Malicious PDF — malware analysis report

Static analysis result for SHA-256 7900290732fd1e4e…

MALICIOUS

PDF

43.2 KB Created: 2021-06-03 07:04:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1a1f4f950ea84ab0e458fa899bedec5a SHA-1: 0211f0dc7dc4bb1f79e157db782eda688440d518 SHA-256: 7900290732fd1e4e9c8ed9715f10c15eb8687024b7f0037ce93f7137ee28d602
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and free in-game currency generators. The primary lure URL is https://netcdn.online/app/406889139/how-to-hack-coin-master-facebook-game-hack, which is flagged as a malicious redirector. The document body and embedded URLs reinforce this lure, aiming to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/how-to-hack-coin-master-facebook-game-hack In PDF document text
    • https://ibelive.tw/image/data/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-roblox-characters_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/hack-para-booga-booga-roblox-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-free-coins-link-facebook_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/minecraft-free-android_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/get-free-robux-no-human-verification_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_004_off00004fa0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FA0 24336 bytes
SHA-256: 81e935c71d1f99499d84eddb544e488e6da956a02b7f505e10220396129a3387
font_01_sfnt_off000086a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86A1 18200 bytes
SHA-256: 8e8ec0f975961d2350ea51926afe2b17ad27ef08b7a7cfd0d75dd5f13f2b8752

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