Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b00ad181789c487…

MALICIOUS

PDF

34.7 KB Created: 2021-07-09 06:43:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3c7c34d6c91d235d59c4ccac43121120 SHA-1: d27b33ce37b8a8e6ae8169cb6801a6bc0517fdc2 SHA-256: 8b00ad181789c4876e2237865b75269f0e9c5845b5bcadb8966d48aa17fcf570
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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
  • 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/406889139/how-to-make-my-own-coin-master-cards-hack-game-hack PDF link annotation
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/robux-online_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/complete-offers-for-robux_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/roblox-install-free_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/minecraft-items_GM479516143.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/coin-master-levels_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn1jkt.net/__statics/gudangsoal/files/coin-master-club-hack_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003159.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3159 22736 bytes
SHA-256: 4a8430881d194998393ca498ca3e87d17c3dbcccc7d69d7d7c406db1d492a5b1
font_01_sfnt_off00006415.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6415 18524 bytes
SHA-256: 46ae334cf0fa796b7742c768f4b06e72011c6a04fcbfff1e670a3fbce137bf25

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