PDF malware analysis — malicious · 5ef650f2ff2eae45

MALICIOUS

PDF

34.4 KB Created: 2021-06-18 13:42:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: e10ea20818d8eb2571bcf661f2faf9aa SHA-1: 52d6cc0284fe12ac1374bb2a9e018f66952c2bd3 SHA-256: 5ef650f2ff2eae45bff154f61373dae25bf01b68d693c1cc2764b26771ea9bc8

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous embedded links and a prominent call-to-action related to obtaining free Robux or game hacks. The document body and extracted URLs suggest a lure for users to download or access potentially malicious content. The ML classifier and PDF link farm heuristic strongly indicate malicious intent.

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/win-robux-free-game-hack PDF link annotation
- https://tjiko.de/wp-content/uploads/fsqm-files/get-free-robux-without-downloading-games-and-without-paying_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-top-get-free-robux-without-verify_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/hack-para-booga-booga-roblox_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-to-get-tons-of-robux-for-free_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-ban-script-hack_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-cool-roblox-exploits_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-cheat-robux-gratuit-fr_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-today-2021_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-roblox-names-and-passwords_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/devil-roblox-hack_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-hack-robux-hack_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/hacks-client-for-roblox-wild-revolvers_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/bad-business-roblox-cheats_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-hack-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-building-simulator-hack_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-admin-hack-no-download_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-hack-2021-get-free-robux-for-android-and-ios_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-hack-to-get-robux-2021_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00002ffc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FFC	22548 bytes
SHA-256: `291089c2dd1dabb38b3cd1eefe4ca187328a472be97a9233ff5f64692e01f25c`
`font_01_sfnt_off00006233.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6233	18848 bytes
SHA-256: `8a5fcf84877865411c470f2131d2a1a7e51d2d0131a5fdf817a60ebcddc70f4f`

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