Malicious PDF — malware analysis report

Static analysis result for SHA-256 00e54c5f87e6c107…

MALICIOUS

PDF

32.0 KB Created: 2021-07-19 04:32:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: a323b403d4f768fd4d71c87b0433f1c8 SHA-1: c12efc2f52cf9397da0140a26d614c8e6034a43f SHA-256: 00e54c5f87e6c1075f21787453ea01371758413790c75523f7061dd0012f23be
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector domains that promise free game hacks and in-game items, a common lure for phishing or malware distribution. The heuristic firings confirm these links point to known malicious redirector infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site, likely for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/479516143/how-to-get-minecraft-for-free-on-android-game-hack In PDF document text
    • http://huebner-baustoffe.de/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://huebner-baustoffe.de/images/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://huebner-baustoffe.de/images/free-views-tiktok_GM835599320.pdfIn PDF document text
    • http://huebner-baustoffe.de/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://huebner-baustoffe.de/images/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://huebner-baustoffe.de/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://huebner-baustoffe.de/images/tiktok-free-views_GM835599320.pdfIn PDF document text
    • http://huebner-baustoffe.de/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://huebner-baustoffe.de/images/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://huebner-baustoffe.de/images/roblox-hack-game_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_off00002b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B2A 22100 bytes
SHA-256: 48536a943b659df69425b27c0ff1a56b2e87600ba4954b9f172bb4cdd932f514
font_01_sfnt_off00005bcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BCF 18048 bytes
SHA-256: 8059851acc98585c267d1a0730441da2490f7a27bb6efaac05b05bf58a4bb166

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