Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e165d3756871b63…

MALICIOUS

PDF

33.8 KB Created: 2021-06-17 18:31:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 65348a43f78aad375aee799f66f99e73 SHA-1: bd21251ca49c5fea392269a91047075f7aae0f14 SHA-256: 5e165d3756871b63d3fe902fb1909ad6c79101a9a3a38354093ef3e2b297fba7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting game hacks and generators. The presence of a visual download button and the lure of free game hacks indicate a social engineering tactic to trick users into visiting malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt.

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/roblox-free-gui-game-hack In PDF document text
    • http://bgnails.nl/images/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • http://bgnails.nl/images/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/roblox-hack-robux-online_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/coin-master-free-spin-and-trading-group_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://bgnails.nl/images/robux-codes_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/free-fans-on-tiktok_GM835599320.pdfIn PDF document text
    • http://bgnails.nl/images/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • http://bgnails.nl/images/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://bgnails.nl/images/coin-master-free-spins-link-facebook-page_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/roblox-hack-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/free-minecraft-skins-pc_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_off00002e0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E0E 22568 bytes
SHA-256: 5e5900e013690088110b606d886de5155a1dbc554c38d0ccf774719be1a25a54
font_01_sfnt_off00006003.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6003 18724 bytes
SHA-256: 19363813e90fe3003c1b0c1be394d7a4ef9f7775020ad865e41d902e466cef0b

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