Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5f62900c219bc19…

MALICIOUS

PDF

48.4 KB Created: 2021-06-03 12:39:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 26573384ccc999d1ae13e3812ed5d301 SHA-1: 15f1b6e332684d58ca60c1109df9309c8ad1db39 SHA-256: b5f62900c219bc198906ad78e0b5785bef2c2807cf3e834acc6a2b7a5352e93a
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 0.9796

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/free-online-spins-coin-master-game-hack PDF link annotation
    • http://digilib.akbidarrahma.ac.id/repository/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-60-spins_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/rbx-com_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-free-spin-generator-without-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005229.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5229 26736 bytes
SHA-256: 28c63ff2577ad16b60d2bcb632cd7c6529df7d9f3e0706832ac203b2d499f35e
font_01_sfnt_off00009078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9078 3400 bytes
SHA-256: 75c3a8e6f5c68e0746f893c922e57fd7e888a21fb038f9ae3eedb0a197a59e24
font_02_sfnt_off00009b9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B9C 17960 bytes
SHA-256: f6240ebc11618f9bd58bbcb42a9f6a607c152d748d208013faf540cef68a2ab0

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