Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b49611f946cf2da…

MALICIOUS

PDF

35.8 KB Created: 2021-06-20 14:28:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 0f8cc092ddf623bdc703284f54c8e1b2 SHA-1: 1488ada2f7e0bdd2e1378ecd66a93bc4dc62faec SHA-256: 3b49611f946cf2daefbf0a5445916ab55c8a6bfb9896dc21a7f157431192cafc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and references to 'free Robux' and game hacks, a common lure for phishing and malware distribution. The primary external URI, http://netcdn.co/app/431946152/lohith-gaming-how-to-get-free-robux-game-hack, is likely a redirector to malicious content. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to drive users to external sites for exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/lohith-gaming-how-to-get-free-robux-game-hack PDF link annotation
    • https://www.impactlive.ca/userfiles/files/free-robux-generator5_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/free-stuff-in-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/free-roblox-accounts-forums_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/break-free-super-mario-odyssey-roblox-id-codes_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/roblox-cool-outfits-free_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/http-cheatonlineeu-robloxrobuxhackforfreeproofs_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/every-free-item-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/how-to-hack-roblox-apocalypse-rising_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/free-roblox-codes-murder-mystery-2_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/can-you-charge-robux-if-you-are-free-user_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/roblox-passwort-hack_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/roblox-hack-robux-2021-apk_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/roblox-gravity-hack-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/free-roblox-exploit-scripts-for-executor_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/auto-redeem-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/free-roblox-printables_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/how-to-hack-roblox-admin-commands-script_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/easy-robux-today-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32DF 22708 bytes
SHA-256: ebfdb743b8ed697fbb237bf19510213c07ccfce27dff36ab436bced12d0cbfad
font_01_sfnt_off0000657d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x657D 19528 bytes
SHA-256: 833e07821ab0c84d2be6668b766d40a354a601c65a7f27f82675fbb01e0dfc4b

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