Malicious PDF — malware analysis report

Static analysis result for SHA-256 e13953d41734c013…

MALICIOUS

PDF

38.2 KB Created: 2021-05-21 23:59:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 28cdf20ac7849e75cc37623cc56f7306 SHA-1: 8da5ae7c0938001e3b47af928233ad96e4b9e288 SHA-256: e13953d41734c0138f27cfc1c40ee2ee02254c1de5d36833a01220a7636b52a4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links, specifically targeting users with lures for game hacks and free accounts. The document body and embedded URLs reinforce this by advertising 'free Minecraft Alt Accounts' and providing links to related content. The primary malicious URL is https://netcdn.xyz/app/479516143/free-minecraft-alt-accounts-game-hack, which is identified as a known malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7010

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/free-minecraft-alt-accounts-game-hack In PDF document text
    • http://subarulegacy.com/images/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/coin-master-free-spins-deutsch-download-2021-link_GM406889139.pdfIn PDF document text
    • http://subarulegacy.com/images/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://subarulegacy.com/images/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.freenom.comHeyIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000033a3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33A3 24452 bytes
SHA-256: e09c9e133adcb8dee42f39dfff5d9a2a05a5bf30d2db472059454aee151c373d
font_01_sfnt_off00006b1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B1B 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000074cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74CC 17924 bytes
SHA-256: ca2704b96dad28857c40796bc5f3f160f1252a4638d6e656e043cddf4ab01458

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