Malicious PDF — malware analysis report

Static analysis result for SHA-256 a38504eb4046094a…

MALICIOUS

PDF

35.1 KB Created: 2021-06-26 11:17:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8fa8e41565b2cc3784588c9d3e20b61e SHA-1: 1d3c8810ef4058faf4f585b07922634d8e90d974 SHA-256: a38504eb4046094a6e09186b8ab2451c11b5df224e3f22b5e524b032f03c1ef2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as 'game hacks' and 'free generators'. The primary lure is a link to 'how-to-hack-into-any-roblox-account-2021-game-hack'. The document body and embedded URLs suggest a phishing or scam attempt to lure users to malicious sites, likely for credential harvesting or further malware delivery. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/how-to-hack-into-any-roblox-account-2021-game-hack In PDF document text
    • https://ethraa.ae/userfiles/files/free-robux-live-2021_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/minecraft-client-download_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/boku-no-hero-roblox-hack_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/hack-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/minecraft-free-android_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-robux-obby_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/robux-generator-that-works_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-free-robux-without-paying-or-human-verification_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-cheat-apk-free-download_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-robux-generator-no-verification-2021_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_off000032c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C4 21636 bytes
SHA-256: 9e1ac0513539446dd087ef1322fc0a4bdd0d563518a897f77ebee1b00214694d
font_01_sfnt_off00006225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6225 19644 bytes
SHA-256: e2d8c129faa5f7c6530aed85c2c9cadeb644629b6f224744f5534f81215444f8

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