General

  • Target

    SilentXMRMinerBuilder.exe

  • Size

    44.7MB

  • Sample

    250203-xadn2a1lem

  • MD5

    9706c540dd26ade6bf85b4bbcb9f483a

  • SHA1

    f088af13fa12f99e41f748939dfeaece88546480

  • SHA256

    33192e2c62761c054586d32d3a36a37f02dc6294e0326abd252e819efeb736bc

  • SHA512

    83b4abc06b99f6fd4ec15974273e8e8490819c9feff061232e147214c8a786995e14368e1ded1ca9268a6776a6b8e6acb4454f3b0d20834c11e4d36d95d470b8

  • SSDEEP

    786432:VO8Zj0154/RAKyX4oW4SrV6cfvmKaEYxfmTTHQc7p+guPGMB78NWGm0aLMtxx790:NZwOZYX4b4SrtfeKhY9p6EvGMB78oGm4

Malware Config

Extracted

Family

stealerium

C2

https://api.telegram.org/bot7665465643:AAHovJK8wV9ZYD10sdy6ONMxUF7l77R6hlE/sendMessage?chat_id=

Attributes

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7665465643:AAHovJK8wV9ZYD10sdy6ONMxUF7l77R6hlE/getM

https://api.telegram.org/bot7665465643:AAHovJK8wV9ZYD10sdy6ONMxUF7l77R6hlE/sendMessage?chat_id=6810876826

Targets

    • Target

      SilentXMRMinerBuilder.exe

    • Size

      44.7MB

    • MD5

      9706c540dd26ade6bf85b4bbcb9f483a

    • SHA1

      f088af13fa12f99e41f748939dfeaece88546480

    • SHA256

      33192e2c62761c054586d32d3a36a37f02dc6294e0326abd252e819efeb736bc

    • SHA512

      83b4abc06b99f6fd4ec15974273e8e8490819c9feff061232e147214c8a786995e14368e1ded1ca9268a6776a6b8e6acb4454f3b0d20834c11e4d36d95d470b8

    • SSDEEP

      786432:VO8Zj0154/RAKyX4oW4SrV6cfvmKaEYxfmTTHQc7p+guPGMB78NWGm0aLMtxx790:NZwOZYX4b4SrtfeKhY9p6EvGMB78oGm4

    • Gurcu family

    • Gurcu, WhiteSnake

      Gurcu aka WhiteSnake is a malware stealer written in C#.

    • Stealerium

      An open source info stealer written in C# first seen in May 2022.

    • Stealerium family

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • 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.

    • Accesses Microsoft Outlook profiles

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

MITRE ATT&CK Enterprise v15

Tasks