Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1c0e1047c3b8cca…

MALICIOUS

PDF

44.6 KB Created: 2021-05-19 04:41:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2be87c28c9a478ce216f6ba6ce40329b SHA-1: dc4bbf24221e1d64e0a624f36cced7405a1807b6 SHA-256: e1c0e1047c3b8ccaabc61815e43879cd16dd9ec27438a56a92da753ca1514797
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 0.9632

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/best-site-for-free-coin-master-free-spins-game-hack PDF link annotation
    • https://naturenz.vn/public/files/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • https://naturenz.vn/public/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://naturenz.vn/public/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://naturenz.vn/public/files/free-robux-please_GM431946152.pdfIn PDF document text
    • https://naturenz.vn/public/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://naturenz.vn/public/files/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • https://naturenz.vn/public/files/coin-blogspot_GM406889139.pdfIn PDF document text
    • https://naturenz.vn/public/files/what-do-points-do-in-roblox_GM431946152.pdfIn PDF document text
    • https://naturenz.vn/public/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://naturenz.vn/public/files/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://naturenz.vn/public/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://naturenz.vn/public/files/coin-master-jackpot-hack_GM406889139.pdfIn PDF document text
    • https://naturenz.vn/public/files/free-roblox-scripts_GM431946152.pdfIn PDF document text
    • https://naturenz.vn/public/files/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://naturenz.vn/public/files/free-roblox-premium_GM431946152.pdfIn PDF document text
    • https://naturenz.vn/public/files/roblox-free-wings_GM431946152.pdfIn PDF document text
    • https://naturenz.vn/public/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://naturenz.vn/public/files/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • https://naturenz.vn/public/files/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • https://naturenz.vn/public/files/como-hackear-juego-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_003_off00004af0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AF0 24248 bytes
SHA-256: c452f556c8820437a5d372cde3fad365b95fc57cf409304a62965cc4b72dfd0f
font_01_sfnt_off00008255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8255 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008c3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C3F 18104 bytes
SHA-256: 879ff18a357a82badab2459f221a11f7b700cc3f508e85be5618259a1268201a

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