Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6f6a6ca4f69bd4d…

MALICIOUS

PDF

34.1 KB Created: 2021-06-19 02:57:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6310892faa61fde5882a7c74665de708 SHA-1: 20584c5ba1780ed9d1b8db2b558ca112280879ce SHA-256: a6f6a6ca4f69bd4d6e1295658e416ec54efdce0c9e2128da230b8347e299abb9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to malicious infrastructure, specifically targeting users interested in game cheats and hacks. The heuristic firings confirm the presence of malicious redirector links and a lure for game-related exploits. Although no scripts were extracted, the document's primary function appears to be directing users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/431946152/roblox-cheat-engine-commands-game-hack In PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-apk-no-fb-login_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-accpunt-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/kaio-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-800-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-draw-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-app-android_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/real-robux_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
font_00_sfnt_off00002d8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D8A 22396 bytes
SHA-256: 83ce05226fc1a9dc6f45fb7e779a4e2ff0fa41cd96009c47731d078a5e9ae4a9
font_01_sfnt_off00005f5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5F 19312 bytes
SHA-256: 8713256e6531e12382ed8072ab83bbc081be327514dad608e224f5c0c1e4f4f2

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