Malicious PDF — malware analysis report

Static analysis result for SHA-256 e91db49c6d317059…

MALICIOUS

PDF

40.2 KB Created: 2021-06-03 12:48:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e2ef52af89c36b65e7e8f83f23a581d7 SHA-1: 45cc3107c3b5ccbb509d4e670ed60cd0b2216fed SHA-256: e91db49c6d3170594f342c935482ebb729a571d40aa09313e75de2249bdc22f6
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • 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.
  • 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 https://netcdn.online/app/431946152/robux-cheat-game-hack PDF link annotation
    • http://lib.untad.ac.id/repository/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-monster_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/chisel-and-bits-mod-pe_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/download-coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-free-spins-link-no-verification_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-hack-pubg-mobile-unlimited-uc-without-human-verification_GM1330123889.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/pokemon-go-free-98-iv_GM1094591345.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/robux-converter_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/is-minecraft-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free-link-app_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/pubg-uc-unipin_GM1330123889.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E9F 29500 bytes
SHA-256: 81dd082a68cbe86e410c6123cbc487244ebbb5149e868fdd9d66f5fcf5145437

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