PDF malware analysis — malicious · 104869ee4c4c5cb6

MALICIOUS

PDF

43.7 KB Created: 2021-05-19 05:00:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: d2b50be0219469894ed668b2267e7580 SHA-1: 2bc003f399b6f9c75352e34290daab3867858597 SHA-256: 104869ee4c4c5cb63f4688dd46490b026fc0ef3ecfa8538d8141e3600c01de59

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free Robux' or game hacks. The document body and embedded link actions confirm the intent to direct users to these malicious URLs. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/get-free-robux-now-game-hack In PDF document text
- http://www.homesweethome.pl/images/coin-master-spins-hack-iphone_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-spins-on-coin-master-cheat_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/minecraft-free-no-download_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-free-spinv1-0apkpure-com-apk_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/op-rewards-free-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-scam_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/easy-robux-generator_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-free-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/earn-free-robux-today_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/robux-converter_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-survey_GM431946152.pdfIn PDF document text
- https://krnl.rocksIn 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_off00004ad1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4AD1	27732 bytes
SHA-256: `09cf3ab6256b7b76a26de114dff0cca1311f27780a6014d86adfc9061a963785`
`font_01_sfnt_off00008859.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8859	18280 bytes
SHA-256: `538c9dd0db01d2f7ccbac1c4b1e59781ee6b2d24c7879b3cb67aab50807a8027`

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