PDF malware analysis — malicious · f9e627b66c6e9ae6

MALICIOUS

PDF

48.6 KB Created: 2020-08-29 21:12:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: fef5daeaab15df24c5f4d5f6a3e960f1 SHA-1: ca54d353e9a4c5a3282eb1905fcfdccf5ef643c0 SHA-256: f9e627b66c6e9ae6e304ed1b3ff9d14d1fb83387806050733255c16b89d8f85a

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was identified as malicious due to its inclusion of a large number of external links, a technique often used for SEO manipulation or to distribute further malicious content. One of the primary links, 'https://ttraff.ru/wix?keyword=medida+de+capacidad+para+aridos', is flagged as a malicious redirector. The document body contains garbled text and references to wkhtmltopdf, suggesting it may have been generated programmatically to host these links.

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.ru/wix?keyword=medida+de+capacidad+para+aridos
- https://cdn.shopify.com/s/files/1/0430/6803/1143/files/nesizeluxewezevijojaxuw.pdf
- https://cdn.shopify.com/s/files/1/0435/5388/2273/files/90399620904.pdf
- https://cdn.shopify.com/s/files/1/0430/9529/4105/files/verset_biblique_d_encouragement.pdf
- https://cdn.shopify.com/s/files/1/0440/2338/2166/files/autobiographical_elements_in_the_novel_mill_on_the_floss.pdf
- https://static.usrfiles.com/ugd/b8c837_1068a86272d44ee79c5c33a8e5e7a9ab.pdf
- https://static.usrfiles.com/ugd/b8c837_e285629aa57b4869b8e57c127a89b030.pdf
- https://static.usrfiles.com/ugd/b8c837_f5dc59ba1eb84f729cf8d39e0db1e8c6.pdf
- https://static.usrfiles.com/ugd/b8c837_bdc34efc87aa42328f72b61516303866.pdf
- https://static.usrfiles.com/ugd/b8c837_271090167dc04bebafb0337794bf4f64.pdf
- https://static.usrfiles.com/ugd/b8c837_66738736f2ad4c5b98e62a0b1133a496.pdf
- https://static.usrfiles.com/ugd/0511f5_33b8c1ccb9fd4650a0524ab3809bc397.pdf
- https://static.usrfiles.com/ugd/d7ba0f_406f7e2f8cf64ddabfdbe6a4d6f10f14.pdf
- https://static.usrfiles.com/ugd/b8c837_607cf5f478734dbaa885c6cc1aadfda5.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005cc3.bin` `fd6f2517fff4ff27dc7459021f9f9dfdabcac3f291718b14fe5263e524e5d011`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5CC3	4644 bytes
`font_01_sfnt_off00006c8b.bin` `f19b2d82a311f3d778a9d5e152e6cd95c2c66cc17da9158c557671e9fceb5e0b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C8B	11396 bytes
`font_02_sfnt_off000091fb.bin` `967d89e51290aceb8fea09c2f9e0c707663cecf1a9b826b2128538f448fdbc28`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91FB	16164 bytes
`font_03_sfnt_off0000a714.bin` `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA714	4324 bytes

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