Malicious PDF — malware analysis report

Static analysis result for SHA-256 d39b5a9984bf2350…

MALICIOUS

PDF

45.1 KB Created: 2021-05-12 07:38:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a037ba2e12b4b1d26954a62ed0346541 SHA-1: 3d96a1c637c62eda70e578d751a2220e55af5508 SHA-256: d39b5a9984bf23501f3cd8d042545789662d0108ab8f4d36420428f81c7a1736
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 0.9621

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/get-minecraft-for-free-game-hack PDF link annotation
    • http://stitqi.ac.id/website//repository/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-2021-free-spins-link_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/mcpe-116_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/unlimited-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-cards_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/claimrobux-net_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-daily-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-cheat-generator-d_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/roblox-verification_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/se-puede-hackear-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_off00004bf1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BF1 25420 bytes
SHA-256: 756243d57c7c9e66c5d0257545b75d2ba74b9b4d21fa9363df5366ed7017a325
font_01_sfnt_off0000856e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x856E 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00008f7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F7E 17712 bytes
SHA-256: 35f99bfb73b52248bbdf58e6e807942ea3200a6c0759a8418b864f3a1fae0a50

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