Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac77d94ab8dfda74…

MALICIOUS

PDF

46.9 KB Created: 2021-05-13 22:29:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0614f791760e2554f53b8cb78c00ef15 SHA-1: 34db57a7128c765090a1f76279802c30cd27a563 SHA-256: ac77d94ab8dfda7495bd1caf0bc58755c1f56ce932ee8f4459e23b0f5e6c4e63
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites that are flagged as malicious redirectors, specifically promoting game hacks and free item scams. The document body, though partially corrupted, contains text related to downloading Minecraft and a URL that matches the malicious redirector found in the heuristics. The presence of these lures and malicious links strongly suggests an attempt to trick users into visiting harmful sites, likely for malware distribution or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/how-to-download-minecraft-java-edition-for-free-game-hack In PDF document text
    • http://elitesoftsolutions.com/images/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/free-robux-site_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/how-to-get-free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/free-diamonds-coin-master_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/free-card-link-coin-master_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/demon-roblox_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/easy-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/coin-master-map_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/coin-master-32-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/coin-master-tiradas-gratis_GM406889139.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://elitesoftsolutions.com/images/roblox-hacks-2021_GM431946152.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_off000049b2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49B2 29084 bytes
SHA-256: 9d8984cac19b7c6d7607a98120cc38bf177be66baa4f62576eaf6eb8fcdf8761
font_01_sfnt_off000089ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89ED 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off000093fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93FC 18572 bytes
SHA-256: 372950b09ae56ccdc45362242de33d197b063ee091c9df90a0e91acdbb6b8628

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