PDF malware analysis — malicious · ad8d8d0b824874a5

MALICIOUS

PDF

46.4 KB Created: 2021-05-20 02:40:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: d15fa0d48d224b387956888c3365c757 SHA-1: 7416ef80f4470b3592688b2498a89e1a914a68e2 SHA-256: ad8d8d0b824874a5c7ccb35e8a8ad640f06abe400c09ea54281c9ef059308369

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for linking to a 'free generator / game hack' redirector, specifically https://netcdn.xyz/app/431946152/free-robux-no-email-game-hack. This lure is intended to trick users into clicking the link, likely leading to a malicious website or a download. The document body and embedded artifacts do not contain executable scripts, but the presence of multiple suspicious URLs suggests a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.8948

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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-robux-no-email-game-hack PDF link annotation
- http://www.homesweethome.pl/images/free-robux-quiz_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/como-hackear-coin-master-iphone_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-coin-master-spins-link-download_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/hack-master-coin_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-offers_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-co_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/minecraft_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/wurst-112_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://www.homesweethome.pl/images/how-to-make-free-robux_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
- http://www.homesweethome.pl/images/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
- http://www.homesweethome.pl/images/google-roblox-games_GM431946152.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/master-game_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004996.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4996	25448 bytes
SHA-256: `af9fc4b4995920e960f0ce298a97c242120ef252da6bb2077bf336570adbef2c`
`font_01_sfnt_off0000852f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x852F	3884 bytes
SHA-256: `40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf`
`font_02_sfnt_off000091d6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91D6	18696 bytes
SHA-256: `c87d8ac99bb6295dbf621d5ce4d48bdb441e63486eed0d538621ad0af406e722`

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