Malicious PDF — malware analysis report

Static analysis result for SHA-256 08a012279de05d51…

MALICIOUS

PDF

35.0 KB Created: 2021-06-18 07:42:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 7da35b0085e849a1ef67c09f3b51c7a4 SHA-1: 377761fd87afcd8637b6b5b569ba21d99ee6beb4 SHA-256: 08a012279de05d51add6f2b74df26c7a9d64d164956cde0fdaf8d5d41bd4e701
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-injector-free-game-hack PDF link annotation
    • http://perpus.i2s-learning.com//repository/coin-master-free-spin-facebook-link_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/minecraft-free-education_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/minecraft-bedrock-hacks-windows-10_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/probability-that-the-new-roblox-item-will-be-free_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-get-free-robux-no-human-verification_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_off0000319c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x319C 22624 bytes
SHA-256: 9c586f2d7ca563997759cf075c7870b3728511577e382ad77d4c215f3767621c
font_01_sfnt_off000063f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F5 18944 bytes
SHA-256: ef737058f33afcac2bcc00af7f01a65dfdede675e30c1e4e9af833d45f223c59

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