Malicious PDF — malware analysis report

Static analysis result for SHA-256 85a6a383bb12643a…

MALICIOUS

PDF

34.2 KB Created: 2021-06-19 19:54:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7c826ab2fbe747be7cc457b6cef464f9 SHA-1: b3bdba64f065dc6465e1daff218e5cce2db52e13 SHA-256: 85a6a383bb12643a35c2356b0eca1c25157d9b1435373f243d80469c4cf12ef1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are designed to lure users into clicking on them by promising free game currency or hacks. The primary URL, http://netcdn.co/app/431946152/robloxpromocode-free-robux-game-hack, is directly linked to a 'free generator / game hack' lure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a phishing or scamming attempt, likely relying on the user's interaction with these links to deliver a secondary payload or lead them to a fraudulent website.

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.co/app/431946152/robloxpromocode-free-robux-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/robux-today_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/ultimate-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/fly-hack-roblox-script_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-stuff-on-roblox-catalog-on-phone_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coun-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-app-download-free_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
font_00_sfnt_off00002e33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E33 22200 bytes
SHA-256: b86e74e527fd392f646b4c2a0b8532839f312107ceea106197e56289393586a9
font_01_sfnt_off00005fd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD2 19400 bytes
SHA-256: ddeea144ef8a74cf0e67208fa0fad58ec7414c047f61a06930e71babf898d013

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