PDF malware analysis — malicious · d1e4cfb592b17d00

MALICIOUS

PDF

42.2 KB Created: 2021-05-15 17:10:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: b44cd9b1f91d8a840d408b44b8edcf61 SHA-1: 9ef265eee93279388884a6b21baac6a10be19abe SHA-256: d1e4cfb592b17d007859049c978c97c7784e33fcd659d981ef7d3dd584d0d0dc

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/get-more-free-spins-on-coin-master-game-hack PDF link annotation
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-free_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/can-you-earn-robux_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/free-spin-online-tool-coin-master_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/free-robux-rewards_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/hacks-master-coin_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-hack-tool-exe_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/roblox-hack-download_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today_GM406889139.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_off00004bdc.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BDC	24396 bytes
SHA-256: `417400c59f124d94cd9114cde925e701b3ad6ba1cc43272272f27dc91f531a64`
`font_01_sfnt_off000083b6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83B6	17884 bytes
SHA-256: `bb9e4fd9c75f82cb5aaa6c3ce0f9987e8b81c815dbd48b4f27d4577a82c32b67`

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