Malicious PDF — malware analysis report

Static analysis result for SHA-256 015f831ef7034304…

MALICIOUS

PDF

43.1 KB Created: 2021-05-22 08:02:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 5d3a6888dc15e751774d8556119406a6 SHA-1: 03659c2726ed810a13072bce697ddad922c16b8e SHA-256: 015f831ef7034304d116b264f6e33ad9e259c6ae7e4355504588b3bf6ccf2aa8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8013

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/406889139/coin-master-free-spins-and-coins-blogspot-game-hack PDF link annotation
    • http://www.gearestauri.it/images/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://www.gearestauri.it/images/static-moonactive-net-link_GM406889139.pdfIn PDF document text
    • http://www.gearestauri.it/images/coin-master-free-spins-16-04-19_GM406889139.pdfIn PDF document text
    • http://www.gearestauri.it/images/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://www.gearestauri.it/images/app-for-free-spins-on-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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003501.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3501 25304 bytes
SHA-256: c95e54db0c5548190ed9d837e07109b525cd4c9caa6ad2e9cb5d906823711161
font_01_sfnt_off00006dfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFC 4028 bytes
SHA-256: a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91
font_02_sfnt_off00007b9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9D 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off0000858d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x858D 18636 bytes
SHA-256: 0f54115b9972647639797d248389657ce322f7c5c12f639c73d71ff235a73201

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