General

  • Target

    everything.exe

  • Size

    231KB

  • Sample

    240811-nrah9ssbmb

  • MD5

    5e487f250a2b0c04f06f37b6d66b29ba

  • SHA1

    68d5c6fcf314df40abf53b3462cb76dce9af887e

  • SHA256

    3dec6623a9f5488bc8fc4a3185cddd03bdda73247063875943a79dd75c5071b6

  • SHA512

    1f428c57ee5d53fbe590f12f3e345715b528c5aaa5e971e30fe760d9bf8660a09c1dbf7f94b73c5131c4261163e2fb6932a71ccf67b1a319f0dd1b06af823e54

  • SSDEEP

    6144:hloZM+rIkd8g+EtXHkv/iD4EmQIkqNlOhLWU1pAe4dnb8e1mAYVi:ToZtL+EP8EmQIkqNlOhLWU1pAdpd

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1271859202385510516/pTwQpNwcygYE0wG_rK1k-m1UL93sqpTzx3wjCGeEq8TF4IINEpBCY1VQKYVlKstu2UV9

Targets

    • Target

      everything.exe

    • Size

      231KB

    • MD5

      5e487f250a2b0c04f06f37b6d66b29ba

    • SHA1

      68d5c6fcf314df40abf53b3462cb76dce9af887e

    • SHA256

      3dec6623a9f5488bc8fc4a3185cddd03bdda73247063875943a79dd75c5071b6

    • SHA512

      1f428c57ee5d53fbe590f12f3e345715b528c5aaa5e971e30fe760d9bf8660a09c1dbf7f94b73c5131c4261163e2fb6932a71ccf67b1a319f0dd1b06af823e54

    • SSDEEP

      6144:hloZM+rIkd8g+EtXHkv/iD4EmQIkqNlOhLWU1pAe4dnb8e1mAYVi:ToZtL+EP8EmQIkqNlOhLWU1pAdpd

    • Detect Umbral payload

    • Umbral

      Umbral stealer is an opensource moduler stealer written in C#.

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Drops file in Drivers directory

    • Reads user/profile data of web browsers

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

    • 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.

MITRE ATT&CK Enterprise v15

Tasks