Malicious PDF — malware analysis report

Static analysis result for SHA-256 208577b3115442d4…

MALICIOUS

PDF

33.9 KB Created: 2021-07-09 20:01:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 16481ad7a7636c9f0060f00a059b00f9 SHA-1: 2b40cad34ca6311686e295c4e0defb1569b890fa SHA-256: 208577b3115442d4325a275420309b37d7e55317f4bc4fc3b5b8f540e3766ee4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a known malicious redirector infrastructure, specifically advertising 'free generator / game hack' lures for popular games. The document body and extracted URLs strongly suggest a phishing or scam attempt designed to trick users into visiting malicious sites. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures indicate a high likelihood of further malicious activity upon user interaction.

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 http://netcdn.tw/app/406889139/coin-master-free-spin-ml-game-hack In PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/roblox-free-pacages_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/pubg-770-uc-ne-kadar_GM1330123889.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/egg-farm-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/scary-larry-roblox_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-cop-gamepass-roblox-ultimate-driving-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-unlimited-spin-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/promo-codes-for-free-stuff-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-no-human-verification-no-survey-ios_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/e-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/ways-to-get-free-robux_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_off00002f48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F48 22684 bytes
SHA-256: c47931b17a3610d81e2b4addf68c609bebbe66e8bd9246855d6c75a0d375b282
font_01_sfnt_off000061d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D0 18248 bytes
SHA-256: c18038b999a15e068e0fcec6b3cb299d21e05aa15a09c32d3b19c8c95a871ee0

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