Malicious PDF — malware analysis report

Static analysis result for SHA-256 8720e2decd3ace46…

MALICIOUS

PDF

42.1 KB Created: 2021-05-11 01:10:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: fd211729c5b715175422307213cdf89a SHA-1: 5bebacdfe416f2b0db4f50a25e193ddea8897208 SHA-256: 8720e2decd3ace463a230071e19ed03504f22f8bb7bea8039119b6b7651bac66
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, with a primary URL pointing to a 'free coins and spins coin master game hack'. This lure, combined with the ML classifier's high confidence, indicates a phishing or scam attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/free-coins-and-spins-coin-master-2021-game-hack PDF link annotation
    • http://perpus.masda.ac.id//repository/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/real-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/worst-client_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/games-like-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/robux-hack-tools_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
stream_003_off000049a5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49A5 24580 bytes
SHA-256: 31cfe4325823445140763caf21d6c5546bb76cf30f537a6e58621590b7730a84
font_01_sfnt_off000081ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81AC 18460 bytes
SHA-256: 871f0cb0a27f8e5dd89901f10b004c29658dd5d4ba968b8e0fec3a5b4bbe6c5a

Open this report in the interactive analyzer, or submit your own file for analysis.