Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e00c3ed6ecfd553…

MALICIOUS

PDF

33.7 KB Created: 2021-07-04 02:46:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3cd5474ec9890e19c0f1b82ac3ddf451 SHA-1: 115b98c24f2be74ae4926e78ec2e81d38e1651a3 SHA-256: 1e00c3ed6ecfd5531764c13b23e3cbd9ff73851c1a0ec40dd9cb0d867ecad06d
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/how-to-get-free-robux-fast-and-easy-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-somebodys-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-outfits-boys_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-roblox-accounts-2021-august_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-script-executor-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/runinate-roblox-hack_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-virusescom-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-music-id-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-hack-no-download_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/oprewards-com-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-brick-bronze-cheats_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-robux-no-human-verification-2021-pc_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-hack-scripts-for-children_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-coins-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/pokemon-go-free-zoom_GM1094591345.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-coins_GM406889139.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_off00002d52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D52 21852 bytes
SHA-256: b30f1f004aaec2981a820f45632bc56fab73e702bded76545e3646c6f6bf40a7
font_01_sfnt_off00005d90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D90 19340 bytes
SHA-256: e9e0cf1ab6f783e57183aba6e7ab34e8b0edef29a09b47d1de428d0435b690df

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