PDF malware analysis — malicious · 31ba3e3d5656b40c

MALICIOUS

PDF

44.5 KB Created: 2020-08-29 22:20:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 89f234707b59996a3c3a7ba7a0a186d2 SHA-1: c41d8ed7864bc7549767d8c57d4c5928a5671042 SHA-256: 31ba3e3d5656b40ce2d2997985657c276747c27f0d7ee510312239e72ea2a0f7

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, https://ttraff.cc/wix?keyword=exercices+propositions+subordonn%25C3%25A9es+relatives+et+conjonctives+5%25C3%25A8me, points to a known malicious redirector. This suggests the document is designed to lure users to malicious sites, likely for phishing or malware distribution, by obscuring the true destination through multiple redirects.

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.cc/wix?keyword=exercices+propositions+subordonn%25C3%25A9es+relatives+et+conjonctives+5%25C3%25A8me
- https://cdn.shopify.com/s/files/1/0430/2353/2195/files/ad_d_1st_edition_character_sheet.pdf
- https://cdn.shopify.com/s/files/1/0432/0270/7616/files/atoms_and_elements.pdf
- https://cdn.shopify.com/s/files/1/0433/2571/8678/files/blood_groups_compatibility.pdf
- https://cdn.shopify.com/s/files/1/0432/7650/1158/files/28618914518.pdf
- https://cdn.shopify.com/s/files/1/0428/5153/2963/files/11092083818.pdf
- https://static.usrfiles.com/ugd/b8c837_5bf50ae1afd24b6fb38718fd7279e402.pdf
- https://static.usrfiles.com/ugd/efb3f0_e33167ca273c4ab795682392e29b2569.pdf
- https://static.usrfiles.com/ugd/6908d7_e6b77af9116542b7a1855e6bf16e1e03.pdf
- https://cdn.shopify.com/s/files/1/0440/2606/9157/files/comparison_of_adjectives_elementary.pdf
- https://cdn.shopify.com/s/files/1/0432/1155/4980/files/paxugadelopavat.pdf
- https://static.usrfiles.com/ugd/b8c837_d78f471f79da4167b0a7e9953e87252a.pdf
- https://static.usrfiles.com/ugd/b8c837_2a7a3304c6474d6ca47f26549268ee81.pdf
- https://static.usrfiles.com/ugd/b8c837_fcbed99362e3420ea838c0c4bbed583e.pdf
- https://static.usrfiles.com/ugd/b8c837_a3fa0ae77c684d6c86a0dba9d025c331.pdf
- https://static.usrfiles.com/ugd/65b209_c070efa979a24ee787075a6e5acfaf21.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_off000059e1.bin` `c1a94791883854ec9e218e05f605f8bc8defa2f57788b2e8f447a8c868ac0d93`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x59E1	5812 bytes
`font_01_sfnt_off00006cee.bin` `7a8dd40c9329e774f462a813dfa10a1754214f631997eeffc07854baf5370d90`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6CEE	12108 bytes
`font_02_sfnt_off00009383.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9383	4324 bytes

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