PDF malware analysis — malicious · 1cd252f35c3c664c

MALICIOUS

PDF

33.6 KB Created: 2021-07-09 02:55:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 3ffbe559dfaf04588774bc23486ee32c SHA-1: e0003e305336f0658be41660710380c2e91d0139 SHA-256: 1cd252f35c3c664c0a737196556f83dba1253a4dc5be7d6e87d8a2e43793be77

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs and a document body that explicitly mentions game hacks and free in-game currency, indicating a lure for users seeking such content. The heuristic firings confirm the presence of a link farm and external URIs, strongly suggesting the document's purpose is to redirect users to external sites, likely for malicious downloads or further phishing. No scripts were extracted from this sample.

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.tw/app/431946152/robloxhacks-game-hack
- https://tckontrola.hr/files/coin-master-free-spins-link-2021-today_GM406889139.pdf
- https://tckontrola.hr/files/how-to-get-free-robux-on-a-computer_GM431946152.pdf
- http://tckontrola.hr/files/free-premium-roblox_GM431946152.pdf
- http://tckontrola.hr/files/robux-page_GM431946152.pdf
- http://tckontrola.hr/files/robux-free-gift-card-org-hack_GM431946152.pdf
- http://tckontrola.hr/files/how-to-get-free-robux-codes_GM431946152.pdf
- https://tckontrola.hr/files/free-spins-from-coin-master_GM406889139.pdf
- http://tckontrola.hr/files/free-robux-no-human-verification-2021_GM431946152.pdf
- http://tckontrola.hr/files/coin-master-free-coins-link_GM406889139.pdf
- http://tckontrola.hr/files/roblox-rocitizens-codes-for-free-items_GM431946152.pdf
- http://tckontrola.hr/files/free-robux-glitch-2021_GM431946152.pdf
- https://tckontrola.hr/files/how-to-download-minecraft-hacks_GM479516143.pdf
- https://tckontrola.hr/files/minecraft-windows-10-edition-free_GM479516143.pdf
- https://tckontrola.hr/files/how-to-get-free-robux-without-downloading-anything_GM431946152.pdf
- http://tckontrola.hr/files/hack-coin-master-2021_GM406889139.pdf
- http://tckontrola.hr/files/how-to-get-free-spins-for-coin-master_GM406889139.pdf
- https://tckontrola.hr/files/coin-master-map_GM406889139.pdf
- http://tckontrola.hr/files/instant-free-spins-coin-master_GM406889139.pdf
- https://tckontrola.hr/files/robux-generators-that-actually-work_GM431946152.pdf
- https://tckontrola.hr/files/free-roblox-clothes-for-your-avatar_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_off00002e82.bin` `bae5d4cbfeef14632ee6d97c201ac604ae5fb5b64c65c117c631fcc7155cf227`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E82	21916 bytes
`font_01_sfnt_off00005ec0.bin` `2ccea82525463c59d3ef013baba30ec334edef503592fdffe768c3dcf14999d8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EC0	18820 bytes

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