Malicious PDF — malware analysis report

Static analysis result for SHA-256 c715774ee4eb7127…

MALICIOUS

PDF

34.6 KB Created: 2021-07-03 13:42:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 45c9b69748f1117ff5677336493d4ba2 SHA-1: deff23a5dac8ef83a8b0fa3f23c5a470281a401e SHA-256: c715774ee4eb7127eb8797b796753ebf79a27b9b2c3a5aad927aca3fe428fe38
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/431946152/roblox-hacks-2021-game-hack. The document body and heuristics indicate a lure related to game hacks and free generators, suggesting the intent is to trick users into downloading further malicious content. No scripts were extracted from this sample.

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/431946152/roblox-hacks-2021-game-hack In PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/roblox-free-hate_GM431946152.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/roblox-what-to-do-when-you-get-hacked_GM431946152.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/download-coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/has-your-roblox-account-been-hacked_GM431946152.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/roblox-hack-rape_GM431946152.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/coin-master-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/gamepasses-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/free-roblox-stuff-links_GM431946152.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/roblox-reddit-hacks_GM431946152.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/coin-master-codes_GM406889139.pdfIn PDF document text
    • https://www.jogjamanisfoods.com/ckfinder/userfiles/files/roblox-weight-lifting-simulator-3-hack-download_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3008 22312 bytes
SHA-256: d6e38bc9cba5a0e11649a204dcdf4b27a04731a26338af3f4839b94c2a38e372
font_01_sfnt_off000061d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D1 19056 bytes
SHA-256: a827687bde1c23907f75db23928d8c544c1849638492c2c48bf6e5fa6ea38882

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