Malicious PDF — malware analysis report

Static analysis result for SHA-256 57e25f85787df5e3…

MALICIOUS

PDF

41.7 KB Created: 2021-05-21 16:46:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b1b496b4d9c70451338eb19fadd57d3c SHA-1: 17f2100162870fb64733e69dce223ed44314ee5f SHA-256: 57e25f85787df5e3a6af6eb92b994d87b49be0c9b4b7f3d06e3e3a9487adc3b5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free Minecraft skins' and 'game hacks' which redirects to a malicious URL. The embedded link, 'https://netcdn.xyz/app/479516143/free-minecraft-skins-xbox-one-game-hack', is a primary indicator of this social engineering tactic. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to lead the user to a potentially harmful site, likely as part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7527

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-skins-xbox-one-game-hack PDF link annotation
    • https://sensorcamera-tw.com/upload/files/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/pokemon-go-free-stuff_GM1094591345.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/extra-free-spins-for-coin-master_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000340e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x340E 29516 bytes
SHA-256: 6c7165bf9ae95da717548676c657988df16e478e0c77473bb4b8f41a7135d90d
font_01_sfnt_off0000774f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x774F 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off0000814b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x814B 18476 bytes
SHA-256: 232ed5a85e3eb7365037632e89adcc3de647f06670efb3a8119b1009e47d113e

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