PDF malware analysis — malicious · 17c2cf9f5e7735af

MALICIOUS

PDF

33.8 KB Created: 2021-06-20 22:41:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 807d05276d063bceaca783821f647bf7 SHA-1: 179b83f9bee9a9ec9030f69b13bc265fee4bfad2 SHA-256: 17c2cf9f5e7735afe5cb55281e09e71da9d885d265c903d9e5ed268bdb3b5dde

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 0.9980

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/free-robux-easy-game-hack PDF link annotation
- http://www.dohafashionstores.com/uploaded_files/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- http://www.dohafashionstores.com/uploaded_files/userfiles/files/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
- http://www.dohafashionstores.com/uploaded_files/userfiles/files/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
- http://www.dohafashionstores.com/uploaded_files/userfiles/files/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
- http://dohafashionstores.com/uploaded_files/userfiles/files/robux-free-2021_GM431946152.pdfIn PDF document text
- http://dohafashionstores.com/uploaded_files/userfiles/files/minecraft-win-10-free_GM479516143.pdfIn PDF document text
- http://www.dohafashionstores.com/uploaded_files/userfiles/files/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
- http://dohafashionstores.com/uploaded_files/userfiles/files/pubg-uc-200_GM1330123889.pdfIn PDF document text
- http://dohafashionstores.com/uploaded_files/userfiles/files/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://dohafashionstores.com/uploaded_files/userfiles/files/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
- http://dohafashionstores.com/uploaded_files/userfiles/files/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
- http://www.dohafashionstores.com/uploaded_files/userfiles/files/free-roblox-com_GM431946152.pdfIn PDF document text
- http://www.dohafashionstores.com/uploaded_files/userfiles/files/minecraft-account-hacked_GM479516143.pdfIn PDF document text
- http://www.dohafashionstores.com/uploaded_files/userfiles/files/how-to-generate-pubg-uc_GM1330123889.pdfIn PDF document text
- http://dohafashionstores.com/uploaded_files/userfiles/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
- http://dohafashionstores.com/uploaded_files/userfiles/files/coin-master-hack-progamers_GM406889139.pdfIn PDF document text
- http://dohafashionstores.com/uploaded_files/userfiles/files/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
- http://www.dohafashionstores.com/uploaded_files/userfiles/files/roblox-scam_GM431946152.pdfIn PDF document text
- http://www.dohafashionstores.com/uploaded_files/userfiles/files/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
- http://www.dohafashionstores.com/uploaded_files/userfiles/files/coin-coin-master-hack_GM406889139.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_off00002fb6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FB6	21636 bytes
SHA-256: `77e4a233c15417a1bf2134ff355bda3c367bbf8786d2f766cdb1ea99e879a4e7`
`font_01_sfnt_off00005f6d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F6D	18896 bytes
SHA-256: `08474bdc287d3651cd8985bef3354d1e01eac2de28e8a43cfa13c093cfea4674`

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