PDF malware analysis — malicious · ea35287dd6f24d38

MALICIOUS

PDF

31.1 KB Created: 2021-07-20 22:54:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: ccc7085c128887e9e255268407b809f7 SHA-1: ac05154948a7c7a7fb6c011ceb513566a98f9ee1 SHA-256: ea35287dd6f24d38bd7bf3b8b4a423f525e446f7608eee9b5e89ba71ad9f8827

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links, including one to a known malicious redirector at http://netcdn.tw/app/431946152/robux-free-c-game-hack, which is presented as a "Robux Free C" generator. The document body also contains a call-to-action to "CLICK HERE TO ACCESS ROBUX GENERATOR". This indicates a social engineering lure designed to trick users into visiting malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9893

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/robux-free-c-game-hack In PDF document text
- https://magistrinfo.ru/images/free-tiktok-coins_GM835599320.pdfIn PDF document text
- https://magistrinfo.ru/images/how-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://magistrinfo.ru/images/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
- https://magistrinfo.ru/images/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
- https://magistrinfo.ru/images/free-robux-script_GM431946152.pdfIn PDF document text
- https://magistrinfo.ru/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
- https://magistrinfo.ru/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
- https://magistrinfo.ru/images/free-robux-2021_GM431946152.pdfIn PDF document text
- https://magistrinfo.ru/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
- https://magistrinfo.ru/images/free-spins-and-coins-for-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
`stream_002_off000026f9.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x26F9	21956 bytes
SHA-256: `86fbf0c8d587bcfa8ad1bede41474f3ed3ee620b519bd1c1a899acba80911536`
`font_01_sfnt_off0000579a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x579A	18200 bytes
SHA-256: `50a8db40b3296b66d147aa340edfc40c86b84ccd1bf64d2fa2fad10f005dfcb5`

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