Malicious PDF — malware analysis report

Static analysis result for SHA-256 be0a88e436f955b5…

MALICIOUS

PDF

34.4 KB Created: 2021-06-25 07:15:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: f902e6b0088241ed49fb375dfcb5f491 SHA-1: 3996629477cbd0cf02766bc8f922746cf1183246 SHA-256: be0a88e436f955b5a3bcb23a0873f3a18adffac7f16ef621002570577e53ac5c
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.co/app/431946152/roblox-free-robux-give-away-lve-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-games-for-free-unblocked_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/robux-in_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-give-other-people-free-roblox-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-wall-hack-in-roblox-after-patch_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-gear_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-robux-generator-2021-without-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-simply-go-to-roblox-sc-redeem_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/pubg-uc-voucher_GM1330123889.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-codes-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/artmoney-roblox-speed-hack_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_off00002e02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E02 22520 bytes
SHA-256: 984d5d13c1c77864439d6f3f1644e72085b79eb03020fb621b57a6371f4145e8
font_01_sfnt_off00006070.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6070 19368 bytes
SHA-256: dfb37ecad1340c47ba276d37421d94f69cb60ac671febe19954a605488ded853

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