PDF malware analysis — malicious · 714425a6df5647a9

MALICIOUS

PDF

33.7 KB Created: 2021-07-03 18:37:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 0acae51837eeeed1d71fc2512731f8cd SHA-1: 22d792fd328fbfb59e7096b839c90b6d8fc92ed1 SHA-256: 714425a6df5647a9dea8c870327296e5ebf31895568e06e12ce0ec4035c663bd

142 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a launch action and numerous embedded URLs, many of which are linked to game hacks and cheats, indicating a lure for users to download malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm suggests an attempt to distribute further malicious PDFs or redirect users to compromised sites. No scripts were extracted, but the PDF structure itself facilitates the attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

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.
Launch action high PDF_LAUNCH

PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
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/479516143/minecraft-name-tag-hacks-game-hack
- https://abellamoveis.com.br/ckfinder/userfiles/files/hack-coin-master-for-free_GM406889139.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/free-roblox-gift-card-codes-2021-unused_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/get-free-spins-in-coin-master_GM406889139.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/free-roblox-accounts-with-robux_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/coin-master-hack-no-root_GM406889139.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/password-free-roblox-accounts_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/have-i-been-hacked-on-roblox_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/roblox-ro-ghoul-hack_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/rbx-place-free-robux_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/hey-google-how-do-you-get-free-robux_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/stop-roblox-from-shutting-down-cheat-engine_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/roblox-hack-engine-download_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/how-to-catch-a-hacker-on-roblox_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/cheat-roblox-aimbot-arsenal_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/roblox-hack-codes_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/coin-master-free-spins-april-2021_GM406889139.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/launch-hack-roblox_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/roblox-blue-tshirt-free_GM431946152.pdf
- https://abellamoveis.com.br/ckfinder/userfiles/files/free-ways-to-get-robux_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_off000030ef.bin` `8c381aca815ec41ef341c7b45fe4a0dc4f1c8485e37b2dac6c70f1ea0cc8a38d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30EF	22028 bytes
`font_01_sfnt_off00006151.bin` `eb7ed4260d6d64c3cd9f3242d6af3157cea31df7eff6e4be90ec8e6c005c47d1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6151	18288 bytes

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