Malicious PDF — malware analysis report

Static analysis result for SHA-256 38c74e8e3557e88d…

MALICIOUS

PDF

34.1 KB Created: 2021-06-26 10:46:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 058297700719c3682d157e754e3b2efe SHA-1: 7f3e1c3fa412cff5e4a40460c83642661a22fc0a SHA-256: 38c74e8e3557e88dd94c74f0bdea55affe97b68bb9af3ad003e0c30043c98450
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links to a known malicious redirector, specifically advertising 'game hacks' and 'free currency' to lure victims. The document body and extracted URLs reinforce this lure, pointing to various game-related cheats and generators. The primary malicious action observed is the redirection to potentially harmful content via the embedded URL.

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/hack-roblox-atravesar-paredes-2021-game-hack In PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/free-tiktok-followers-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/cheap-robux-scam-free_GM431946152.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/coin-master-hacks-no-surveys_GM406889139.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/how-to-hack-roblox-assassin-2021_GM431946152.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/how-to-hack-into-getting-robux_GM431946152.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/robux-giver_GM431946152.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/free-robux-website_GM431946152.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-generator_GM406889139.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/how-to-get-free-clothes-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/fun-flex-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.sses.com.sa/uploaded_files/userfiles/files/coin-master-hack-apk_GM406889139.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_off00002fe0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE0 21296 bytes
SHA-256: 4f3ec837d6bd754e82cfa3be40dbf7d7052e13b697488a781ac9c6fbd2e80691
font_01_sfnt_off00005e41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E41 19604 bytes
SHA-256: 58bcd4b660b4348400fe29133165d19218da609fd84e5b841c2f963a5c72eefb

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