Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba89c02ac951d7d…

MALICIOUS

PDF

28.5 KB Created: 2021-06-18 02:29:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1ea5aafae2f582086bccfdd4b2a6a14c SHA-1: 4fb57c0362df70ee46d69fb8afab79ccb582a1b2 SHA-256: aba89c02ac951d7d6872cbf3adf7c0ac9930672384571b8363707e0482e62e5c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/hack-promo-codes-roblox-game-hack. The document body and extracted URLs suggest a lure related to game hacks and free in-game currency, a common social engineering tactic. While no scripts were explicitly extracted, the presence of embedded URLs and the heuristic firings indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 3

  • 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.
  • 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/hack-promo-codes-roblox-game-hack In PDF document text
    • http://repository.ummy.ac.id//repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/free-robux-website-that-works-no-generator_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/coin-master-free-spin-links-december-30-2021_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/roblox-free-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/roblox-the-quarry-cheats_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/how-to-make-shirts-for-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/roblox-noot-noot-hack-song-roblox-id_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/roblox-protosmasher-download-free_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://repository.ummy.ac.id/repository/roblox-wikia-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://repository.ummy.ac.id//repository/pokemon-go-free-gifts_GM1094591345.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D3E 21632 bytes
SHA-256: 33fad948ed81a626946621ba0197ee05b0f488d7a954c0202f2cd243d960ae74

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