PDF malware analysis — malicious · 7a7592a2fbbbcf8a

MALICIOUS

PDF

32.5 KB Created: 2021-07-25 15:10:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 8fb25a9e05c40bc28fd57369446b7dcf SHA-1: e739ec19b4cd2cf0a80a32042379ee57f65e1af9 SHA-256: 7a7592a2fbbbcf8a4d9f9629654db6cfea9bd82a787b4da852cf05eaafb1f158

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors that are flagged as malicious, specifically promoting "free generators" and "game hacks" to lure victims. The document body and embedded links strongly suggest a phishing or scam attempt, likely to deliver a secondary payload or lead users to credential harvesting pages. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9900

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.tw/app/835599320/get-free-tiktok-likes-game-hack In PDF document text
- http://islamkennis.com/images/rbx-free-robux_GM431946152.pdfIn PDF document text
- http://islamkennis.com/images/free-followers-for-tiktok_GM835599320.pdfIn PDF document text
- http://islamkennis.com/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- http://islamkennis.com/images/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
- http://islamkennis.com/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
- http://islamkennis.com/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
- http://islamkennis.com/images/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
- http://islamkennis.com/images/free-robux-master_GM431946152.pdfIn PDF document text
- http://islamkennis.com/images/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
- http://islamkennis.com/images/minecraft-windows-10-free-with-java_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_off00002bfe.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2BFE	22952 bytes
SHA-256: `00f4076c692ebb8596c6e6abecff023504b3902dfaf4a0ccabb7df22e69f6a3b`
`font_01_sfnt_off00005f51.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F51	17456 bytes
SHA-256: `c397690cc80b7cdd5818f6212e28c5067632df1cbe38d70f20361ec61b14abd9`

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