Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5f2cbfb06f6a1e6…

MALICIOUS

PDF

46.9 KB Created: 2021-06-03 08:37:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: de252aeab7cf4ef09a2271ebb5d0a1a0 SHA-1: d90707a0bc80f579539be82d079c8e5f112ed3d4 SHA-256: f5f2cbfb06f6a1e6b0bd0880412801a0666690383f1183ba6965396cb27cfb6c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks, specifically for Coin Master and Robux, directing users to a malicious URL. The ML classifier strongly indicated maliciousness, and the embedded URL is a high-risk indicator. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or redirection attempt to a site likely hosting further malicious content or exploits.

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-links-to-get-free-spins-game-hack PDF link annotation
    • http://library.itekes-bali.ac.id/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/can-you-give-me-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-daily-bonus-hack_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-gift-card-free-codes_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-coin-master-coins-2021_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-master_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/master-coin-hack-mod_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-do-i-hack-a-roblox-account_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spin-link-app_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_off00005116.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5116 25456 bytes
SHA-256: 90c3e40a99108fbaae95c5cf3593c8f7b069e08ce3d64d3c702bd93b856e8d92
font_01_sfnt_off00008a5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A5E 18056 bytes
SHA-256: d6f48365c8184d813f3f97722928ecdf71d9bd5c6eacb29ace11fc0c34dd539a
font_02_sfnt_off0000abab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABAB 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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