Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1f0c164366a9147…

MALICIOUS

PDF

31.5 KB Created: 2021-07-19 06:39:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3cd394de48a5b1c6d4c0b786c1f03ebe SHA-1: 30eb72f0b1a4536758fd5ee74e5d8cec73bc6e3f SHA-256: f1f0c164366a91471f45c4914a66477c610c04db9059a8f0be16f70e8c1ac477
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, specifically advertising 'free generator' or 'game hack' lures. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely to lead users to download further malware or compromise their accounts. The primary malicious URL identified is http://netcdn.tw/app/431946152/how-to-hack-robux-game-hack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9893

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/431946152/how-to-hack-robux-game-hack In PDF document text
    • https://jasperfirstumc.com/images/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • https://jasperfirstumc.com/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://jasperfirstumc.com/images/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://jasperfirstumc.com/images/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • https://jasperfirstumc.com/images/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://jasperfirstumc.com/images/free-tiktok-likes-2021_GM835599320.pdfIn PDF document text
    • https://jasperfirstumc.com/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://jasperfirstumc.com/images/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://jasperfirstumc.com/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://jasperfirstumc.com/images/free-minecraft-premium-account_GM479516143.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_off00002756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2756 22000 bytes
SHA-256: 24718866d8621f6607ed581744896382cc4112fbdd51fbd53281bbc4ea138bc0
font_01_sfnt_off000057ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57ED 18600 bytes
SHA-256: 7c5ff762db40ff60d19cddaa2cd841e426f32038f807492082aa9253f0367983