PDF malware analysis — malicious · 9535a984b9818253

MALICIOUS

PDF

36.5 KB Created: 2021-06-20 02:02:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: c312a7db0ed4d7e7414c6611ce34e9f3 SHA-1: 8ff7211d5a4e3c858230b594ad3407a4d90f74eb SHA-256: 9535a984b9818253606d0a52b1354aa9051094308fd6c8274a0ad8c94bf26ac3

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to sites offering 'game hacks' and 'free generators', aligning with a phishing or scam lure. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the presence of known malicious redirector infrastructure. While no scripts were explicitly extracted, the document's structure and embedded URLs suggest it is designed to lead the user to potentially malicious content, likely as part of a phishing campaign.

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/comment-etre-un-hacker-sur-roblox-francais-game-hack In PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/give-me-robux_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/do-you-want-free-robux-get-unlimited_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-cheats_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-app-hacks_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/robux-hack-2021_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/easy-robux-hack_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-spin_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-100-spin-slot_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-tiktok-likes-and-followers_GM835599320.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_off0000349b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x349B	23224 bytes
SHA-256: `a073eaef03bb90855758a62800220b45d8be383fd8723b6c4e0c6c6bfa1b77fb`
`font_01_sfnt_off000068b1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68B1	19444 bytes
SHA-256: `0d7b62cd531cf68aafb7dd5cb69844df1105fc1f197b13774946083c6e28a321`

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