Malicious PDF — malware analysis report

Static analysis result for SHA-256 66cc9a069690b7b1…

MALICIOUS

PDF

42.2 KB Created: 2021-05-15 03:31:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9cbdc2b621c676fe1781d350d8331e7a SHA-1: de7bf9ed6d86c807e1d102b9493501d4c3ea42ea SHA-256: 66cc9a069690b7b1a36bb7671b9ce6108982512a79311e4c539db4284080e3fa
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a game hack lure to entice users to click on a malicious redirector URL. The ML classifier strongly indicated maliciousness, and the presence of multiple embedded URLs associated with similar lures reinforces this assessment. While no scripts were directly extracted, the PDF structure itself likely contains embedded JavaScript or other mechanisms to facilitate the redirection, aligning with T1059.007.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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
  • 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/479516143/minecraft-toys-for-free-game-hack In PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/cute-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hack-tool-v1-9-download_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/can-you-earn-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hack-pro-gamers-com_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-spin-coin-master-today_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-minecraft-texture-packs-java_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-free-play-no-download_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_003_off000048a6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48A6 26100 bytes
SHA-256: 54f45cd677e951745dbbdc3a0dc4400d2ade7a39a8bae8c3c302d773ae44ee71
font_01_sfnt_off00008400.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8400 17888 bytes
SHA-256: 58cd9c25f2055972b1f3d8fd7725b840dc665585bc5f994aadd02011a7a39e9c

Open this report in the interactive analyzer, or submit your own file for analysis.