Malicious PDF — malware analysis report

Static analysis result for SHA-256 14a8c35d7e0b0c89…

MALICIOUS

PDF

43.3 KB Created: 2021-06-04 03:36:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 4a647966a9036192e0fce82faca398de SHA-1: 441a0a6a5bddaaf13541ecf2b940dbc555ebf1fd SHA-256: 14a8c35d7e0b0c897676d3379a032b0c33359a172e4caf9c1ccf41c6677ee93a
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 0.9865

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-claim-spins-game-hack PDF link annotation
    • https://library.uigm.ac.id/repository/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-sexually_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/unlimited-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-com-robux_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005041.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5041 24156 bytes
SHA-256: 6579644b0530cf22e223d6cf62ae21be0aa40d559c2e1e871b33ef1b280c2c27
font_01_sfnt_off00008775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8775 18056 bytes
SHA-256: 910bba4e9b8698471f084902004854848b7ccdb185fd175879c14395f4b2f674

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