Malicious PDF — malware analysis report

Static analysis result for SHA-256 98e12c9668f082a1…

MALICIOUS

PDF

45.9 KB Created: 2021-05-10 16:01:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 534aaee1d41f9b2db58f152e6e678a67 SHA-1: 1ad2c835a4a3b9fbea380c45550e5ab4b5a41a97 SHA-256: 98e12c9668f082a13c4d68db924a8293b5476d369adc11a1b7f095c665395a99
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 0.9927

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-coins-and-spins-online-tool-game-hack PDF link annotation
    • http://coplaltd.eu/images/coin-master-free-spin-whatsapp-group-link_GM406889139.pdfIn PDF document text
    • http://coplaltd.eu/images/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://coplaltd.eu/images/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://coplaltd.eu/images/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://coplaltd.eu/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://coplaltd.eu/images/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://coplaltd.eu/images/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://coplaltd.eu/images/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://coplaltd.eu/images/roblox-free-skin_GM431946152.pdfIn PDF document text
    • http://coplaltd.eu/images/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://coplaltd.eu/images/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://coplaltd.eu/images/coin-master-free-spins-only_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_003_off0000418f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x418F 32476 bytes
SHA-256: c2cac0ccec001f707c7b81fe3815dd87b66f3c9dc1b20a7cf43601efa5b6f649
font_01_sfnt_off0000880c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x880C 2944 bytes
SHA-256: fcfcd28869b8d6c7503d63ed8d48371ec5b580fea2733193e2acbb82b3d30a76
font_02_sfnt_off00009236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9236 18132 bytes
SHA-256: 5770a65a4ed8a40abc6da47fa935f6885b77eddd7dd52b1dc7a39247a3b65962

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