Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cb72a534952e936…

MALICIOUS

PDF

30.0 KB Created: 2021-07-03 18:03:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6ab2241e74fe9137d2bc61930db6b87e SHA-1: 7bf67d85b6fc9643482800ffd697c704aa9d6438 SHA-256: 8cb72a534952e93658591256b32dff6651c5577a618659df51c67d2ae6445e62
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file contains numerous links designed to lure users into clicking on game hack generators and free currency schemes. The primary link directs to a 'jailbreak-roblox-hack-game-hack' page, indicating a scam or phishing attempt. The extensive list of embedded URLs suggests a link farm designed to drive traffic to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF links to a 'free generator / game hack' redirector high 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/431946152/jailbreak-roblox-hack-game-hack PDF link annotation
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/free-robux-website_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/more-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/robux-for-free-meme_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/free-roblox-cookie-logger_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-computer-fast-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/how-to-get-more-diamonds-on-roblox-royale-high-cheats_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2bolmong.sch.id/__statics/gudangsoal/files/robux-match_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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC0 22844 bytes
SHA-256: 9d115ba16226cdd53d65b4a2cd680cc6936ee985d8a4c72a3bc3ed5abc82d8e4

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