PDF malware analysis — malicious · 90ab294c9951ea5e

MALICIOUS

PDF

45.3 KB Created: 2021-05-19 17:46:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 0e51cfb6b1e406fa1afa35c02a0dbabc SHA-1: 674206bd8793ee1fc49567213501256c6192bde9 SHA-256: 90ab294c9951ea5eba16f2233577ddbced46384e33b808c912cd235d69dfab4e

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 0.9507

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 https://netcdn.xyz/app/431946152/roblox-arsenal-hack-script-pastebin-game-hack PDF link annotation
- https://vierabyragazze.com/upload/files/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/which-pubg-uc-is-best_GM1330123889.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-admin-roblox_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-free-online_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/pokemon-go-free-pokecoins_GM1094591345.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-roblox-shirts-templates_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-hacks-for-gold-cards_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-robux-place_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-robux-site_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/get-robux-today_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004870.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4870	24376 bytes
SHA-256: `c28aa9ad12c8a4d5f0ba2913625819a8df658b1e0dd7da61907fc5c66355090d`
`font_01_sfnt_off0000809d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x809D	3884 bytes
SHA-256: `40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf`
`font_02_sfnt_off00008d45.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D45	18736 bytes
SHA-256: `7de8619ef554dfe1f2192c4aca90399aa0815846f6a8f71df992d0e349aeb038`

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