Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdf8c0be86e56026…

MALICIOUS

PDF

46.2 KB Created: 2021-05-17 10:44:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: a46236dab15a4e30f98ed2962c2859e6 SHA-1: e341f7d177b6da59a9af172c3fa412be92733e45 SHA-256: fdf8c0be86e56026cffa7edfe82d1f032b1e1f7ecaa58915c8a1be646fe99b0d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of free game hacks. The primary link, https://netcdn.xyz/app/479516143/minecraft-xbox-360-free-game-hack, is associated with a game hack generator scam. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a social engineering attack designed to lead users to potentially malicious content or further downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/minecraft-xbox-360-free-game-hack In PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/minecraft-free-reddit_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-hack-ios-apk_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c5e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C5E 24936 bytes
SHA-256: 444b7c7b83151f490092eb102d61122403f8b13d6b74b4569f7b902fdf6fab5e
font_01_sfnt_off00008612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8612 3056 bytes
SHA-256: dd24a0ab94df4552e459bd06fd01b0fd3f021c1d51d1d64407070e735974a028
font_02_sfnt_off00009085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9085 18820 bytes
SHA-256: 548eb6d6d76b0782fa129353e40cf244a6945086c4e3cc69bdc72bd715347561

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