Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fbe19a9da0ecbb6…

MALICIOUS

PDF

47.2 KB Created: 2021-05-19 17:55:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c343e050fff3688c26c9409a48d8711a SHA-1: ced7d5436d385b05707814f6ddeb3fe772907260 SHA-256: 4fbe19a9da0ecbb6363d1ea0499ed56cb925b544c134d970bf4e3d73cf10d8ca
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to malicious redirectors and potentially malicious content, disguised as generators for game currency or hacks. The document body and embedded links suggest a lure to trick users into visiting these sites, likely leading to further malware downloads or phishing attempts. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/how-often-pubg-uc-turn-into-cancer-game-hack In PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/coin-master-free-daily-rewards_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/coin-master-500-free-spins_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/coin-master-free-spins-link-no-verification-code_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/download-coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/coin-master-fan_GM406889139.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://petrorang.com/admin-panel/products/images/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004941.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4941 28780 bytes
SHA-256: 9bf2c06eb3093221f4a9e21115e1e94a72af74cdf0ad28658dc333729d6ed888
font_01_sfnt_off00008ba2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BA2 2816 bytes
SHA-256: 214f0b8c2b3c279476f862ae08d7e072944da5f6084cbd6130f0ffdc3460b614
font_02_sfnt_off0000954d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x954D 18536 bytes
SHA-256: 790b9c1b994ae75776ebc7aced5f398cea12cdcfdb77a9069d2a012f8a3698a3

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