Malicious PDF — malware analysis report

Static analysis result for SHA-256 96733884e52c8366…

MALICIOUS

PDF

44.9 KB Created: 2021-06-04 00:38:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 013715a862cdba3d03ec93b7b5d862a9 SHA-1: 7d91198f653456054054e4008b439c36206dba90 SHA-256: 96733884e52c83668b7a52ecf03224c04e86f13b77156250dce6833b620ae2b0
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 0.9865

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.online/app/406889139/how-to-win-attack-madness-in-coin-master-hack-game-hack PDF link annotation
    • http://library.thamrin.ac.id/repository/eclipsis-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/minecraft-java-free-account_GM479516143.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/coin-master-hack-blog_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/how-to-download-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/free-robux-site_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/easypoints-gg-roblox_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/robux-giver_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/202100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/coin-master-mod-apk-latest-version-free-download_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/coin-master-free-items_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/roblox-generator-no-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
stream_004_off00005331.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5331 24812 bytes
SHA-256: 9e0b4c2f139590cc05662d1529bc552868150a877ece515aa01ae3cd7908e2e0
font_01_sfnt_off00008cd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD2 18252 bytes
SHA-256: ebc75091247f42f4d8f6f5328204ee4b219dff7698097371fec03a0e52319ffd

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