PDF malware analysis — malicious · 0f1ae26b45aac9ca

MALICIOUS

PDF

33.0 KB Created: 2021-07-19 16:40:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 806e1f65bbbeb0a9313dce750ff03845 SHA-1: b4999f64aa1410c9b8b41a503196b3681f9159e0 SHA-256: 0f1ae26b45aac9ca4ae460dc345f7efb84826cf30139b9e4ec51fa435676ffe1

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising game hacks and free currency generators. The document body explicitly mentions 'Roblox Apocalypse Rising Hack' and 'CLICK HERE TO ACCESS ROBUX GENERATOR', reinforcing the lure. The primary malicious URL identified is http://netcdn.tw/app/431946152/roblox-apocalypse-rising-hack-game-hack, which is flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness.

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/431946152/roblox-apocalypse-rising-hack-game-hack In PDF document text
- https://sitam.co.in/images/minecraft-svg-free_GM479516143.pdfIn PDF document text
- https://sitam.co.in/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
- https://sitam.co.in/images/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
- https://sitam.co.in/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://sitam.co.in/images/tiktok-fans-free_GM835599320.pdfIn PDF document text
- https://sitam.co.in/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
- https://sitam.co.in/images/minecraft-free-app_GM479516143.pdfIn PDF document text
- https://sitam.co.in/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://sitam.co.in/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://sitam.co.in/images/100-free-spins-coin-master_GM406889139.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_off00002ac1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2AC1	22392 bytes
SHA-256: `4bb25b97db11db8bcb20f32e5d0522eea4f90b23ce78de950dce2a0a5a271e97`
`font_01_sfnt_off00005c48.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C48	19132 bytes
SHA-256: `651d17f63489d7d9904d5dc3a19a67d5fd9222a84a82bec40a66d71e1dc68991`

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