Malicious PDF — malware analysis report

Static analysis result for SHA-256 0071e94bdb251d17…

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 01:02:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cd4fa510cdeec872c18724b6497977a5 SHA-1: 6a11cde8a09aebc69f5646b1d8dee06143523b40 SHA-256: 0071e94bdb251d178d999bdd0fef4f21c976659377c74b77a2e0e8878f99ef9c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/406889139/free-coins-coin-master-game-hack. This link is presented as a 'free generator / game hack', indicating a social engineering lure to trick users into visiting potentially harmful sites. The presence of a visual download button further supports the deceptive nature of the document.

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/406889139/free-coins-coin-master-game-hack In PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/complete-offers-for-robux_GM431946152.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/free-daily-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/did-biggy-get-robux-free_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/claim-your-free-robux_GM431946152.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/50-free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/avatar-the-last-airbender-roblox_GM431946152.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/free-robux-promo-codes-2021-not-expired_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/apex-adventure-roblox-hack_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/pokemon-go-free-username-and-password_GM1094591345.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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
stream_002_off00002fee.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FEE 23576 bytes
SHA-256: 8759a9664e296138cfa6d779bb5756eb7faad5f61d48d1e90664e179319b8bfe
font_01_sfnt_off0000653b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x653B 17996 bytes
SHA-256: db592684bbdaaeb7647633841870edbd5981f70e843d3403859f62ceb8e0c83d

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