Malicious PDF — malware analysis report

Static analysis result for SHA-256 b14988b771491c92…

MALICIOUS

PDF

35.5 KB Created: 2021-07-03 10:07:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e6058b5caef1661ae5b3d299ac6a40f8 SHA-1: 8dead58be3e1a5c800f8bab2e61fe0d0107ad2a4 SHA-256: b14988b771491c928b39b1bbbd9e9abe32abe6298b8ff96142a4218a0c5c1947
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a redirector URL, which is identified as malicious infrastructure. The document body and heuristics suggest a lure for game-related cheats or currency, likely intended to lead users to a malicious site. No scripts were extracted, but the embedded URLs and redirector behavior are strong indicators of a phishing or scam 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.co/app/406889139/free-spins-coin-master-links-2021-game-hack In PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/www-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/how-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-stuff-game-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/hacks-minecraft_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/admin-hack-download-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/roblox-noclip-hack-jailbreak_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/free-robux-generator-tool-download-link_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1lampungbarat.sch.id/__statics/gudangsoal/files/roblox-get-any-jailbreak-car-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000340e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x340E 22688 bytes
SHA-256: 3d488050447370f535c5440105965a1294ade1a5039f15eb5114333fe04859b1
font_01_sfnt_off000066d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D3 18748 bytes
SHA-256: 755f5d066d97737e2f601bc54173dd423b74488131d7b3ccc923b215b5cc75d4

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