PDF malware analysis — malicious · 141d07985dc45607

MALICIOUS

PDF

33.1 KB Created: 2021-06-22 21:19:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: aafb699c014a43a5ad09e85414a3b87e SHA-1: c516c444f13e8cc41c1ecf6f3055bf3fa8e254d3 SHA-256: 141d07985dc45607b6d21daeb439f66e9279d5e7e842babfd81dc76ef3cd487c

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 0.9824

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 http://netcdn.co/app/431946152/tiniest-roblox-avatr-with-free-items-game-hack PDF link annotation
- http://bressanassessoria.com.br/images/blox-land-free-robux_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/new-hack-for-roblox-deathrun-2021-pc-download_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
- http://bressanassessoria.com.br/images/free-shirts-on-roblox-2021_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/free-roblox-rigs_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/free-minecraft-codes_GM479516143.pdfIn PDF document text
- http://bressanassessoria.com.br/images/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/pastebin-hack-robux-fast_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/how-to-get-free-robux-without-buying-it_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/how-to-fly-in-roblox-free_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/coinmaster-links_GM406889139.pdfIn PDF document text
- http://bressanassessoria.com.br/images/el-mejor-video-de-hack-robux-gratis_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/how-to-make-a-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
- http://bressanassessoria.com.br/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/ex7-roblox-hacks_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/roblox-dragon-ball-rage-hack-mobile_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/coin-master-free-coins-link-blogspot_GM406889139.pdfIn PDF document text
- http://bressanassessoria.com.br/images/codes-jeu-hack-roblox_GM431946152.pdfIn PDF document text
- http://bressanassessoria.com.br/images/how-o-get-free-robux-2021_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
`font_00_sfnt_off00002a41.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2A41	22060 bytes
SHA-256: `2e0d8d1ddff0abd66e57d7baf998fc08bbd04add673b6e1fcc12e9d0e9bfcfb5`
`font_01_sfnt_off00005b1c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B1C	19612 bytes
SHA-256: `bc184017396ee48b6d54ae6dee7e89fefa0feaff96a0113df2edf91c222a8122`

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