Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f1b31e7c52f3e72…

MALICIOUS

PDF

35.8 KB Created: 2021-07-03 16:44:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: de01d216139443bc8a56012167ac546a SHA-1: 4eed6280633038339e658e49306c6204ff583de6 SHA-256: 2f1b31e7c52f3e72f6fb695a0fb34fb4630ec960988c0480e12f5dc467156cab
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/coin-master-blogspot-links-game-hack PDF link annotation
    • http://tasleemdubai.com/userfiles/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/2021-no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-hack-roblox-apocalypse-rising-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-hack-2021-generator_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/robux-hacktxt_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-roblox-promo-codes-december-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-games-for-free-on-google_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spins-android_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-com-free-play_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-do-you-hack-for-2021000-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-legends-of-speed-hack-pain-exist-descargar_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spin-and-trading-group_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-34-5-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_off00003416.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3416 23292 bytes
SHA-256: 882e2a4b063bf94bedb02768d1b321e142ebf1c09efa073ff0896693896e859d
font_01_sfnt_off0000688b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x688B 18472 bytes
SHA-256: c615bd6496d0d9fb6cf20dea558ce4077100b4d17ed7e8289feb1170a68b622a

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