Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3dcb2c22bbf87f9…

MALICIOUS

PDF

48.4 KB Created: 2021-06-09 04:37:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ee7f30b7b4fa5bf1cecd5a20e8ccd38a SHA-1: 28b90c8dd6fae9c16376a6a336c77cfd8a238946 SHA-256: e3dcb2c22bbf87f96d6bd86a0d8c6c50d9ab657541289f602fb77f6f5c3ce1ef
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file contains a lure impersonating Netflix, directing users to a link that promises free items, which is a common tactic for credential phishing or malware distribution. The embedded URL is associated with known malicious redirector infrastructure. No scripts were extracted, but the PDF structure and heuristics indicate a malicious intent to exploit user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.tw/app/431946152/how-to-get-the-stylish-animations-in-roblox-for-free-game-hack.
  • 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/how-to-get-the-stylish-animations-in-roblox-for-free-game-hack In PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/tiktok-free-upload_GM835599320.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/collect-robux_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-game-download-free_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-coins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-free-roblox-games_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005105.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5105 26788 bytes
SHA-256: 57cc627faab851bc9821c3983fee4ae8e369e9c803bfddf2dc7bb8523e1d4e46
font_01_sfnt_off00008d8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D8D 2956 bytes
SHA-256: ad6ec724399dc4a6dba219cc9bd7a3a4d81cf3984ed28a2ea95f6203da0bdd8d
font_02_sfnt_off000097cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97CC 19172 bytes
SHA-256: a62c8c78d6935a8ccf34ef946e74c750801c28be883cd51e5c16ba8781d40aa8

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