Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebf242b439e3f5b0…

MALICIOUS

PDF

46.3 KB Created: 2021-05-12 18:05:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 25048ea9763ac1b0a34014dd60e05bd4 SHA-1: 065d8e070843b5634bb389ebcaf7ee1e820a69cc SHA-256: ebf242b439e3f5b04d52675d57428c6377dc2916138c965d9cd7305ebf66b8c5
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 0.8696

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-hack-app-game-hack PDF link annotation
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/giftrobux-com-generator_GM431946152.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/toolbox-apk_GM479516143.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/get-free-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/get-gold-coin-master-village-hack_GM406889139.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/make-robux_GM431946152.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/rbx-website_GM431946152.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • https://elearning.matsada.sch.id/__statics/gudangsoal/files/free-robux-roblox-promo-codes_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_003_off00004d7c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D7C 25052 bytes
SHA-256: 58d55ea7e06fd9d867b9e2db1956b2c338480e002c6a9f555fd9f78cf75140ce
font_01_sfnt_off0000861e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x861E 4020 bytes
SHA-256: dbaa9c12d07f3632734605f1d5d6dee3ad5af1f57488e46d95dab68b383f08c5
font_02_sfnt_off000093a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93A5 17892 bytes
SHA-256: f939fda97690d6a809d743b342add8ec97984f5e978608423f32dd39679c4d64

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