PDF malware analysis — malicious · 4c940f4306958a50

MALICIOUS

PDF

46.0 KB Created: 2021-05-31 17:54:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 3e491109023fd62bc6c4305c5fe4358f SHA-1: eac222b30fda21db0827ffc83da8a9d8b6a55d23 SHA-256: 4c940f4306958a5085f771b6c9990f67ae3a9ea44f31ec7fa5131dbcd8c4eba4

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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/how-to-hack-lumber-tycoon-2-roblox-game-hack PDF link annotation
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/roblox-admin-hack-2021_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-skateboarding-game-on-roblox_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/minecraft-com-free_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-superhero-roblox_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/does-roblox-ever-give-free-robux_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-robux-come_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/hacked-robux-oh-shit-meme_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-views-on-tiktok_GM835599320.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-tiktok-followers-no-survey_GM835599320.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/seraph-roblox-hack-download_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/is-there-anyway-to-get-robux-for-free_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/robloxgiveaway-xyz-roblox-online-hack_GM431946152.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_004_off000052e3.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x52E3	25732 bytes
SHA-256: `25a0d37366e1e6b34ed49b47a35f6d74147ca54b842a148ab675067d55eb941a`
`font_01_sfnt_off00008edb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EDB	19048 bytes
SHA-256: `9516150f1d46136b87df4d31424f5facfc281925438f87bb6ed2397896dc3a46`

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