Malicious PDF — malware analysis report

Static analysis result for SHA-256 af5eb982c6494e04…

MALICIOUS

PDF

33.7 KB Created: 2021-06-17 20:12:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 97073d8c8074e27a48c9e5cbb68642a2 SHA-1: 24162751e4a09a528535171915dcf2eaf67315bb SHA-256: af5eb982c6494e049282927053cf3bf0875146eefd6f46f85820a97733a01a2a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains links to a known malicious redirector infrastructure, specifically designed to lure users with promises of game hacks and free in-game currency. The document body and embedded URLs strongly suggest a phishing or scam attempt to drive traffic to potentially malicious sites. While no scripts were explicitly extracted, the PDF format and redirection behavior are consistent with techniques used to deliver second-stage payloads or exploit browser vulnerabilities.

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/como-hackear-cuentas-de-roblox-2021-game-hack In PDF document text
    • https://dolphintour.vn/images/uploadsfiles/increible-hack-de-roblox-que-funciona_GM431946152.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/free-minecraft-account-and-password-generator_GM479516143.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/free-robux-mobile_GM431946152.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/best-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/roblox-hack-tools-download_GM431946152.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/robux-win_GM431946152.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://dolphintour.vn/images/uploadsfiles/hack-robux_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_off00002da8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DA8 21532 bytes
SHA-256: ca78013588143d054018b1a25e8c9683867e567820528e34778c9c1737447cc6
font_01_sfnt_off00005cf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF8 19544 bytes
SHA-256: a84764d0983cdf96e79a624e28baf77a1690206c9b3776750b38d5bbc944aacb

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