Malicious PDF — malware analysis report

Static analysis result for SHA-256 40062015bc192d1a…

MALICIOUS

PDF

35.7 KB Created: 2021-05-22 02:06:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 25224a0d48df273dd6edf6cd9c4c8df4 SHA-1: 663b96cc3d9889b532737385693c666713ba14fc SHA-256: 40062015bc192d1a57e994d10a1e0d9363739fdbcfb1a530a2b915b4a95ab6f6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, including one that masquerades as a "free Minecraft Resource Packs" generator. The document body and heuristics indicate a lure designed to trick users into clicking these links. The primary malicious URL identified is https://netcdn.xyz/app/479516143/free-minecraft-resource-packs-game-hack, which likely leads to the download of a secondary malicious payload.

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/479516143/free-minecraft-resource-packs-game-hack In PDF document text
    • http://kids-academy.pl/images/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://kids-academy.pl/images/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://kids-academy.pl/images/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://kids-academy.pl/images/how-to-block-someone-on-coin-master_GM406889139.pdfIn PDF document text
    • http://kids-academy.pl/images/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://code.giftcards.comIn 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_off00003394.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3394 24384 bytes
SHA-256: 94f35dd0cd4705cfa030eb211313ae5072340b8bd5e339dcf24c0ce6ce56979d
font_01_sfnt_off00006a7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7F 18172 bytes
SHA-256: ba55ace67aaa42a75d72a76423215630d067bde5e330a1763dcb3073f08e6856

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