Malicious PDF — malware analysis report

Static analysis result for SHA-256 27b166d27c761ee0…

MALICIOUS

PDF

42.2 KB Created: 2021-05-17 01:30:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d8621b03f90668f4dbfbf26410243b58 SHA-1: 166d3ebcaeebf569144675f3bf9da8be5a725666 SHA-256: 27b166d27c761ee0b089374243a4c3def4f14cc9b10bdef3b3566d002e19a346
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a free game hack or generator. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to potentially malicious content or further phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • 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.
  • 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/406889139/best-free-spin-app-for-coin-master-game-hack In PDF document text
    • https://and.co.id/assets/CKImages/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/mcpe-hacks_GM479516143.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/robux-come_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/how-do-you-get-robux_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/free-game-pack-with-google-play-coin-master_GM406889139.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/how-to-hack-coin-master-apple_GM406889139.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/collect-robux_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/free-roblox-executor_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/50-free-spins-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_003_off00004a20.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A20 24844 bytes
SHA-256: 8cd2f2fb0b2f4b5726eed5031854f1f4c47ae282ddcafe144571add6b86c7bc9
font_01_sfnt_off00008349.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8349 18104 bytes
SHA-256: 696eb84ca3d86a9d6d5f53637eee870c8736518ac79d3d0dcda7670393ffe90a

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