Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b6dcd8d3d7c4a03…

MALICIOUS

PDF

34.0 KB Created: 2021-07-03 11:47:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9a4cc17e762afbed94d3cbe1670400c6 SHA-1: 2695588b2220434f630ae8c0349ccc5de520851a SHA-256: 1b6dcd8d3d7c4a03458b564de916763059b6cd84e649eb1e3f7ff896dfd78296
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The primary lure URL is http://netcdn.tw/app/431946152/robuxmatchcon-game-hack, which is associated with known malicious redirector activity. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or scam attempt designed to lead users to potentially harmful content or further malware downloads.

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/431946152/robuxmatchcon-game-hack In PDF document text
    • http://apartmani-mestrovic-krk.hr/files/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/how-to-hack-roblox-robux-2021_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/fly-hack-script-roblox_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/coin-master-hacks-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/free-robux-link_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/coin-master-hack-online-without-human-verification_GM406889139.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/anti-roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/50-free-spins-coin-master-links_GM406889139.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_off00002ddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DDB 22320 bytes
SHA-256: 32e80d71cdb26e5e972d198fe9d2cc54e72c2e4a9cc24e484b5205183517bbbf
font_01_sfnt_off00005fb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB6 19084 bytes
SHA-256: 22fb853357d700a883506443e03244379ebe89dfe763389f41fb0df375e68649

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