Malicious PDF — malware analysis report

Static analysis result for SHA-256 e19c820069897891…

MALICIOUS

PDF

48.1 KB Created: 2021-06-11 08:24:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 6714aa8b3e6a3feeedad406e23febf79 SHA-1: acfe7c237a8ba1be90fc849681321fdf9af0cd6d SHA-256: e19c8200698978916170bcaf136b9649be8e3c6f5c58be3f87a74c7f5b6ba191
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, masquerading as game hacks and generators. The primary lure directs users to 'https://netcdn.tw/app/431946152/elemental-cheats-war-magic-roblox-game-hack', which is flagged as malicious infrastructure. While no scripts were extracted, the document's structure and embedded URLs strongly suggest a phishing or scam attempt designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/elemental-cheats-war-magic-roblox-game-hack In PDF document text
    • http://baxtton.com/sites/default/files/files/master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/minecraft-116-1-download_GM479516143.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/free-minecraft-hosting_GM479516143.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/free-robux-master_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/how-to-get-free-robux-and-it-actually-works_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/free-coin-master-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/coin-master-levels_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/roblox-studio-free-download_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/roblox-com-r_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/roblox-free-executor_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/coin-master-free-spins-today-daily-links_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000530a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x530A 24724 bytes
SHA-256: 549236f18880de7159b5c23b02189a9efa46197f46101fb9463a769673a6d033
font_01_sfnt_off00008c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C3C 2880 bytes
SHA-256: 106de1d187d148d03f5c34a802444a7e62d93662ddf359d17cd55770c6c16081
font_02_sfnt_off0000962d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x962D 19344 bytes
SHA-256: 1acf68b7cae12fe6b975c2e7b44e74dbaf0992dcd2a45da7357fb84a54f0c338

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