PDF malware analysis — malicious · 1c7ee157813fa2e3

MALICIOUS

PDF

42.8 KB Created: 2021-05-11 17:20:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: bcb13af88dccd8bc6128f5f301e4a1ec SHA-1: 955bfd28214639b9e46c9f7b129dc4a387fcbc25 SHA-256: 1c7ee157813fa2e3348ec9c4b6399549df35da4513c70d6cdfcb072679ea51c1

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains a large number of external links, many of which are disguised as links to game-related resources. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to distribute malware or lead users to phishing sites. The document body contains obfuscated text and URLs that appear to be lures for obtaining virtual currency or game items.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/kachifpro-game-hack
- http://drentklubben.se/images/robux-for-kids_GM431946152.pdf
- http://drentklubben.se/images/coin-master-free-daily-spins-and-coins_GM406889139.pdf
- http://drentklubben.se/images/how-do-you-get-robux-on-roblox_GM431946152.pdf
- http://drentklubben.se/images/how-to-get-free-robux-without-verification-2021_GM431946152.pdf
- http://drentklubben.se/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
- http://drentklubben.se/images/login-robux_GM431946152.pdf
- http://drentklubben.se/images/free-robux-codes-generator-no-verification_GM431946152.pdf
- http://drentklubben.se/images/archery-master-3d-coins-hack_GM406889139.pdf
- http://drentklubben.se/images/how-to-get-free-coins-on-coin-master_GM406889139.pdf
- http://drentklubben.se/images/coin-master-links-for-today_GM406889139.pdf
- http://drentklubben.se/images/coin-master-free-spins-facebook_GM406889139.pdf
- http://drentklubben.se/images/free-minecraft-gift-codes_GM479516143.pdf
- http://drentklubben.se/images/best-way-to-get-robux_GM431946152.pdf
- http://drentklubben.se/images/free-robux-generator-without-verification_GM431946152.pdf
- http://drentklubben.se/images/coin-master-hack-2021-no-survey_GM406889139.pdf
- http://drentklubben.se/images/earn-free-robux_GM431946152.pdf
- http://drentklubben.se/images/free-robux-redeem-codes-2021_GM431946152.pdf
- http://drentklubben.se/images/free-robux-no-email_GM431946152.pdf
- http://drentklubben.se/images/free-robux-easy-and-fast_GM431946152.pdf
- http://drentklubben.se/images/how-to-get-hacks-on-roblox_GM431946152.pdf
- https://coinmasterspinandcoin.com
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000049b3.bin` `f312b2fb4abca926881542f524e041c3ccae24dd3b6149718c045e4a67293907`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49B3	25020 bytes
`font_01_sfnt_off0000829e.bin` `ae99e9fa56977dddbc32b6703108bd53c94f7bf8e2a52f6e52c886bfe6d0f6cc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x829E	19052 bytes

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