Overview

overview

10

Static

static

3

AstroBootS...pd.exe

windows10-2004-x64

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General

  • Target

    AstroBootStrapper_upd.exe

  • Size

    35.3MB

  • Sample

    240727-bzfzssycmj

  • MD5

    6366596bda3516a281a91c2c10217f5f

  • SHA1

    2029a7837a7aecc36e453ac7accaaf60be851a0e

  • SHA256

    a02eef7ae229cfab507ec2a39994995ea8d905b6ded899b86aa2b64f50046b79

  • SHA512

    e98f7e718fd97e1affa6cd591bb272bad0fea77d08a014d4075cfa0e82c0b270dea242e47541e37864518fa0dc356c16eb95b39c72a7c49513028db822e8cb8f

  • SSDEEP

    786432:NUufa9gYBzTKPkwETf5bPBnB7294tGiNFeGl9jPlyTiS2j+S0mLzSqvZD:bfayKUuTfFPK94GiuGrjPloijT0O2qvp

Score
10/10
xwormdiscoverypyinstallerransomwarerattrojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

147.185.221.21:37029

Mutex

ImJIbbArI7SKOVwD

Attributes
  • Install_directory

    %AppData%

  • install_file

    ctfmon.exe

aes.plain

Targets

    • Target

      AstroBootStrapper_upd.exe

    • Size

      35.3MB

    • MD5

      6366596bda3516a281a91c2c10217f5f

    • SHA1

      2029a7837a7aecc36e453ac7accaaf60be851a0e

    • SHA256

      a02eef7ae229cfab507ec2a39994995ea8d905b6ded899b86aa2b64f50046b79

    • SHA512

      e98f7e718fd97e1affa6cd591bb272bad0fea77d08a014d4075cfa0e82c0b270dea242e47541e37864518fa0dc356c16eb95b39c72a7c49513028db822e8cb8f

    • SSDEEP

      786432:NUufa9gYBzTKPkwETf5bPBnB7294tGiNFeGl9jPlyTiS2j+S0mLzSqvZD:bfayKUuTfFPK94GiuGrjPloijT0O2qvp

    Score
    10/10
    xwormdiscoverypyinstallerransomwarerattrojan

    • 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 Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Sets desktop wallpaper using registry

      ransomware

    • Suspicious use of SetThreadContext

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Browser Information Discovery

1
T1217

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1
T1491

Resource Development

Reconnaissance

Tasks