PDF malware analysis — malicious · 91209b62e77a6041

MALICIOUS

PDF

35.6 KB Created: 2021-06-23 09:25:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 681bfa534c0d1dc1f64a6c4db01f230d SHA-1: e3a48d9f599cc82b012c16a5701e868d9ad812c3 SHA-256: 91209b62e77a6041d24a0e827771a91ac9311ff5921da82a38ae91f4e71bba25

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links and a document body that promotes free in-game items and currency for popular games. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and 'SE_DOWNLOAD_BUTTON' suggests a lure to click. The ML classifier strongly flagged this PDF as malicious, indicating it likely leads to a phishing site or a download of further malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/how-to-make-a-custom-rthro-for-free-roblox-game-hack
- https://www.modestuae.com/uploaded_files/userfiles/files/free-roblox-gift-card-codes-2021-unused_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/how-to-get-free-robux-items-on-roblox_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/roblox-cheat-engine-murder-mystery-2_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/can-you-make-a-minecraft-server-for-free_GM479516143.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/hack-robux-no-inspect_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/get-free-spins-coin-master_GM406889139.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/minecraft-windows-10-hack-client-2021_GM479516143.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/roblox-free-no-download_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/roblox-free-suit_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/working-robux-hack-without-a-human-verification_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/free-minecraft-skin-maker_GM479516143.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-daily-spin-free_GM406889139.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/buy-robux-for-free-2021-april_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/free-spin-link-for-coin-master-game_GM406889139.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/pubg-uc-price-in-pakistan_GM1330123889.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/roblox-hack-me-robux_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-free-coins-and-spins-hack_GM406889139.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-hack-spins-app_GM406889139.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/best-level-7-hacks-roblox_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000032ab.bin` `0d2f49e0d2388c8177672914ca1aabf84b2d3cd58e221cce217a9f334c052b69`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32AB	22252 bytes
`font_01_sfnt_off000063e4.bin` `ad7cf06fac36837325099ab2ffebb70a466f3448f81c0af54cc0e41803a13ca6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63E4	19848 bytes

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