Malicious PDF — malware analysis report

Static analysis result for SHA-256 59a10fc767f30441…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 17:25:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 16877991fc3160cec4d895831ba6b4cf SHA-1: be36e1ff57d901c40078356c05706190817d4047 SHA-256: 59a10fc767f304412517afb0d43946a4717fbf456ad53cf866aa31f1b2d77277
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-free-coins-link-game-hack PDF link annotation
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/roblox-app-free-download-for-android_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/websites-for-robux_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-roblox-gift-card-codes-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/how-to-get-a-free-dominus-on-roblox_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/roblox-hack-unlimited-money_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/popular-roblox-games-for-free_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-promo-codes-roblox-november-2021_GM431946152.pdfIn PDF document text
    • https://pasangindihomemagelang.com/ckfinder/userfiles/files/free-robux-hack-us_GM431946152.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
font_00_sfnt_off000031ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31ED 22964 bytes
SHA-256: 63266e3d057794553c80e1415a561f0f4941b3baf264b9dd1f807e478a23ef7e
font_01_sfnt_off0000653d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x653D 18168 bytes
SHA-256: 7e3864b359ae4e20f98f554aea3d5366a72fce57ca0fb6405be6acd76bdcbaac

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