Malicious PDF — malware analysis report

Static analysis result for SHA-256 5afa05d49079aa23…

MALICIOUS

PDF

34.5 KB Created: 2021-06-25 20:40:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c3ea3d5161f21abae82123e7b14cb4d0 SHA-1: 6bff813a5860b146a91c4412043af4b4a78d99d4 SHA-256: 5afa05d49079aa232dade007aa88237d22f2554d7a02d42c7574cc6217267000
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators' for popular games. The primary lure URL is http://netcdn.co/app/431946152/how-to-hack-unblock-roblox-password-on-computer-game-hack, which is flagged as a malicious redirector. The document body and heuristics indicate a social engineering tactic to trick users into clicking these links, likely leading to further malware downloads or phishing attempts.

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/how-to-hack-unblock-roblox-password-on-computer-game-hack In PDF document text
    • http://bw.ac.th/userfiles/files/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/pokemon-go-free-bonus-box_GM1094591345.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/axon-anti-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/pro-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/roblox-murder-mystery-2-cheat_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/getbucks-me-roblox-free_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/win-free-robux_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/easy-hacks-of-money-for-rocitizens-roblox_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/get-robux_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/coin-master-hack-apk-facebook-login_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/coin-master-free-spins-hacktman_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off00002efd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EFD 21944 bytes
SHA-256: 5b1223b04fa1f6eb9e7d5bd599fe814cf30f029ab22f42dd3f5318ef68dec75e
font_01_sfnt_off00005f7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7F 19828 bytes
SHA-256: 24c8c538f7ca73b5290f31c96b352d238df9f76b96338cc289a656b94366c40c

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