PDF malware analysis — malicious · 33553e4bfdb9d486

MALICIOUS

PDF

34.9 KB Created: 2021-06-30 00:49:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: b61e83487538a31f92a6ec43556fa5f5 SHA-1: c87546272462382e60ce8eb7fc6c41c1cb4ea499 SHA-256: 33553e4bfdb9d486af8e243c0cb88cc5f83b106b3be2258149dcef207bbb7d70

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links and references to game hacks and cheats, suggesting a lure for users to download potentially malicious content. The ML classifier strongly indicated maliciousness, and the presence of a link farm heuristic further supports this. The document body itself contains URLs pointing to game-related hacks, reinforcing the phishing pretext.

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.co/app/431946152/roblox-how-to-fly-hack-game-hack
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-robux-no-downloading-apps_GM431946152.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/2021-free-spins-coin-master_GM406889139.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/coin-master-hack-coins_GM406889139.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/easy-how-to-get-free-robux_GM431946152.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/blonde-action-ponytail-roblox-free_GM431946152.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-roblox-promo-code_GM431946152.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/coin-master-game-hack-app_GM406889139.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-jurassic-park-roblox-backpack_GM431946152.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/coin-master-hack-pc-download_GM406889139.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/minecraft-free-download-mac-full-version-2021_GM479516143.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/coin-master-hacks-for-iphone_GM406889139.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/hacks-for-the-legendary-sword-rpg-roblox_GM431946152.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/coin-master-heaven-free-spins-today_GM406889139.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/roblox-hack-players-download_GM431946152.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/how-to-hack-roblox-jailbreak-on-mobile_GM431946152.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/get-free-robuxg_GM431946152.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/how-to-hack-roblox-jailbreak-on-computer_GM431946152.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-spins-coin-master-facebook_GM406889139.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-robux-images_GM431946152.pdf
- https://www.failtesolar.com/uploaded_files/userfiles/files/dungeon-quest-roblox-hack_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_off00002fcd.bin` `fb63a0bf717d60eabab14c9ff3513cfff2c940c4c4cf2a3fa98b5ee4c37cd563`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FCD	22856 bytes
`font_01_sfnt_off00006305.bin` `613887f9b79eaf7f052edf31ae6c6745fc000a9264d8a434ae68ed42be3fe687`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6305	19164 bytes

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