PDF malware analysis — malicious · 5469667be1d5ee37

MALICIOUS

PDF

46.6 KB Created: 2021-06-03 22:10:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: e70fe9b299d621f17803424adbfc6171 SHA-1: 80933f338f4d1aa64df336b5c649e6e191f5cb7e SHA-256: 5469667be1d5ee37eadc6bbaabebf447937b1b51f2e0704f71e1f179d476966f

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 0.9748

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.online/app/406889139/how-to-get-free-spins-and-coins-in-coin-master-game-hack PDF link annotation
- https://www.bridalguide.com/sites/default/files/files/free-tiktok-followers-and-likes_GM835599320.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-spins-coin-master-march-2021_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-coin-master-cheats_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-robux-today_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/apps-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-robux-now_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-robux-no-verification-2021_GM431946152.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_004_off0000516f.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x516F	24248 bytes
SHA-256: `84cfbec00e792b84754b36a7b03c146f101e0af41cd87a1a1983864e7aae1271`
`font_01_sfnt_off00008935.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8935	2980 bytes
SHA-256: `7759d00b2b93864c79bc0fca70ffdcdc34d821ecd92b660f9baf4d82407f8209`
`font_02_sfnt_off00009388.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9388	18224 bytes
SHA-256: `1a177d96c25f70e29c96d18ff08cc0e48255fbbd4539b1ca90a782c549603dc1`

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