PDF malware analysis — malicious · 6d3e0a569ba9dc38

MALICIOUS

PDF

46.5 KB Created: 2021-05-31 10:31:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: c65614ae06fc390b97725de2f2a9a351 SHA-1: ceb06bbfaae4350a84a1e654b48608dcdf3c6d9f SHA-256: 6d3e0a569ba9dc3857bf02ae268dff4a14fcd232e9eae47a3f22acc3c1ae0c51

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 0.9832

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/seraph-roblox-hack-download-game-hack PDF link annotation
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/robux-gift-card-free_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/robux-hack-tools_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-minecraft-worlds_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-hack-an-roblox-account-2021-november_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-no-survey-no-offers_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-roblox-accounts-rich_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/robloxgiveaway-xyz-roblox-online-hack_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-robux-without-verification_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-views-on-tiktok_GM835599320.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_off0000519c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x519C	27184 bytes
SHA-256: `d7f861b25a47698593721459a6505014bccb35f1971af90c508626591aa42356`
`font_01_sfnt_off000090e9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90E9	19028 bytes
SHA-256: `c31f0d669ee2fc16ef1d5ec0f35631388a93e0b3eeeaf7d5a02ede1fcc165eeb`

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