PDF malware analysis — malicious · 0ca9a28e07561575

MALICIOUS

PDF

34.6 KB Created: 2021-07-19 09:14:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 05e9a8d8ac21efd7b87b2600fbde5ac8 SHA-1: 7b2f8fee8df2a73e3c0e0fae43319ed6def2279c SHA-256: 0ca9a28e0756157504a176c898158e9f1791c4b2b171a0a61c09872dec84ccff

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game currency, directing users to a known malicious redirector infrastructure. The document body and embedded URLs strongly suggest a phishing or scam attempt to trick users into visiting malicious sites. No scripts were extracted, but the presence of embedded URLs and the lure indicate a high likelihood of further malicious activity.

Machine Learning

Nyx PDF Classifier malicious score 0.9955

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/431946152/how-to-get-free-robux-without-downloading-apps-game-hack In PDF document text
- https://agroturismoarkaia.com/images/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
- https://agroturismoarkaia.com/images/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
- https://agroturismoarkaia.com/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
- https://agroturismoarkaia.com/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
- https://agroturismoarkaia.com/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://agroturismoarkaia.com/images/robux-free-2021_GM431946152.pdfIn PDF document text
- https://agroturismoarkaia.com/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
- https://agroturismoarkaia.com/images/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
- https://agroturismoarkaia.com/images/free-tiktok-followers-no-survey_GM835599320.pdfIn PDF document text
- https://agroturismoarkaia.com/images/was-minecraft-ever-free_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_off00002cc6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2CC6	22956 bytes
SHA-256: `05fa7735fc90e2b8fbcc49bbe0b271d1aaa52687f4eea130cae93449ac3fcb62`
`font_01_sfnt_off00006008.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6008	20060 bytes
SHA-256: `6e94c5c8881882933776c960b9e67a14efc63d12ba8648f25af912841d0362c2`

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