Malicious PDF — malware analysis report

Static analysis result for SHA-256 3291d2983eff5239…

MALICIOUS

PDF

42.9 KB Created: 2021-05-16 14:18:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 21b22e6174aa14a9d008173cbcc62d0f SHA-1: 14364274c61ecbc915ae48256d023ecc2efd65c7 SHA-256: 3291d2983eff5239a19833da83071442778cca53865fc06a7bf0f8a3a3168a69
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to websites offering game hacks and generators, a common lure for phishing or malware distribution. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. While no scripts were explicitly extracted, the nature of the lures suggests a potential for JavaScript execution or redirection to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/how-to-use-scripts-in-roblox-hack-game-hack PDF link annotation
    • https://hbln.org.au/images/free-links-coin-master_GM406889139.pdfIn PDF document text
    • https://hbln.org.au/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://hbln.org.au/images/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • https://hbln.org.au/images/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://hbln.org.au/images/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • https://hbln.org.au/images/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://hbln.org.au/images/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
    • https://hbln.org.au/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://hbln.org.au/images/coin-master-ios-hack-download_GM406889139.pdfIn PDF document text
    • https://hbln.org.au/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://hbln.org.au/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://hbln.org.au/images/free-robux-site_GM431946152.pdfIn PDF document text
    • https://hbln.org.au/images/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdfIn PDF document text
    • https://hbln.org.au/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • https://hbln.org.au/images/coin-master-hacks-for-pet-food_GM406889139.pdfIn PDF document text
    • https://hbln.org.au/images/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • https://hbln.org.au/images/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • https://hbln.org.au/images/coin-master-free_GM406889139.pdfIn PDF document text
    • https://hbln.org.au/images/coin-master-hack-progamers_GM406889139.pdfIn PDF document text
    • https://hbln.org.au/images/rbxoffers-earn-free-robux_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
stream_003_off00004734.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4734 26260 bytes
SHA-256: cd206d0caa4438701aebee87481b66de0aaabbdf37768bdc53fa66c416c34553
font_01_sfnt_off00008333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8333 18932 bytes
SHA-256: fce9e652f89a1af62f774ff2b7937cf54d78de2903c3939778e1916a8682391a

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