Malicious PDF — malware analysis report

Static analysis result for SHA-256 f78d43492f295da5…

MALICIOUS

PDF

35.7 KB Created: 2021-06-25 22:05:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7c484cb75f6e6bccee7fd90698879c96 SHA-1: 71b0bd5ef3330583a92cf32fdd11f255804122f7 SHA-256: f78d43492f295da5356ec81bbeba5f39e6646009f1bf02c07a53a9e5e671f8e0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to known malicious redirectors, disguised as game hacks and generators. The document body and heuristics indicate a lure for users interested in free in-game items, likely leading to further malicious content or malware downloads. 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/dragon-ball-z-rage-roblox-hack-2021-game-hack In PDF document text
    • http://www.tdbaska.hr/files/free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/how-to-hack-on-roblox-windows-10-hp_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://www.tdbaska.hr/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://www.tdbaska.hr/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://www.tdbaska.hr/files/roblox-cheat-ro-ghoul-2021_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://www.tdbaska.hr/files/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • http://www.tdbaska.hr/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/hack-version-of-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • https://www.tdbaska.hr/files/how-to-get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.tdbaska.hr/files/play-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tdbaska.hr/files/free-roblox-coloring_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
    • http://www.tdbaska.hr/files/oprewards-com-robux_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/funbloxxyz-free-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_off00003282.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3282 22924 bytes
SHA-256: 86a0b00ecefddf6db830383d009dd547d4ec33d043ed1b5f868f0dc6f21ba36a
font_01_sfnt_off000065ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65AD 19320 bytes
SHA-256: 56817c9ebca243ee3adb640f3b3111f8a11c53b0099255a10db6924ec452489e

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