Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0d95ce9b14e835b…

MALICIOUS

PDF

35.1 KB Created: 2021-06-27 01:35:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d59239f336a9a16463dc0525417cb184 SHA-1: 12cda65f89a5434223de1386b55154416b36bafe SHA-256: a0d95ce9b14e835b577472d7db6fd0d5ff62f121928d758fa0354015f44800ab
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/chreck-cashed-v3-roblox-hacking-game-hack PDF link annotation
    • http://perpustakaan.yudharta.ac.id/etj/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/legit-methods-of-getting-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/legit-films-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/ariana-grande-clothes-free-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/coin-master-hack-android-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/roblox-ben-ten-universal-showdown-cheat-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/working-free-robux-obbys_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-bc-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/roblox-has-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/roblox-lumber-tycoon-2-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-spin-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-code-sharbites-roblox_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_off0000324f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x324F 22064 bytes
SHA-256: d8dc30bdceae700e1db2323a9133d74f766c0d2c35923348871552bcca0ae506
font_01_sfnt_off0000631a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x631A 19424 bytes
SHA-256: bf1b9de60160bb6a553e3b43a2be2232cbf0ecd9a1c79e30cb310a86600f26e0

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