Malicious PDF — malware analysis report

Static analysis result for SHA-256 726eaa39bf16bfcf…

MALICIOUS

PDF

44.6 KB Created: 2021-05-12 11:36:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a373085550ef86bbe029781375883715 SHA-1: 09918738b16b562e12ba695341f459be5d57f26f SHA-256: 726eaa39bf16bfcf469a8edbf6a589b841305741f138541bd0bbd53c4c487e2d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector domains, including one promising a 'free game hack'. The ML classifier also flagged this PDF as malicious. The embedded URLs likely lead to further malicious content or phishing pages, and the document body's garbled nature suggests it's designed to obscure its true malicious intent. No scripts were extracted, but the primary attack vector appears to be social engineering via deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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-pe-server-hosting-free-game-hack In PDF document text
    • http://asiashop-france.fr/images/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/roblox-robux_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/coin-master-offline-hack_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/50-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/free-robux-earn_GM431946152.pdfIn PDF document text
    • http://asiashop-france.fr/images/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • http://asiashop-france.fr/images/coin-master-daily-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://www.youtIn 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_off0000498b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x498B 29964 bytes
SHA-256: b782a2efc82c958305f986dce24027bbae8c90531ec2f72ea64e8cbd98addbf9
font_01_sfnt_off00008c4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C4F 18264 bytes
SHA-256: 5ec3f0b561cebc5d47f64e939320a46a649b92723dcace5f5f230f044584545d

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