1

  • SHA256

    1b3711717d430ce33222b97fe8ec692741b7ac8bd9bfb4c2c975ae2f46b37470

  • SHA512

    e0668f6dfda991ab07870d53ce291f73d48533c44dfed1178c8b98b57c799eb77f19451bc70d09caaf757bf18ef6217b44e7fc626b38c89261dc8920796339f3

  • SSDEEP

    768:mDrJUAkwf3ppZuBdrm+KiPxWEh9HgPxWEjj4G:8rkwf3ppZRsPxZgPx94G

Score
10/10
chaoshermeticwiperxwormzgratbootkitpersistenceransomwarerattrojanupxwiper

Malware Config

Extracted

Family

xworm

Version

3.1

C2

gamemodz.duckdns.org:6969

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Targets

    • Target

      fe7c4b36fca4fdf53789979a4a09c880.exe

    • Size

      50KB

    • MD5

      fe7c4b36fca4fdf53789979a4a09c880

    • SHA1

      89caf7f3b9f4d7d732ade5593e1958f6f025afa1

    • SHA256

      1b3711717d430ce33222b97fe8ec692741b7ac8bd9bfb4c2c975ae2f46b37470

    • SHA512

      e0668f6dfda991ab07870d53ce291f73d48533c44dfed1178c8b98b57c799eb77f19451bc70d09caaf757bf18ef6217b44e7fc626b38c89261dc8920796339f3

    • SSDEEP

      768:mDrJUAkwf3ppZuBdrm+KiPxWEh9HgPxWEjj4G:8rkwf3ppZRsPxZgPx94G

    Score
    10/10
    chaosxwormzgratpersistenceransomwarerattrojanhermeticwiperbootkitupxwiper

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • 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.

      wiper

    • Detect Xworm Payload

    • Detect ZGRat V1

    • HermeticWiper

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

      wiperhermeticwiper

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • ZGRat

      ZGRat is remote access trojan written in C#.

      ratzgrat

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

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

      upx

    • Adds Run key to start application

      persistence

    • 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.

      bootkitpersistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

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

2
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks