Malicious PDF — malware analysis report

Static analysis result for SHA-256 46260f13e0b6c123…

MALICIOUS

PDF

35.3 KB Created: 2021-07-01 04:20:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4d05e617555d7ff597c87d6c52633935 SHA-1: a2a9a7acaf95d9636d08f832c803bf912cd79671 SHA-256: 46260f13e0b6c123d11b4cad3ca0eda894ee587dbc8ad5c9623c8af4a15aa7c4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action lure related to game hacks and free currency, directing users to malicious redirector infrastructure. The ML classifier strongly indicated maliciousness, and the embedded URLs are associated with known malicious redirectors. The document's content and structure suggest a phishing or scam attempt to redirect users to potentially harmful sites.

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 http://netcdn.co/app/431946152/how-to-hack-roblox-free-robux-no-download-game-hack In PDF document text
    • http://foo.com.tw/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://foo.com.tw/files/roblox-animation-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/how-to-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/free-money-codes-for-roblox_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/roblox-phantom-forces-dll-hack_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/free-roblox-without-downloading_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/roblox-hack-script-animations_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/abstract-free-hack-roblox-download-safe_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/roblox-free-exploits_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/how-to-get-free-robux-2021-july_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/minecraft-bedrock-free_GM479516143.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F6 22752 bytes
SHA-256: e945d79a2cbf5c3acaa1c8ea5068f03829805c886d2d8c1ad5f95ab42cf3dd94
font_01_sfnt_off000063cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CD 19464 bytes
SHA-256: 7ead9acc0b6e14d509425ed8c3e5d70a53b6ac4b8117dd94ecd897fe8c46eb8f

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