Malicious PDF — malware analysis report

Static analysis result for SHA-256 452a2449dddf156f…

MALICIOUS

PDF

35.1 KB Created: 2021-06-27 18:33:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 6fcd50824791a839544b710e0789a357 SHA-1: ef30e75932c208e2294db63c7f563a2dc2189588 SHA-256: 452a2449dddf156f76d7892f3b6a57221681b790379112e3431dd46318f968f2
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses a fake browser/software-install lure. 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 5

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/how-to-hack-roblox-copy-any-roblox-game-game-hack PDF link annotation
    • http://elearningman2jember.com/__statics/gudangsoal/files/roblox-adopt-me-free-vbucks_GM431946152.pdfIn PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/new-speed-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/20210-robux_GM431946152.pdfIn PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/where-tiktok-free-views-and-likes_GM835599320.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/coin-master-free-cards-hack_GM406889139.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/pubg-uc-and-bp-hack_GM1330123889.pdfIn PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/is-there-any-tricks-or-working-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/download-free-robux-hack-on-pc-for-free_GM431946152.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/daily-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/gift-card-roblox-free_GM431946152.pdfIn PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/how-to-get-free-outrageous-and-robux-earrapr_GM431946152.pdfIn PDF document text
    • https://elearningman2jember.com/__statics/gudangsoal/files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningman2jember.com/__statics/gudangsoal/files/roblox-hack-menu-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3278 21968 bytes
SHA-256: 45c0098c8aa70b85d7800c29134553a76bd411d5baee239b3b5bb50ce2405eb8
font_01_sfnt_off000062f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F8 19436 bytes
SHA-256: 4766587b774ca98808922cce6b5650e6f58524cb5b07d1252cdf3317d0d719ad

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