Malicious PDF — malware analysis report

Static analysis result for SHA-256 282d140c64ab7d5b…

MALICIOUS

PDF

40.6 KB Created: 2021-05-19 18:31:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dcd18db825125a95c5623bba24a20a52 SHA-1: 5700ab9b7d406fe20664c80c772dcae2baec8cbe SHA-256: 282d140c64ab7d5b7ae149cc21289cb57e37ab64a79d010b62cb01513d71953b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising "game hacks" and "free generators" for popular games. The primary lure URL is https://netcdn.xyz/app/1330123889/pubg-uc-2021-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious redirection, likely intended to lead users to phishing sites or malware downloads.

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/1330123889/pubg-uc-2021-game-hack In PDF document text
    • http://zarinnameh.ir/images/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-free-spins-app-android_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/is-roblox-free-on-pc_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/100-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://zarinnameh.ir/images/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004437.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4437 24752 bytes
SHA-256: b63cd2ea954ae1edaaf8b3e944f88d8b33b7d23caa6cbfd1b6f95fc8c6ee606a
font_01_sfnt_off00007c41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C41 18300 bytes
SHA-256: 792744c9184ca8e67024c25d81bb790eba3106c699a66d4813878fab3c321418

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