PDF malware analysis — malicious · ac4589dccb90719f

MALICIOUS

PDF

41.1 KB Created: 2021-05-13 15:16:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 0972b2e64bf437c4bcf18bf44929053f SHA-1: 98d3df4a48b8b59ee4daaa885ff200b4c3024582 SHA-256: ac4589dccb90719faa8ab4b7a4f69aa9b16640f67104495ba44c4f2e0e9d8d93

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 0.9971

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/406889139/coinmaster-spin-ml-link-game-hack PDF link annotation
- https://vierabyragazze.com/upload/files/minecraft-free-download_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/roblox-imagine_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/give-me-free-robux_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-hack-download_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/easy-coin-master-hack_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-rewards_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-free-version-pc_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/oprewards-points-generator_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/are-robux-generators-safe_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/real-coin-master-hacks_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-hack-app_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/roblox-hack-tool_GM431946152.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-link-for-spins_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-robux-no-verification-no-survey_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
`stream_003_off00004774.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4774	24072 bytes
SHA-256: `5542c2c7924db819e6d9583afd4ef4bdad22c2687dc2bf492df59293f26027a3`
`font_01_sfnt_off00007e53.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E53	18224 bytes
SHA-256: `30491747f7744f8dfec2798669d35ae0fb28e0f479cedcbcd08837e4021632c7`

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