PDF malware analysis — malicious · 695397d56c347664

MALICIOUS

PDF

34.5 KB Created: 2021-06-27 15:53:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 71189f952fe1551077fd7dfe3893fbb3 SHA-1: 6a120c7e803f810b8685741a3462f44686a0ed74 SHA-256: 695397d56c347664d505ebdf402e8d038f93db810796c53cf68dd5ea3bd9434a

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/roblox-gift-card-online-free-game-hack PDF link annotation
- https://www.jjautomation.in/uploaded_files/userfiles/files/how-ro-get-free-robux-just-by-using-a-hat_GM431946152.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/is-there-a-way-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/coin-master-2021-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/400-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/free-robux-generator_GM431946152.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/free-robux-app_GM431946152.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/coin-master-fan_GM406889139.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/roblox-hack-ga_GM431946152.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/roblox-free-stuff-2021_GM431946152.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/coins-master-hacks_GM406889139.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/150-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/coin-master-hack-2021-app-download_GM406889139.pdfIn PDF document text
- https://www.jjautomation.in/uploaded_files/userfiles/files/roblox-promo-codes-free-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_off00002fe8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FE8	22368 bytes
SHA-256: `7fec92ba6ba1c70d0815acf73150a890e0eea26581ffce2b01d3c366dc95efa3`
`font_01_sfnt_off000061c1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61C1	19048 bytes
SHA-256: `55b46331afb2a8069782d8597c001b3c0c12b84d77f3d9baa1c75e4cada97544`

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