Malicious PDF — malware analysis report

Static analysis result for SHA-256 11c5b98ed4332b85…

MALICIOUS

PDF

47.4 KB Created: 2021-06-03 07:44:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 00cab245742fe822ca4975d82dabf593 SHA-1: d47d73828f4fc754be3a58682b34aef8e5634c6c SHA-256: 11c5b98ed4332b85deab6820e6133ce1acfb5648f648a427438ec349f62aa224
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 0.9769

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/coin-master-2021-game-hack PDF link annotation
    • https://library.stikeswnpalu.ac.id/repository/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/hack-a-game_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-hack-app-link_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/can-i-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-100-spin-link_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_004_off00005269.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5269 25628 bytes
SHA-256: a058f321eba69e6ee45bdcd1c0b37402bdc5bd6b28632e50df6653ca7f597d12
font_01_sfnt_off00008d41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D41 2884 bytes
SHA-256: 678d7d160b7643e846db78f399167b18b196c803f3d8f1e68c2e0b9c867f94e3
font_02_sfnt_off00009720.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9720 17948 bytes
SHA-256: 6698963cbb1d852d96c53ab93a77ac893ef1ba4f062b6059a57d43c99368daf9

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