Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1739988c0332cc4…

MALICIOUS

PDF

37.0 KB Created: 2021-05-20 15:19:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 965830da7050e44904cae2315fb0e3e4 SHA-1: be72fbe48ba7dd51c84a27bc9865eeaa50396d27 SHA-256: d1739988c0332cc49bb4c8278270580ac39a4620e041cae546a1ba40efab9307
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that are flagged as malicious redirectors, specifically promoting 'free Robux' or 'game hacks'. The document body and heuristics indicate a lure to external malicious sites, likely for phishing or to download further malware. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/431946152/how-to-get-free-robux-no-survey-game-hack In PDF document text
    • http://awakeningtruth.org/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://awakeningtruth.org/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.awakeningtruth.org/images/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://www.awakeningtruth.org/images/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • http://awakeningtruth.org/images/roblox-adopt-me-hacks-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_off0000350a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x350A 24924 bytes
SHA-256: 18a133089a88077f7d42f91721b01256b8ed3329f70250aef72492e17d6a2a63
font_01_sfnt_off00006e6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E6D 18576 bytes
SHA-256: 4e9b11cd56806b44a111e59337afa2364f0ba527e2b4797dd95234ca7f902292

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