Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfd0b56913550de2…

MALICIOUS

PDF

34.4 KB Created: 2021-07-05 17:24:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2b463aade15ea2941424259e32dd6a9b SHA-1: b4893669f846c7f99f04cc53bc5fcd7e08d6a56e SHA-256: bfd0b56913550de200cd726fa926f15c7d92921c6bcb70b73aeeff9931f2daf4
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.tw/app/479516143/free-minecraft-accounts-reddit-game-hack. These links are presented as lures for 'free generators' or 'game hacks', suggesting a social engineering tactic to trick users into downloading further malicious content. The presence of multiple redirector links and the ML classifier's high confidence score indicate a malicious intent to lead users to harmful infrastructure.

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/479516143/free-minecraft-accounts-reddit-game-hack In PDF document text
    • http://falconshipping-uae.com/userfiles/files/how-to-get-free-items-in-roblox-tagalog-2021-febuary_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/optifine-pe_GM479516143.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-hack-2021-iphone_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/pubg-600-uc-in-pakistani-rupees_GM1330123889.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/robux-hack-no-download-2021_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/earn-free-robux-rbxblaster_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-code-for-free-spins_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-free-spins-for-iphone_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/roblox-comcom_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/wurst-mc_GM479516143.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/how-to-get-free-robux-2021-no-human-verification_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_off0000317a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x317A 22444 bytes
SHA-256: 0c16eb2a83a17cd370fa4dcb06436065e1fe3a896d868b080ae4ad3d973d9b12
font_01_sfnt_off00006391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6391 18312 bytes
SHA-256: 50d1f005f3bc6c9a70cadb60561a4ebd3838a82c7b608e060fe80223842f44a3

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