PDF malware analysis — malicious · ed799f2fc229f5e1

MALICIOUS

PDF

44.1 KB Created: 2020-08-30 08:02:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c016647c86fd9eacddb0227b7f6e63d9 SHA-1: 779b50ee9e0566dd876e6eb18b10392f10fbf99e SHA-256: ed799f2fc229f5e1b0dfd2fbaea6a30ca36ae15020b3c73f2f0412f0cd38aa8d

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL identified is ttraff.ru, which is associated with malicious redirector infrastructure. The document body, though heavily obfuscated, contains this URL and references to other PDFs, supporting the link farm detection. The ML classifier also strongly indicated maliciousness.

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.ru/wix?keyword=comment+faire+remarcher+un+feutre
- https://static.usrfiles.com/ugd/5af86b_289a43f0e49f4d549c6fc4581f10fe98.pdf
- https://static.usrfiles.com/ugd/dad90e_d31334ac10164cd5a5091e4472108933.pdf
- https://static.usrfiles.com/ugd/82e28d_afb59ba45a934413af1457ce5ff909e9.pdf
- https://cdn.shopify.com/s/files/1/0427/7813/2636/files/wunulaporutawuboxewowuguk.pdf
- https://cdn.shopify.com/s/files/1/0436/0273/9362/files/rawidosutivadaweke.pdf
- https://cdn.shopify.com/s/files/1/0428/7974/6207/files/35897620342.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/norojakibi.pdf
- https://cdn.shopify.com/s/files/1/0430/4466/7553/files/ansiedad_estres_y_deporte_sara_marquez.pdf
- https://static.usrfiles.com/ugd/63d3ad_510f72eb296640fe978a4c20e8f09c5a.pdf
- https://static.usrfiles.com/ugd/b8c837_56d54847a64f4655a2ec39c63baa34b4.pdf
- https://static.usrfiles.com/ugd/b8c837_09ff9eee10534719a34530a46cfcff34.pdf
- https://static.usrfiles.com/ugd/b8c837_4bddd9dbab824720ad073600196511af.pdf
- https://cdn.shopify.com/s/files/1/0451/6282/3834/files/articulos_cientificos_de_la_unam.pdf
- https://cdn.shopify.com/s/files/1/0428/1407/9143/files/tibajumotekopubomajejume.pdf
- https://cdn.shopify.com/s/files/1/0440/8508/4310/files/tazivozoro.pdf
- https://cdn.shopify.com/s/files/1/0430/8841/2836/files/25709899790.pdf
- https://cdn.shopify.com/s/files/1/0430/7392/9378/files/vunufomogibanawamezoreka.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_off00006ac3.bin` `4ddaa5302c2c62ea14b6344be921ef81da84718d7a09a2a52f26a2ef4ffb31af`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6AC3	4816 bytes
`font_01_sfnt_off00007aed.bin` `0bc7522e652e28f49abeda9da851932c9e017a5a5d7481d9c3cafa4510b8da13`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7AED	12236 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.