Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee48e4460bf16319…

MALICIOUS

PDF

34.9 KB Created: 2021-07-07 17:45:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: cb46a48287f0bbb7a98e7b290fdfc31d SHA-1: ab1abd937c1089b2b1725b193d336fe422689266 SHA-256: ee48e4460bf163190180a08fbc400b9c38073e2058a1ec7a61f94294716ee08c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure, advertising free game currency and hacks to entice users to click on embedded links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or malware distribution attempt.

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.tw/app/406889139/clean-master-free-coins-and-spins-game-hack In PDF document text
    • https://anshingtek.com.tw/image/data/files/roblox-admin-free_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/roblox-game-free-download_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/get-free-roblox_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/hacking-in-roblox-colour-cubes_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/minecraft-free-online_GM479516143.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/obbys-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-robux-100k_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/avatar-the-last-air-bender-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-hacking-news_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/rbx-earn_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/10-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-minecraft-texture-packs-java_GM479516143.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/how-to-get-free-coins-in-coin-master-game_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/como-instalar-hacks-en-roblox-2021_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_off00003262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3262 22764 bytes
SHA-256: b7143d06274fea314ecba4efa5c126be4eb5cf1782a7494266a4163a8fa0ea68
font_01_sfnt_off0000655c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x655C 18424 bytes
SHA-256: 422edec60c9a60eea153bffbb034d541e181a6e8f3b8dab89cf23806ccd959ba

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