Malicious PDF — malware analysis report

Static analysis result for SHA-256 364b076037da8fad…

MALICIOUS

PDF

32.1 KB Created: 2021-07-06 01:50:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: bc3aaf9d316fb521c4d55c20c2a739fc SHA-1: 76aaab320cf9a83e3cf21670bf17784c193cf17f SHA-256: 364b076037da8fad928d3470ab482116ab180a2a2f9a0b3f91890a58c24e0e13
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple links to known malicious redirectors, specifically promoting "Coin Master Hacker Club" and similar game-related cheats. The document body and heuristics indicate a lure to a malicious website designed to trick users into downloading potentially unwanted or malicious software. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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 http://netcdn.tw/app/406889139/coin-master-hacker-club-game-hack In PDF document text
    • http://library.stieyapan.ac.id//repository/minecraft-games-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-free-vip-server-ro-ghoul_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-premium-hack_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/como-hackear-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-games-with-free-vip-servers_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-lumber-tycoon-2-free-ticket_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/tiktok-free-view-59_GM835599320.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-hack-game_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_001_off00002922.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2922 22248 bytes
SHA-256: dc7c931d07bdfed69fe64160e7a8b00f759115ef6b0cfc7965489591f437ad0e
font_01_sfnt_off00005a93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A93 18376 bytes
SHA-256: dd43411f80a60a82ab72e2bc8e086b2bb22e047feb8d2d035d108791568e8130

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