PDF malware analysis — malicious · a4d15ef5ac0e15e5

MALICIOUS

PDF

34.5 KB Created: 2021-06-17 16:50:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 5ec1803b721eae351deb21fa68bd18a0 SHA-1: f020108a618517c2bb4bdbd09ff70b7a8e0aeb5e SHA-256: a4d15ef5ac0e15e5ae221266fadc9d7fe8cb2153592f0fbfbcd8adc997855253

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a 'game hack' or 'free currency generator'. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a social engineering tactic to drive traffic to potentially harmful sites.

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-get-builders-club-for-free-in-roblox-game-hack In PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/free-robux-no-human-verification-2021-or-survey_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/free-robux-apk_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/minecraft-pocket-edition-hack_GM479516143.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/easy-robux-hack_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/roblox-noot-noot-hack-song-roblox-id_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/roblox-18_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/get-free-roblox_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/pink-lobster-ru-5c20212021846-roblox-hack-pro-cheat-exe-32e22_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/is-coin-master-hack-safe_GM406889139.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-download-minecraft-for-free-on-pc_GM479516143.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00002f68.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F68	22456 bytes
SHA-256: `79ae3ace7a981e1a617d18f5ad48322f4641b27e35ae60d478f7984a38f255cc`
`font_01_sfnt_off00006176.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6176	19168 bytes
SHA-256: `311cf6442400c422ad3d56377f8e504c6ca965c38d7b38f67ce23d86d5bf2187`

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