Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dd4fcfde571d3c1…

MALICIOUS

PDF

34.6 KB Created: 2021-06-18 07:32:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: ef19d2b45245781680c37e778f14940a SHA-1: 9667c85464ef71af62cb8a3f517d68c17539879b SHA-256: 5dd4fcfde571d3c1e9b49ccd22ea3be0638da62d3f6b31c3124009c3a14912e4
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to redirector infrastructure, specifically advertising "game hacks" for popular titles like Roblox and Minecraft. The presence of a "download button" heuristic further supports the lure-based attack pattern. The document's primary purpose appears to be directing users to malicious sites that likely host malware or facilitate further compromise.

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/redline-hack-download-roblox-game-hack In PDF document text
    • http://slim.sisminkada.net/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/unlimited-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-pet-food-free_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/make-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-online-hack-tool_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/island-royale-roblox-hack-esp-script_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/www-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-without-downloading-apps_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_off00002f70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F70 22496 bytes
SHA-256: 5f34e7743b6e434b4db5e440fa7dfc1544a35a5d601eb52ed2c3854180a652d2
font_01_sfnt_off0000617a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617A 19284 bytes
SHA-256: 69f43855607350175c29782f387640b08d7f9c339345cb31b4531d3bc53374ce

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