PDF malware analysis — malicious · 8ed40a5c47908085

MALICIOUS

PDF

44.1 KB Created: 2021-05-15 06:30:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: b639e242343ae747dbe5bb77e5380101 SHA-1: a8c416fe82429b2662415a476b83b9bd4de1c8d8 SHA-256: 8ed40a5c47908085f6b09279393e552ccfd53aa7935ca971b4479ce5cb7e636b

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, many of which are SEO-optimized and point to game-related cheats and hacks. The ML classifier strongly flagged this PDF as malicious. The presence of embedded URLs and the heuristic indicating a link farm suggest the document is designed to redirect users to potentially harmful websites or facilitate the download of further malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9648

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 https://netcdn.xyz/app/406889139/hacks-for-coin-master-game-hack
- http://rosadent.com/images/how-to-get-free-robux-codes_GM431946152.pdf
- http://rosadent.com/images/coin-master-free-spins-link-2021-hack_GM406889139.pdf
- http://rosadent.com/images/coin-master-free-spin-codes_GM406889139.pdf
- http://rosadent.com/images/how-to-make-a-minecraft-client_GM479516143.pdf
- http://rosadent.com/images/roblox-free-exploits_GM431946152.pdf
- http://rosadent.com/images/coin-master-hack-unlimited-spins_GM406889139.pdf
- http://rosadent.com/images/free-robux-no-survey_GM431946152.pdf
- http://rosadent.com/images/can-u-get-free-robux_GM431946152.pdf
- http://rosadent.com/images/how-to-downgrade-minecraft-pe_GM479516143.pdf
- http://rosadent.com/images/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdf
- http://rosadent.com/images/real-free-robux-codes_GM431946152.pdf
- http://rosadent.com/images/coin-master-hack-2021-iphone_GM406889139.pdf
- http://rosadent.com/images/hack-coin-master-apk-32-download_GM406889139.pdf
- http://rosadent.com/images/original-roblox_GM431946152.pdf
- http://rosadent.com/images/minecraft-pe-apk-free-download_GM479516143.pdf
- http://rosadent.com/images/how-to-hack-people-on-roblox_GM431946152.pdf
- http://rosadent.com/images/simplysarc_GM479516143.pdf
- http://rosadent.com/images/free-spins-coin-master-app_GM406889139.pdf
- http://rosadent.com/images/ultimate-free-spins-coin-master_GM406889139.pdf
- http://rosadent.com/images/oprewards-free-robux_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off0000481d.bin` `675f780ac0c394bd3d004d36e68ba4eecd3de93c9241c3012be2efd57a5c9f2a`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x481D	24740 bytes
`font_01_sfnt_off00008144.bin` `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8144	2840 bytes
`font_02_sfnt_off00008af6.bin` `aa3394458939619806496cbc198b043db21b7abc6a7e758b364f4c9fc0519879`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8AF6	17880 bytes

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