Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca12d56c39e466f7…

MALICIOUS

PDF

34.5 KB Created: 2021-06-29 06:04:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 73f6dd7b0b0519a3cca9d6e5121747cb SHA-1: 12d0bf8c0f6c82904e8f642bcfcf1d513381b90c SHA-256: ca12d56c39e466f78ea8cfacbd4ec574e2b333da4e5513968f84deb58fff693a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, specifically http://netcdn.co/app/431946152/free-animation-roblox-june-game-hack. The document body and extracted URLs suggest a lure for game hacks and cheats, indicating a phishing or scam attempt. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence score support the malicious verdict.

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.co/app/431946152/free-animation-roblox-june-game-hack In PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/cheat-codes-for-roblox-android_GM431946152.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/free-glack-wings-roblox-promo-code_GM431946152.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/weight-lifting-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/coin-master-free-coins-today_GM406889139.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/roblox-ultimate-driving-westover-islands-hack_GM431946152.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/free-spins_GM406889139.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/how-to-hack-roblox-im-poison_GM431946152.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/roblox-jailbreak-hack-script-download_GM431946152.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/minecraft-free-download-android-apk_GM479516143.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/coin-master-free-spins-8-14-2021_GM406889139.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/how-o-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/www-coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://www.lifegoeson.in/uploaded_files/userfiles/files/free-robux-generator-com-roblox-hack_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_off00002f41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F41 22308 bytes
SHA-256: 45aa37d8bda6019dd50ba39b9a3de0319db5920bac9d492358ec873145613b24
font_01_sfnt_off0000609c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x609C 19440 bytes
SHA-256: 1d8039cb11259fbaacb8b17e09c4e9bf43c68caba2e9093abd6a61982ae467e6