PDF malware analysis — malicious · da21207a23302b05

MALICIOUS

PDF

35.4 KB Created: 2021-07-05 00:07:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 925854250a396c90fc5628d247f1322d SHA-1: 5983f535fb7ef4bdb72639c5d8030aecc323e698 SHA-256: da21207a23302b05adf642542ec583ef8636405725c95a387a6dba364d0fe33b

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded URLs and a document body that lures users with promises of free in-game currency and accounts. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting a link farm or redirection mechanism. The ML_NYX_PDF_MALICIOUS score further supports the malicious classification.

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.tw/app/431946152/free-roblox-accounts-with-robux-that-work-not-banned-game-hack
- https://www.deg91.com/upload/files/free-roblox-clothes-no-gltich_GM431946152.pdf
- https://www.deg91.com/upload/files/how-to-get-free-robux-for-real_GM431946152.pdf
- https://www.deg91.com/upload/files/free-coins-on-coin-master_GM406889139.pdf
- https://www.deg91.com/upload/files/how-to-get-free-wood-in-tradelands-roblox_GM431946152.pdf
- https://www.deg91.com/upload/files/pokemon-go-free-coins-ios_GM1094591345.pdf
- https://www.deg91.com/upload/files/how-to-get-free-robux-on-phone_GM431946152.pdf
- https://www.deg91.com/upload/files/hack-spin-coin-master_GM406889139.pdf
- https://www.deg91.com/upload/files/minecraft-free-download-unblocked_GM479516143.pdf
- https://www.deg91.com/upload/files/dominous-roblox-hack_GM431946152.pdf
- https://www.deg91.com/upload/files/simplysarc_GM479516143.pdf
- https://www.deg91.com/upload/files/minecraft-free-download-android-apk-014-0_GM479516143.pdf
- https://www.deg91.com/upload/files/how-to-get-free-202100-robux_GM431946152.pdf
- https://www.deg91.com/upload/files/halo-roblox-royal-high-hack_GM431946152.pdf
- https://www.deg91.com/upload/files/toolbox-for-mcpe_GM479516143.pdf
- https://www.deg91.com/upload/files/de-roblox-hack-p_GM431946152.pdf
- https://www.deg91.com/upload/files/roblox-hack-client-pc-download_GM431946152.pdf
- https://www.deg91.com/upload/files/roblox-zombie-rush-hack-script_GM431946152.pdf
- https://www.deg91.com/upload/files/coin-master-free-coins-today_GM406889139.pdf
- https://www.deg91.com/upload/files/roblox-hack-rbx-june2021_GM431946152.pdf
- https://www.deg91.com/upload/files/how-do-you-get-free-robux-on-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_off00002fb7.bin` `3c27ad52df658810958ae38d82b292e8ae5dc9b17b001480eb33a621df8e365e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FB7	22980 bytes
`font_01_sfnt_off0000635a.bin` `e7aa0a474f873a6e751f5083720d35e515444fa97241f03d9058db0775c81672`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x635A	19720 bytes

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