Malicious PDF — malware analysis report

Static analysis result for SHA-256 a69fc7d1c3c18505…

MALICIOUS

PDF

36.1 KB Created: 2021-05-21 18:52:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dad6c7d91c444c2275734185f1ae268b SHA-1: f375da2eea9f5cf1a6fcd0a99e3770b4f70108fc SHA-256: a69fc7d1c3c185050baacd178deb499d9cbfe37476e74bcb9835da7830434320
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 spins'. The document body and heuristics indicate a lure to trick users into clicking these links, which likely leads to a scam or a second-stage malware download. No scripts were extracted, but the embedded links are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/406889139/daily-free-spins-on-coin-master-game-hack In PDF document text
    • http://precisionheavyhaul.com/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/coin-master-free-spins-daily-link-game-mod_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-robux-generator-2021_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032f7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32F7 24996 bytes
SHA-256: b200965939d40b76a8a9082aace9df8ed78e7a2d53c092ef5fb9eb90ba7d364d
font_01_sfnt_off00006b9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B9C 18308 bytes
SHA-256: 1bc93d0bdf7bcc9dde046a772a1d5e318036c000a48b0748ebe0e6d1e12db192

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