Malicious PDF — malware analysis report

Static analysis result for SHA-256 59920b3eb585cb8e…

MALICIOUS

PDF

35.1 KB Created: 2021-06-28 18:21:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5f216f06bec3da61b5986bd34a4dfef2 SHA-1: d739c71b416537508e84725eea1f7f8fdf2e909b SHA-256: 59920b3eb585cb8e18e989f278c78373dce026461c7a520908c019b7868fe1d1
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.co/app/431946152/free-mad-city-vip-server-roblox-game-hack. This link is presented as a lure for game hacks, indicating a social engineering attempt to drive users to potentially malicious sites. No scripts were extracted, but the presence of embedded URLs and the lure suggest a phishing or scam attempt.

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/free-mad-city-vip-server-roblox-game-hack In PDF document text
    • http://www.peterbarsony.com/userfiles/files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-robux-for-free-2021-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-do-u-use-cheat-engin-with-roblox_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-sound-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-do-you-get-admin-by-hacking-roblox_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-official-page_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/pokemon-go-free-download-apk_GM1094591345.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/pokemon-go-free-box_GM1094591345.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-apk-hack-32_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-fan_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_off00002fa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA4 22700 bytes
SHA-256: 09ddfbf4d21f3054e706b217e1e2f8f0ef3e59467b2d3139d1a3559f045130f9
font_01_sfnt_off000061e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E4 19848 bytes
SHA-256: f644fc1cc26030b5c81d6a164020f6f8cbedfb304b06d90e87d48c35d7c704cf