PDF malware analysis — malicious · 3a7417e84a8cd780

MALICIOUS

PDF

42.3 KB Created: 2021-05-21 18:36:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: cb62273254e62f7635f025a85f37815c SHA-1: 064e2115db728e15154a90071ec3ec112cba8196 SHA-256: 3a7417e84a8cd780631f5a195dcf309933379f99e9a7190ff2cfae0fbc1ffaf7

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generators' or 'game hacks' for popular games. The document body explicitly contains the text 'CLICK HERE TO ACCESS ROBLOX GENERATOR' and a URL pointing to malicious infrastructure, indicating a social engineering lure to drive users to potentially harmful content. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.8099

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 https://netcdn.xyz/app/431946152/free-draw-2-roblox-game-hack In PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/coin-free-spin_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/robux-no-survey_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/cpbildco-robux_GM431946152.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/coin-master-unlimited-spin-and-coin-hack_GM406889139.pdfIn PDF document text
- https://daring.mtsn1lamsel.com/__statics/gudangsoal/files/how-to-get-more-robux_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off00003135.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3135	25296 bytes
SHA-256: `4b107face58cf7624ce02b4e8e6ed3ed26a7d570c7ef6e1b9eaa9018be24b283`
`font_01_sfnt_off00006b7e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B7E	2844 bytes
SHA-256: `baad2f3f6808f4af03fa9398e38c580c8d846f7f773a947d8cc1f39b2753d31a`
`font_02_sfnt_off0000753b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x753B	5696 bytes
SHA-256: `450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139`
`font_03_sfnt_off0000824c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x824C	18632 bytes
SHA-256: `1948321e46036ef7a86fce7363c42741d482fdecd1af70e946b235d8b00c49b1`

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