PDF malware analysis — malicious · 01ac51322cbfc9d0

MALICIOUS

PDF

36.3 KB Created: 2021-06-17 16:18:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 0f6102821955148ff199d9e395be17db SHA-1: 0b268c45ef35896c024d244fb276f5eb33e808ef SHA-256: 01ac51322cbfc9d0176205a69cfc34a8fec4a88c1016d520d55c4c5952d6bb95

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains numerous embedded URLs and a document body that promotes 'free Roblox promo codes' and game hacks, indicating a lure for users to download potentially malicious content. The heuristic 'PDF_SEO_LINK_FARM' and the ML classifier strongly suggest malicious intent. The presence of many external links points towards a phishing or scam attempt.

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/free-roblox-promo-codes-march-21-2021-game-hack PDF link annotation
- https://tjiko.de/wp-content/uploads/fsqm-files/2021-roblox-free-game_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/for-roblox-launch-for-free-vip_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-to-get-cheat-scripts-in-roblox_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/hack-dragon-ball-rage-roblox_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-spins-on-coin-master-2021_GM406889139.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/boostgamesnet-roblox-free_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-to-hack-on-roblox-on-pc_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-to-get-dominus-empyreus-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-can-i-get-roblox-for-free_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-to-get-free-robux-changer_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-hacks-get-free-robux_GM431946152.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/free-robux-today-2021_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/download-roblox-pc-windows-10-free_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-generator-hack-2021_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/ho-wto-hack-roblox_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-jail-break_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_off000033c2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x33C2	22964 bytes
SHA-256: `0dee49c213aaa174bd948ffedd6d0076e718fa16d5dd0124bf59902b0d69b2f8`
`font_01_sfnt_off00006701.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6701	19816 bytes
SHA-256: `56271b7fc3af68709282797b16276eaaa8a913763d931c15dee00aa25a3d3fd4`

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