PDF malware analysis — malicious · d7df86382ec49be2

MALICIOUS

PDF

35.8 KB Created: 2021-07-07 00:11:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 96f97fe059ffd36e2684a3b9ef9ea056 SHA-1: ab15c6b26e12fd35558eb2bba478821a4ca0bfde SHA-256: d7df86382ec49be23134b76cc6116acdef0058c4168907bb1a313f844ac3c8f3

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.tw/app/431946152/apps-that-give-you-free-robux-game-hack PDF link annotation
- https://www.mierepair.com/uploaded_files/userfiles/files/free-robux-obby-2021_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/best-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/best-free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/free-robux-games-that-work_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/free-robux-copy-paste_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/how-can-i-get-a-roblox-hack-gui-to-work_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/template-roblox-shirt-free-shipping_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/free-unlimited-robux-hack-working-2021_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/free-robux-working-2021_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021-december_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/roblox-robux-hack-2021-download_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/free-robux-hack-us_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_off000032ab.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32AB	22732 bytes
SHA-256: `e3aae004fc5303af97879449c849156755658b9920ae2972bbbb8c222cb3d376`
`font_01_sfnt_off000065a4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65A4	19560 bytes
SHA-256: `44687920bbab424739eb00f0c10a6a4a3701389ccd8aaf990bb054a3fc46e25a`

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