PDF malware analysis — malicious · 26133ff18f3d7c9d

MALICIOUS

PDF

43.9 KB Created: 2020-08-30 22:49:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6e050e79a8fbc3b9172dfb531482bc7e SHA-1: 2105a90cfcb1e3499bde4c59012c5fdd844c32a4 SHA-256: 26133ff18f3d7c9d8cf3285b015fd3e24c328f3a9048282f74e56dc1f4b434f9

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, contains text related to 'Direito constitucional esquematizado pedro lenza 2017' and a URL that matches the malicious redirector. This suggests the PDF is designed to trick users into clicking the link, leading them to a malicious site. The presence of numerous external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content.

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=direito+constitucional+esquematizado+pedro+lenza+2017
- https://static.usrfiles.com/ugd/cac9e4_b56d381a2b8c4f9ebb61e94a8f449763.pdf
- https://static.usrfiles.com/ugd/b8c837_d3b7170ea93f486198b35239bbecb89d.pdf
- https://static.usrfiles.com/ugd/934fc3_840e8f2ab45d4466b825756196f2e4a9.pdf
- https://static.usrfiles.com/ugd/b8c837_d03c5b973cf44b979260c8ccfe8d9224.pdf
- https://cdn.shopify.com/s/files/1/0440/5785/4102/files/descargar_crazy_zombie_8._0_para_android.pdf
- https://cdn.shopify.com/s/files/1/0433/8309/5459/files/goloxibuvur.pdf
- https://static.usrfiles.com/ugd/fa6f14_452069a1e81e4ef1aa57897930f825ed.pdf
- https://static.usrfiles.com/ugd/b47706_b961c3e68ffd4059972c3ddfafd2c6c6.pdf
- https://static.usrfiles.com/ugd/8a419d_18f465b4c8f04a2eb60c4d5e56813135.pdf
- https://static.usrfiles.com/ugd/b8c837_72d4d373bbd24959b2e36528554b99ea.pdf
- https://cdn.shopify.com/s/files/1/0431/6315/6641/files/46240247184.pdf
- https://cdn.shopify.com/s/files/1/0465/3472/1694/files/adobe_reader_for_pc_zip_file.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jenodilibaxu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.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_off00004fa4.bin` `6d85bda3a65b61d21f4607c54accbb0d192bfe37873efd1cf09ab324af675f1d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4FA4	5680 bytes
`font_01_sfnt_off000062ec.bin` `fb0e13af087e64903c228ebf9cdb964f9e30247a4cd4ddf4fde19ca3187e28b5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62EC	16664 bytes
`font_02_sfnt_off00009292.bin` `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9292	4324 bytes

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