PDF malware analysis — malicious · 8f02e56c18524c0c

MALICIOUS

PDF

34.9 KB Created: 2020-08-30 22:00:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: cff84fde5dbb10d5e86af33e9fd6a1d9 SHA-1: 612fdfb1bc5f2007ec0b353162fe08d413a8b6ef SHA-256: 8f02e56c18524c0c0e4275fda6852dfef218edda53af8bd4fc51aa8b93fe9249

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious due to its structure containing a large number of external links, a technique often used for SEO poisoning or to distribute malicious content. One of the embedded URLs, 'https://ttraff.cc/wix?keyword=subnautica+corail+plat', is flagged as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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://ttraff.cc/wix?keyword=subnautica+corail+plat
- https://cdn.shopify.com/s/files/1/0438/3404/8669/files/law_of_sines_and_cosines_applications_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0431/5650/4744/files/71984213400.pdf
- https://cdn.shopify.com/s/files/1/0430/5145/0519/files/nageva.pdf
- https://cdn.shopify.com/s/files/1/0432/1227/5870/files/20905288933.pdf
- https://static.usrfiles.com/ugd/badafb_c6900691407144869de456bdd57c8fc9.pdf
- https://static.usrfiles.com/ugd/804ff6_e32a2023cc0e4b8185b9edcae3d05dcf.pdf
- https://static.usrfiles.com/ugd/b8c837_caba378897434a4e9a4c7be3dabc2fbf.pdf
- https://static.usrfiles.com/ugd/b8c837_6401ab7b9a0b4dbfb2b6b0b224b68a52.pdf
- https://static.usrfiles.com/ugd/b8c837_1f625cbcf4794ec5883a050d4165a7bc.pdf
- https://static.usrfiles.com/ugd/accd1f_b2ac0336d35a4249a15b566192b48fe3.pdf
- https://static.usrfiles.com/ugd/2e79a6_29823255f54649fc881199d5e5977a1c.pdf
- https://static.usrfiles.com/ugd/b8c837_e95555a83f284e1885e72a1b35a6328a.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004b5f.bin` `09eadd8076ff3ee0ffe28912149d8f8bf128d6e04e8796945e31661a37d16ffa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4B5F	4992 bytes
`font_01_sfnt_off00005c5a.bin` `0798879f9cc3e6fd4dfecbad133c4824ac52563260c5b15d3b4c9d44af024319`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C5A	10252 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.