PDF malware analysis — malicious · 03d12aa7e0677ee4

MALICIOUS

PDF

33.6 KB Created: 2021-07-03 15:10:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21

MD5: 5e3d138c319deafd3490ac38d96830a7 SHA-1: 2f3958f22748b6fde0da50994d71735bd411eb69 SHA-256: 03d12aa7e0677ee467f3de4606f854d997787016cae23c67f5fdd3a279362fd1

260 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game items and accounts to trick users into clicking malicious links. It contains numerous links to external PDFs and a known malicious redirector, suggesting it's part of a link farm designed to lead users to potentially harmful content. The document's structure and embedded links indicate a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 6

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.
Invisible PDF links to CAPTCHA-themed web lure high PDF_CAPTCHA_LINK_LURE

PDF contains invisible clickable link annotations that point to a CAPTCHA/capcha-themed web path. This is a common phishing and ClickFix-style routing pattern: the PDF itself is inert, while the linked page performs the credential prompt or fake verification.
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/835599320/free-tiktok-accounts-game-hack In PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/what-do-points-do-in-roblox_GM431946152.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/free-crush-famliy-roblox-id_GM431946152.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/free-items-in-roblox-2021_GM431946152.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/roblox-blue-tatoo-free_GM431946152.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/i-am-gonna-hack-your-roblox-account_GM431946152.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/free-tiktok-followers-no-human-verification_GM835599320.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/free-robux-website_GM431946152.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/slurp-cheat-in-roblox-download_GM431946152.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/coin-master-hack-apk_GM406889139.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/comant-avoir-le-shop-de-roblox-free_GM431946152.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/get-robux-for-free-and-quickly_GM431946152.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/how-to-hack-in-roblox-without-recaptcha_GM431946152.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/free-robux-without-paying-money-for-typing-password_GM431946152.pdfIn PDF document text
- http://clinicamanila.com/ckfinder/userfiles/files/free-robux-without-verification-2021_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_off000030d1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30D1	21956 bytes
SHA-256: `f8a4fb78d9863c0ece02331dba907154c772d90a3e055aad0f8f96bcb5d79ab2`
`font_01_sfnt_off0000611e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x611E	18112 bytes
SHA-256: `774d6147ebe616fdf354a1aaf563624e9ddd0922deb4a5b2bb6d029eb0ad17b7`

Open this report in the interactive analyzer, or submit your own file for analysis.