Malicious PDF — malware analysis report

Static analysis result for SHA-256 035d3a8891e2145a…

MALICIOUS

PDF

44.5 KB Created: 2021-05-11 15:08:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 6111d4cfcc1c02957c8a27562616a9b1 SHA-1: a7a3a1d0639affe7b08efc5b3fd659f953c62e54 SHA-256: 035d3a8891e2145acdc7de293041b532a003c66fee6ed857e18b3178cfe7bdf7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The primary link, 'https://netcdn.xyz/app/479516143/hacks-for-minecraft-bedrock-game-hack', is associated with a game hack lure. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest an attempt to redirect users to malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/479516143/hacks-for-minecraft-bedrock-game-hack In PDF document text
    • http://viemeo.fr/images/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • http://viemeo.fr/images/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
    • http://viemeo.fr/images/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/free-attacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/minecraft-ore-finder-mod_GM479516143.pdfIn PDF document text
    • http://viemeo.fr/images/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • http://viemeo.fr/images/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a19.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A19 24460 bytes
SHA-256: 4a9c7031115040f1674e38bf1a7cb56c531b9d05669ebb4467a58120e539758a
font_01_sfnt_off0000816c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x816C 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008b57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B57 18268 bytes
SHA-256: 92f6e8526b02627b1408819f1618724de120737fe6927f0c4c019a746b3c5a34

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