Malicious PDF — malware analysis report

Static analysis result for SHA-256 b359223e5062c413…

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 14:50:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 8d9bafa0cbff5c9da4b3d84480c7239f SHA-1: 12b3c353551df93f024fc6edf3f142125b4b6a52 SHA-256: b359223e5062c413598c7746c0a32f87b04d73bfa41026c710f69b235a3e5e70
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

This PDF document was flagged as malicious by an ML classifier. It uses a ClickFix paste-and-run lure. 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 0.9865

Heuristics 5

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/479516143/free-minecraft-games-for-kids-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id//repository/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/master-game_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-roblox-injector_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/minecraft-cracked-client_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/robux-redeem_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-game-hack-apk_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-free-pet-food_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-free-spin-facebook-link_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hack-para-simon-says-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-coin-master-links_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005221.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5221 25076 bytes
SHA-256: 1de5e58d6945b5b7c5c475c019329f7ab9995f014ba007583d629f66d99090c0
font_01_sfnt_off00008ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE3 18144 bytes
SHA-256: 13e7e5cd67c7f2718453187682e852ca38f83a1f5fffd311a8da849f95858a3e

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