PDF malware analysis — malicious · 8b8e2e99081d5463

MALICIOUS

PDF

33.8 KB Created: 2020-08-30 16:47:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9b0587d49b0aa239265e84ca1f2bd1eb SHA-1: 6b6e02cebb71fe1a1367025fc1d4fc14900ef884 SHA-256: 8b8e2e99081d54632ab36577466ddd7b86f348d0078876319badd6bb5ace40e8

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'ttraff.com'. This indicates a likely phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the same redirector URL and references to 'Haynes repair manual cadillac cts', suggesting a lure to entice users to click the malicious link. The presence of a large number of external PDF links further supports the 'link farm' attack pattern.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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.
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.com/wix?keyword=haynes+repair+manual+cadillac+cts
- https://static.usrfiles.com/ugd/3826db_50dc47f9e0c84ed988603abf5b97d9c2.pdf
- https://static.usrfiles.com/ugd/735189_d36d19e6749c447880720f7aaa0f4f4a.pdf
- https://static.usrfiles.com/ugd/fbccce_c23c143e018446f5ae36bfcc2d3d1a51.pdf
- https://static.usrfiles.com/ugd/3e87bf_2726cbe862b143d0b0ac5ed05c0f6769.pdf
- https://static.usrfiles.com/ugd/9b5f63_4e3481d6e6f24a4bb2595faa45b9349d.pdf
- https://static.usrfiles.com/ugd/b8c837_65a89d287a984481afab65a9a83a6242.pdf
- https://cdn.shopify.com/s/files/1/0431/1810/0637/files/84347829108.pdf
- https://cdn.shopify.com/s/files/1/0454/8227/9062/files/muzepazivumomivox.pdf
- https://cdn.shopify.com/s/files/1/0433/5996/1237/files/kofisubov.pdf
- https://cdn.shopify.com/s/files/1/0430/6668/7642/files/pmbok_6_agile.pdf
- https://cdn.shopify.com/s/files/1/0428/1024/5279/files/international_financial_management_11th_edition.pdf
- https://static.usrfiles.com/ugd/f1780b_4cf499c948eb4d4d86b0dd983c66d981.pdf
- https://static.usrfiles.com/ugd/ea2f88_6d62f104d04445bb982489a05b1553ee.pdf
- https://static.usrfiles.com/ugd/b8c837_694db9700031449888a3771616668c3d.pdf
- https://static.usrfiles.com/ugd/0049ca_cfc4210d6147425b87afc5f14a7432d0.pdf
- https://static.usrfiles.com/ugd/bf650e_30bbb5bb036b4a3ba89c3439e451805d.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_off00004858.bin` `a247642355c82c99369455965074d9d1a67af1b3d5fde9d8988601dab86b5252`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4858	5280 bytes
`font_01_sfnt_off00005a30.bin` `a0e76e34ffb92879020c37b9412ba97c5ee1a6274654ae6d6102000086a1ec30`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A30	9400 bytes

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