PDF malware analysis — malicious · bfe3cf0c4030108a

MALICIOUS

PDF

41.3 KB Created: 2021-05-12 07:03:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 5d4bd050e037dddf1041813cf01f2f28 SHA-1: f07bc98db07043c7e5da0ad93ba3fb47cd41e969 SHA-256: bfe3cf0c4030108ad3795dcdb9acf0fc3c7133a3ab9b7e6207fcaa96745cbde2

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links and a link farm, all pointing to websites offering free in-game items or accounts, a common lure for scams and phishing. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were directly extracted, the PDF structure itself facilitates the redirection to malicious URLs.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/how-to-get-free-robux-youtube-game-hack
- https://itv-grabungen.de/images/roblox-premium-free_GM431946152.pdf
- https://itv-grabungen.de/images/free-spin-link-coin-master_GM406889139.pdf
- https://itv-grabungen.de/images/free-robux-that-actually-works_GM431946152.pdf
- https://itv-grabungen.de/images/free-minecraft-account-and-password-generator_GM479516143.pdf
- https://itv-grabungen.de/images/coin-master-free-link_GM406889139.pdf
- https://itv-grabungen.de/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdf
- https://itv-grabungen.de/images/coin-master-hacks-no-surveys_GM406889139.pdf
- https://itv-grabungen.de/images/avatar-the-last-airbender-roblox_GM431946152.pdf
- https://itv-grabungen.de/images/coin-master-game-free_GM406889139.pdf
- https://itv-grabungen.de/images/free-minecraft-java-edition-account_GM479516143.pdf
- https://itv-grabungen.de/images/hack-xp-net-coin-master_GM406889139.pdf
- https://itv-grabungen.de/images/free-spin-link-of-coin-master_GM406889139.pdf
- https://itv-grabungen.de/images/coin-master-codes_GM406889139.pdf
- https://itv-grabungen.de/images/hack-spin-coin-master-2021_GM406889139.pdf
- https://itv-grabungen.de/images/roblox-piano-hack_GM431946152.pdf
- https://itv-grabungen.de/images/how-to-hack-roblox-accounts-2021_GM431946152.pdf
- https://itv-grabungen.de/images/coin-master-hack-spins-apk_GM406889139.pdf
- https://itv-grabungen.de/images/free-spin-and-coin-blogspot_GM406889139.pdf
- https://itv-grabungen.de/images/blogspot-coin-master-free-spins_GM406889139.pdf
- https://itv-grabungen.de/images/coin-master-hacks-for-spins_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000047ab.bin` `a372142fea55ef91f2ba93c71ef42465d8e9afeaaa5f730b7f1a2a72bfb12b15`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x47AB	24028 bytes
`font_01_sfnt_off00007e3a.bin` `c8869677d4d84c4518e8410e1128de6ae04a76f8db213e07b668dd1668cda2fe`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E3A	18444 bytes

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