Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ec24f42948523f3…

MALICIOUS

PDF

41.6 KB Created: 2021-05-11 07:53:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4cf8c8963c310f67f2f1b0b2f268894c SHA-1: e7aba16ebcea91512935bd657b09afab5afc05ad SHA-256: 8ec24f42948523f3580d99e665b624bb144687ddbd21e43a501b7f406943ac85
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 0.9971

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/free-spin-link-of-coin-master-game-hack PDF link annotation
    • http://enosiderma.gr/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://enosiderma.gr/images/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://enosiderma.gr/images/coin-master-spin-hack-pc_GM406889139.pdfIn PDF document text
    • http://enosiderma.gr/images/how-you-get-robux_GM431946152.pdfIn PDF document text
    • http://enosiderma.gr/images/free-robux_GM431946152.pdfIn PDF document text
    • http://enosiderma.gr/images/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://enosiderma.gr/images/free-free-robux_GM431946152.pdfIn PDF document text
    • http://enosiderma.gr/images/how-to-get-coin-master-card-free_GM406889139.pdfIn PDF document text
    • http://enosiderma.gr/images/free-spins-and-coins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://enosiderma.gr/images/coin-master-spins-free-2021_GM406889139.pdfIn PDF document text
    • http://enosiderma.gr/images/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://enosiderma.gr/images/hackear-coin-master-sin-verificacion_GM406889139.pdfIn PDF document text
    • http://enosiderma.gr/images/robuxy-com-generator_GM431946152.pdfIn PDF document text
    • http://enosiderma.gr/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://enosiderma.gr/images/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • http://enosiderma.gr/images/free-robux-android_GM431946152.pdfIn PDF document text
    • http://enosiderma.gr/images/coin-master-hack-cheat-engine_GM406889139.pdfIn PDF document text
    • http://enosiderma.gr/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://enosiderma.gr/images/real-robux-generator_GM431946152.pdfIn PDF document text
    • http://enosiderma.gr/images/bloxpage-free-robux_GM431946152.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
stream_003_off000048c4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48C4 24856 bytes
SHA-256: 46b66708fb237781a17768defe85d56b3dce1d6d72ac1c2ca52e60e69d28d278
font_01_sfnt_off000080cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80CC 18056 bytes
SHA-256: 356c08646bfbef9f69d0ba55babd40c7485a9f64db237320543c80bb2a18a5c5

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