Malicious PDF — malware analysis report

Static analysis result for SHA-256 3575e0fd4d253b80…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 08:39:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 101fdf097c4094d14480bd62c34085af SHA-1: 987e5f50ce57f704b22bd1fe84c2d7a50195724d SHA-256: 3575e0fd4d253b80043d6f6e68153c70e5ab5cb14dc04c5c69e886d4d35d253a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to a site offering a 'game hack' and 'free generator', a common lure for malware distribution. The heuristic firings confirm the presence of malicious redirector infrastructure and a lure for game-related cheats. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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/479516143/minecraft-pe-apk-game-hack In PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-dragon-ball-z-online-cheats_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/robux-free-online_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/seitama-roblox-free-shop-t-schirts_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/minecraft-windows-10-mod-menu_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/bux-free-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-egtv-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-game-hack-link_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-often-pubg-uc-advance_GM1330123889.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/tshirt-hacker-roblox-png_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-roblox-logo-favor-bag_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_off000030c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C7 22632 bytes
SHA-256: 11cfb70e60ff6f9c2d9250be1197f40d564336777051e41a1ef4090903ea70e3
font_01_sfnt_off000062d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D7 18356 bytes
SHA-256: be91706a5984af6f52632c5b435120e4fc5e0e81192531de8d8fc3d36aaddc1b

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