Malicious PDF — malware analysis report

Static analysis result for SHA-256 e39150d2bc0ba33b…

MALICIOUS

PDF

35.2 KB Created: 2021-06-26 19:21:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 27d2f31b8cb8fd5658f0945835c2a91d SHA-1: 52505280706ab47259f1eee373b1aabba4d0cb2d SHA-256: e39150d2bc0ba33b5b796df26b6ac407ea5d3842a3f429255ca2c8a1de3562b3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector at http://netcdn.co/app/431946152/roblox-weapons-for-free-game-hack. The document body and heuristic firings indicate a lure for game hacks and generators, suggesting the intent is to redirect users to potentially malicious content or download further payloads. No scripts were extracted from this sample.

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/roblox-weapons-for-free-game-hack In PDF document text
    • https://www.ocic.hr/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://www.ocic.hr/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://www.ocic.hr/files/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • https://www.ocic.hr/files/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://www.ocic.hr/files/free-robux-nunchucks-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ocic.hr/files/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://www.ocic.hr/files/roblox-www-com_GM431946152.pdfIn PDF document text
    • https://www.ocic.hr/files/how-to-earn-free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.ocic.hr/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.ocic.hr/files/tiktok-free-view-easy-verification_GM835599320.pdfIn PDF document text
    • http://www.ocic.hr/files/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • https://www.ocic.hr/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.ocic.hr/files/free-roblox-generator_GM431946152.pdfIn PDF document text
    • https://www.ocic.hr/files/roblox-hacking-apps-download-pc_GM431946152.pdfIn PDF document text
    • http://www.ocic.hr/files/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.ocic.hr/files/how-to-hack-into-roblox-that-work_GM431946152.pdfIn PDF document text
    • http://www.ocic.hr/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.ocic.hr/files/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • https://www.ocic.hr/files/como-tener-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.ocic.hr/files/free-robux-earn_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_off0000332a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x332A 22176 bytes
SHA-256: 89424148f69f95c17dd4f5b39dbd712e93df91c6a8ae530736f54ec3f04540fc
font_01_sfnt_off00006487.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6487 19024 bytes
SHA-256: 3c3426c9ccc486bcb4e98df4cce685e41141aac79970d6088e5a7d14b6b8ab8d

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