PDF malware analysis — malicious · 850215ba01d9b9d1

MALICIOUS

PDF

41.3 KB Created: 2020-08-30 03:01:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 752ccd9b15852eb3d529986f7e5fcd0a SHA-1: bc0e6a73dc5c9f2730b646772407c157f2ea0f65 SHA-256: 850215ba01d9b9d164be9d7368569719ffd0bee28334cc23eb61a6c068eee946

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.ru. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on static.usrfiles.com. The document body, though heavily garbled, contains the same text as the malicious URL's keyword parameter, suggesting a lure to download a file. No scripts were extracted, but the presence of a malicious redirector and link farm indicates a phishing or malware distribution attempt.

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=t%25C3%25A9l%25C3%25A9charger+la+chanson+de+gali+gali
- https://static.usrfiles.com/ugd/b8c837_941a267a2d6b460f93fc17b5f551428b.pdf
- https://static.usrfiles.com/ugd/b8c837_664249c81da44ab2969ba9e06293e833.pdf
- https://static.usrfiles.com/ugd/8cbfce_5abb9e847d2e4252ab81fe4d46a9bd75.pdf
- https://static.usrfiles.com/ugd/b11f6d_3ffbb3789d8e4276a36a78cf70a8ea90.pdf
- https://static.usrfiles.com/ugd/b58d21_4d88984b27254e4cb27a467bab8bf965.pdf
- https://cdn.shopify.com/s/files/1/0433/5216/2462/files/mokatiwalabidoxofajila.pdf
- https://cdn.shopify.com/s/files/1/0428/7306/1532/files/dutij.pdf
- https://cdn.shopify.com/s/files/1/0430/9506/4733/files/68046519593.pdf
- https://cdn.shopify.com/s/files/1/0431/0522/2813/files/pujiwodojufovize.pdf
- https://cdn.shopify.com/s/files/1/0436/8993/5002/files/89918414026.pdf
- https://cdn.shopify.com/s/files/1/0431/9277/8901/files/79030581629.pdf
- https://cdn.shopify.com/s/files/1/0431/0433/8074/files/93606184143.pdf
- https://cdn.shopify.com/s/files/1/0430/3500/0981/files/jabubev.pdf
- https://static.usrfiles.com/ugd/6846fe_56f365c18f554b75845b581a5950925c.pdf
- https://static.usrfiles.com/ugd/b8c837_550b66e1cead48ff8e3451b63a69ed27.pdf
- https://static.usrfiles.com/ugd/097bd5_18a0681448904058b753dd758f986c6d.pdf
- https://static.usrfiles.com/ugd/b8c837_ad9832d2efd24c09924b5cce1a436411.pdf
- https://static.usrfiles.com/ugd/ae059d_5eaea4f3b4784b6d99525d4732b2836c.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_off00006095.bin` `a5bae31ee5781bcee9225a01528e3ce1535f5b11b872471dfbabd0de295ed733`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6095	5292 bytes
`font_01_sfnt_off0000723f.bin` `47afb33872ee23d6f5b2809ff9c70a4e85db75a40835f91656acc79900702043`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x723F	10992 bytes

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