Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecaa84a6a3616e83…

MALICIOUS

PDF

35.2 KB Created: 2021-06-25 10:52:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 64adaf1262f9ca0ea1619993601f0770 SHA-1: d5bafb86833be1fe24d4c0d4130726456f3b0bb2 SHA-256: ecaa84a6a3616e83239072a9090ae7e0f1154a864f21dbe050cd0e5b9e1ce885
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and websites promising game hacks and free currency, such as 'hack-the-computer-roblox-game-hack'. These links are designed to lure users into clicking, likely leading to further malicious downloads or phishing attempts. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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/hack-the-computer-roblox-game-hack In PDF document text
    • http://force-seniorklub.dk/images/free-robux-membership_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://force-seniorklub.dk/images/santix-roblox-hack_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/free-robux-free-2021_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/codes-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/trailer-roblox-hack_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/best-free-hacked-client_GM479516143.pdfIn PDF document text
    • http://force-seniorklub.dk/images/how-to-get-free-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://force-seniorklub.dk/images/coin-master-free-spins-fb_GM406889139.pdfIn PDF document text
    • http://force-seniorklub.dk/images/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/robux-free-generator-no-survey-legit_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/roblox-report-cheater_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://force-seniorklub.dk/images/ebay-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/how-to-hack-roblox-on-ipad-2021_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/hack-comment-avoire-des-objets-gratuits-roblox_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/hacks-for-roblox-mobile_GM431946152.pdfIn PDF document text
    • http://force-seniorklub.dk/images/free-minecraft-bedrock-server_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_off000030f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F5 22620 bytes
SHA-256: 1f2dbeabab20a4ed662467d1f2cde47e92107da94d0351ea797dd8ba0ac6f7ad
font_01_sfnt_off00006372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6372 19500 bytes
SHA-256: 31f8b2b7dc02282f296ab97e37e2ca21f45dc2fb5dd7d04a8807b1953e602f84

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