PDF malware analysis — malicious · fc9e25bf5236f85f

MALICIOUS

PDF

45.2 KB Created: 2021-05-17 10:47:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 97efdd1efce35b45dda08bc09e629bd1 SHA-1: 7ca0247b5b6bed61ddd40567fc0acbce59e6dba1 SHA-256: fc9e25bf5236f85fe49bfebe2b52003d107921435da497d5e3a7f2e5749f05ca

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links to external websites that appear to be part of a link farm, designed to lure users into downloading files. The document body and extracted URLs suggest a scam related to free in-game items for popular games, likely leading to malware or further phishing attempts. The ML classifier strongly indicated maliciousness, supporting the assessment of a malicious lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9621

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/431946152/how-to-get-free-hair-in-roblox-game-hack
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/roblox-free-robux-generator_GM431946152.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/bit-ly-coin-master-hack_GM406889139.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-spins-coin-master-cheat_GM406889139.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-robux-generator-for-kids_GM431946152.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-spin-ml-link_GM406889139.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-links-for-today_GM406889139.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/robux-hack-no-verification_GM431946152.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-spins-coin-master-links-2021_GM406889139.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-robux-hack-no-human-verification_GM431946152.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/daily-free-spins-coin-master-2021_GM406889139.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/get-free-spins-on-coin-master_GM406889139.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-coins-on-coin-master_GM406889139.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/how-to-get-free-shirts-on-roblox_GM431946152.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/get-free-spins-on-coin-master-2021_GM406889139.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-free-chip_GM406889139.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/where-to-get-free-robux_GM431946152.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/how-to-get-free-coins-in-coin-master-game_GM406889139.pdf
- http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-hack-generator-tool_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004b08.bin` `b4e3b5cb9bc9c2033d226751099621de00d6645ce7314fba72c9c870c30335de`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4B08	24388 bytes
`font_01_sfnt_off0000830a.bin` `eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x830A	2940 bytes
`font_02_sfnt_off00008d19.bin` `d67237273ed03f92aa8c6c4764a8757174e90409c0462d06d9c122592efde19a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D19	18564 bytes

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