Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b1975998e3c8eea…

MALICIOUS

PDF

44.6 KB Created: 2021-05-15 07:00:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 794eb573b2315422271d6b5fadc3c727 SHA-1: f9d401261cab6a1abc7a827806a6046c039a4cee SHA-256: 0b1975998e3c8eea5779543ad5152d155633141e5a9c500f8d7fb70b33117b00
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to known malicious redirectors, specifically advertising 'free Robux' or 'game hacks'. The heuristic firings confirm these links are designed to lure users to potentially harmful content. While no scripts were extracted, the document body and embedded URLs strongly indicate a phishing or scam attempt, likely serving as a lure for further malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/431946152/free-robux-no-verification-no-download-2021-game-hack In PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-free-spins-link-today-ios_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-free-spins-instagram_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/get-more-robux_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/coin-master-free-coins-spins_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/free-spins-and-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/oprewards-login_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
font_00_sfnt_off00004d2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D2E 25920 bytes
SHA-256: 0001a08fa83b5016479082ee7a33f53708646bed5e5c502c7fb12a302a9f87ac
font_01_sfnt_off000087d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D2 19584 bytes
SHA-256: 6d060c19cfdcabcdc6bddd80792e5ccefe5b0efd90c0cd3f16f1565492dd4e8c

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