PDF malware analysis — malicious · ab87fb0b2e50773d

MALICIOUS

PDF

36.1 KB Created: 2021-06-25 03:16:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 85aa4ed648a07d9c27aef702125a1fc3 SHA-1: 8082cca6a6f4e9ba6d4589b3830367cc5f376301 SHA-256: ab87fb0b2e50773d3390dd4d5eae78bb45be52e540720f4dc95cd44bc4cf8109

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

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/how-to-hack-a-roblox-server-2021-game-hack PDF link annotation
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/coin-master-hacks-and-cheats_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/roblox-tradelands-cheat_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/free-minecraft-alts_GM479516143.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/roblox-free-shirts-and-pants-catalog_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/roblox-dayz-cheat-code_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/in-roblox-field-of-battle-how-do-you-hack_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/tiktok-free-followers-hack_GM835599320.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/free-coin-master-spins-link-download_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/coin-master-free-coins-today_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/jailbreak-roblox-code-speed-hack_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/free-robux-roblox-download_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/how-to-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.marvelorlubricants.com/uploaded_files/userfiles/files/how-to-hack-roblox-for-robux_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_off00003498.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3498	22516 bytes
SHA-256: `2956c684bda182f99f5deee136c66d7b53f337a91aaede8bdc5434974f25447f`
`font_01_sfnt_off000066fe.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66FE	19336 bytes
SHA-256: `e5160c7769adf2323b3c58188f1092fac752cdb4c076c23a542b6cd40d245ff1`

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