Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e1f00632763b9a1…

MALICIOUS

PDF

48.1 KB Created: 2021-06-04 04:39:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c604e44aa4964b47ff69c7d8ce95a1b2 SHA-1: 07c6ef8d2f3e4d4dcaa900d50edc39662702d0f4 SHA-256: 8e1f00632763b9a1a1fd571e59c3d4cc7e36905612ebdb120a96159216816d0d
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 0.9796

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.online/app/406889139/free-spin-coin-master-hacktoman-game-hack PDF link annotation
    • http://opac.stiesa.ac.id/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-hack-programers_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/pubg-uc-price_GM1330123889.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-tiktok-followers-no-human-verification_GM835599320.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-roblox-boy-hair_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/minecraft-modded-client_GM479516143.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/pubg-uc-zip_GM1330123889.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/get-free-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/robux-hack-2021_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000541d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x541D 26304 bytes
SHA-256: b3a7480081ceef01728c06f99a60a7c7c8af9d10bb5ca02067480c844d32e574
font_01_sfnt_off00008f5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F5C 2880 bytes
SHA-256: b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
font_02_sfnt_off00009946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9946 18316 bytes
SHA-256: a162431701ad9c50befa351cb2f766b34b20a7e8a0fbff5e47df8aa15cd4efd7

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