PDF malware analysis — malicious · 76b84fca4e75a063

MALICIOUS

PDF

35.8 KB Created: 2021-06-28 20:49:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12

MD5: a5e2f7e9a488080a1d336b255be146d8 SHA-1: e1de53b1304092294d75e234a089367bdafa0945 SHA-256: 76b84fca4e75a063347b34a8068a8e80ac4d30a8ecad2c58fd6f30d55b62e767

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to lure users into clicking on them by promising free game currency or hacks. The primary link directs to a known malicious redirector, which likely serves as a gateway to further malicious content or downloads. The document body and heuristics indicate a scam related to game exploits, suggesting a phishing or social engineering attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/free-5-robux-game-hack In PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/free-robux-easy-no-verification_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/free-robux-money-adder-apk_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/how-to-hack-into-roblox-and-get-robux_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/how-to-get-robux-for-free-2021-for-kids_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/info-roblox-hack_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/coin-master-apk-mod_GM406889139.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/hacks-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/robux-hack-real-no-human-verification_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/how-to-get-free-chothes-on-roblox_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/roblox-games-with-free-radio_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/guess-the-character-roblox-free-robux-answers_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/free-spin-link-in-coin-master-game_GM406889139.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/best-free-robux-sites_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/free-robux_GM431946152.pdfIn PDF document text
- https://e-learning-ma-nurussaadah.com/__statics/gudangsoal/files/dominus-infernus-free-that-cost-1-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.

Filename	Kind	Source	Size
`font_00_sfnt_off000033ff.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x33FF	22976 bytes
SHA-256: `dc12cc32f3319995c7c729f4f75cdabac262413e15c611ee5d7a39837f99fca5`
`font_01_sfnt_off0000679b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x679B	18848 bytes
SHA-256: `907f1e43175c9f6cf7733d395d58f16dc1a88d8e1e3d37ee830b9ba66cbc6e32`

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