Malicious PDF — malware analysis report

Static analysis result for SHA-256 9296388d1e4fc783…

MALICIOUS

PDF

54.7 KB Created: 2020-08-12 05:41:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7461295c88c26346b51e073efddb2cae SHA-1: 42c6271849f665dd4d81064b554dbccffc4af467 SHA-256: 9296388d1e4fc7838986181f2f470d7562652fef3c375a9884d311dce1aa0150
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=embriologi+atresia+ani+pdf'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external PDF links, many hosted on shopify.com. The document body is heavily obfuscated but contains the same redirector URL and a list of other PDF links, reinforcing the link farm and redirection attack pattern. No scripts were extracted from this sample.

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/pify?keyword=embriologi+atresia+ani+pdf
    • http://files.monacannation.com/uploads/1/3/0/7/130739564/kigenabig_dofuti_xadaneva.pdf
    • http://kopusofov.totheflixs.com/uploads/1/3/1/4/131438137/1945126.pdf
    • http://files.accuratehomeinspections.ca/uploads/1/3/0/7/130775750/7940005.pdf
    • https://cdn.shopify.com/s/files/1/0435/2465/3224/files/9918079790.pdf
    • https://cdn.shopify.com/s/files/1/0429/8267/0485/files/biviro.pdf
    • https://cdn.shopify.com/s/files/1/0433/9000/9502/files/15554864835.pdf
    • https://cdn.shopify.com/s/files/1/0439/8442/1022/files/gemelepifuxiril.pdf
    • https://cdn.shopify.com/s/files/1/0437/6766/0693/files/sindrome_de_cadera_en_resorte.pdf
    • https://cdn.shopify.com/s/files/1/0437/7070/8125/files/beckett_price_guide_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/9432/7975/files/12977947857.pdf
    • https://cdn.shopify.com/s/files/1/0429/2784/9639/files/merowurijukutazabem.pdf
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/pimivusidoxamuvoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/dubai_expo_2020_logo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37394074323.pdf
    • https://cdn.shopify.com/s/files/1/0428/2122/2567/files/walmart_grant_application.pdf
    • https://cdn.shopify.com/s/files/1/0435/9300/7272/files/79831120879.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.

FilenameKindSourceSize
font_00_sfnt_off00009724.bin
b92a613a6559e5aadf96b1e51660acbd99392f796267e15683c856254a713b7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9724 5460 bytes
font_01_sfnt_off0000a998.bin
36c28f1f1b20bad267c2547974dc823e93f21e35cfd6592e18e97bf7b1a9e0c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA998 10656 bytes

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