PDF malware analysis — malicious · 98f7e5703e9f2ab1

MALICIOUS

PDF

45.1 KB Created: 2021-06-03 08:51:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21

MD5: b58da97016008d6351c71635829969dd SHA-1: 1157c4c181c12c3d8c5bc461ee708492a1e94f9c SHA-256: 98f7e5703e9f2ab1d0db58d5b789ef9d1d9921462cc2e2cd6229fb73a4b93700

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, including one prominently displayed as a 'Roblox Hack Me' generator. The document body, though heavily obfuscated, contains references to this lure and the associated URL. The presence of numerous external PDF links suggests a link farm designed to improve SEO for malicious content, further indicating a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/431946152/roblox-hack-me-game-hack In PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-link-facebook-page_GM406889139.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-unlimited-spin-apk-free-download_GM406889139.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/free-spins-coin-master-generator_GM406889139.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/optifine-mcpe_GM479516143.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/get-free-robux-today_GM431946152.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
- https://www.hagleygolfclub.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-tiktok-likes_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
`stream_004_off000051e1.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51E1	26436 bytes
SHA-256: `567400eaa27e5958221f5a335e5e17014a2d4b33b82382ad74b46cc33f2c16ec`
`font_01_sfnt_off00008d84.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D84	18376 bytes
SHA-256: `aef395c884b1121fa113f915db4056a7b0027cd471dc4d96a5cdd03c50f60cf3`

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