Malicious PDF — malware analysis report

Static analysis result for SHA-256 620eeb6a6d85470c…

MALICIOUS

PDF

34.9 KB Created: 2021-07-09 08:46:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 59029e90b9bc900fc256fb936f770161 SHA-1: 71ce6572a591aed80175ad42bfe6262de93e079c SHA-256: 620eeb6a6d85470c830b2df9b5c6ca59116fcf5c1e853afc74075d89d95b90c5
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/431946152/roblox-phantom-forces-hack-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/coin-master-computer-hack_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-mad-city-roblox-easy_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-of-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-royalty-free-music_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-admin-panel_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-website-ligit_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/wix-site-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/vermillion-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roboxy-com-for-robux-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-cheats-club_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-create-a-minecraft-server-for-free_GM479516143.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_off0000302f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x302F 22448 bytes
SHA-256: 3493ca359ba71f9f3dd5f1a37e303b6550544d67e9e6c25c67c56309f718c403
font_01_sfnt_off0000623a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623A 19504 bytes
SHA-256: 3aab1e5f5324586642ccc53f6d59b2a14e7a921b9776a263d03688244dfb997f

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