PDF malware analysis — malicious · fb3f5367d22231ae

MALICIOUS

PDF

49.3 KB Created: 2020-09-11 20:48:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a0ddbcd93f952fecb9039178c2a7279f SHA-1: 2334c9a4d1de845f6a629cbfcd7636f1d77b8ea9 SHA-256: fb3f5367d22231ae7844e3e3819356408bbfeba98e4efe9b3d3954cca0d89428

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm designed to redirect users to malicious infrastructure, as indicated by the PDF_SEO_LINK_FARM and PDF_MALICIOUS_REDIRECTOR_LINK heuristics. The primary malicious URL identified is https://ttraff.club/wix?keyword=spiderman+3+game+free++highly+compressed, which is likely part of a lure to download unwanted content. The ML classifier also strongly flagged this PDF as malicious.

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.club/wix?keyword=spiderman+3+game+free++highly+compressed
- https://static.usrfiles.com/ugd/0f5b72_e17cc70e5d264bcd8b3fa0e2b82bad9b.pdf
- https://static.usrfiles.com/ugd/12daa7_680224df422c4f1e884745bfee96710a.pdf
- https://static.usrfiles.com/ugd/fd7405_1283e02c08a84e25a45c2526f6369bb9.pdf
- https://static.usrfiles.com/ugd/2274a7_9ec5533060884a3595a7257db221ce88.pdf
- https://static.usrfiles.com/ugd/3fc21f_a584a862ea1148439bc7d975146d06bb.pdf
- https://static.usrfiles.com/ugd/a771bd_0504fa42f6d54c7ca516631f6a9c36af.pdf
- https://static.usrfiles.com/ugd/108936_00fac25936f44aaf99a56392dab0eb4e.pdf
- https://static.usrfiles.com/ugd/7c3584_a8dc72e6085d44fabdbc390d0efadc4c.pdf
- https://static.usrfiles.com/ugd/8cbfce_ca492a2bdbe641b38c469d7f90643b7e.pdf
- https://static.usrfiles.com/ugd/97634b_d16d594a8d54436891f639a8805d69fe.pdf
- https://cdn.shopify.com/s/files/1/0449/5418/9983/files/80861232868.pdf
- https://cdn.shopify.com/s/files/1/0431/2439/2087/files/napaxapulobanezasutejipim.pdf
- https://static.usrfiles.com/ugd/76b6de_0c6618c74eaa4bb39c0d5d305c072364.pdf
- https://static.usrfiles.com/ugd/cec570_65f70c558d1f48f0b037d30550bd3841.pdf
- https://static.usrfiles.com/ugd/b13fd1_498875105bcf4a0b9068977b48161907.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006290.bin` `fbfc543cf9f935546e6abb676719a444dcebe2bba23ea17f9ad6740bcaf02103`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6290	5936 bytes
`font_01_sfnt_off000076a6.bin` `ce7c93f85eb10c0171258a4f83722a9746d92eab4d6f34d698067902a1a4974e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x76A6	14128 bytes
`font_02_sfnt_off0000a313.bin` `b302cc8f5f09e2795de20733a7353734804733c4090a8051bb0a1a62ee9fdce2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA313	16076 bytes

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