Malicious PDF — malware analysis report

Static analysis result for SHA-256 edd16e9ccfd996e6…

MALICIOUS

PDF

48.0 KB Created: 2021-05-19 03:02:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9988e36030e3c1f691075e880bdee47b SHA-1: f9441f81cf5cc6c8c26a65985d7c0cd082e9607a SHA-256: edd16e9ccfd996e669c01c6c449b9da35939b981d160a9a47d1160106a9d9928
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector domains, specifically advertising 'free generators' and 'game hacks' for popular games like Roblox. These links likely serve as a lure to download further malicious content or phish for user credentials. The ML classifier also flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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 https://netcdn.xyz/app/431946152/roblox-avatar-free-game-hack In PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/robux-for-offers_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/robux-miner_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-admin-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/give-free-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/wurst-client-download_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-free-link-daily_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c33.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C33 25604 bytes
SHA-256: 671ef85bae11c7d39ee0dfc861f596b62182b4d4aa66f17bf6e38478c9b25bca
font_01_sfnt_off000086ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86EF 7448 bytes
SHA-256: a76ff9b4805dcff342f7268a16e2e3c2ff2b31b96c381fe4deb6ceea777bce90
font_02_sfnt_off000098d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98D2 18396 bytes
SHA-256: fabbc4d33b4fd44a10480a095a1b5872a696080c7c42ded8a290903470f97fc4

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