Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e5176d97ed62f03…

MALICIOUS

PDF

41.1 KB Created: 2020-08-30 15:24:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7fd0302062aec34b7ce57f0fb56d7c95 SHA-1: 59dc7cb45c97dc50e149c07f533eb4d00c9fdf8a SHA-256: 4e5176d97ed62f03eab544c4dc8ee5cbc767142e5f8a72360a1a14b1aa6e3116
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to SEO-optimized PDF documents hosted on CDNs. One of the primary links directs to a known malicious redirector at `ttraff.ru`. This suggests a campaign to drive traffic through a link farm to a malicious destination. 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/wix?keyword=pelea+de+morras+de+la+secu
    • https://static.usrfiles.com/ugd/3fc21f_5781194226b04c7780b0048b279843b0.pdf
    • https://static.usrfiles.com/ugd/b8c837_acdbb6ff422f4e5e854f4982dd587dd7.pdf
    • https://static.usrfiles.com/ugd/1cc7e8_0f36d85d87fe4df5926cbb6da3479b64.pdf
    • https://static.usrfiles.com/ugd/565485_ba15880398ba4ad48ded277affd34ac9.pdf
    • https://static.usrfiles.com/ugd/39cb9d_afceb22352cc4468bf13f27581edfa09.pdf
    • https://cdn.shopify.com/s/files/1/0432/4071/8496/files/66769863846.pdf
    • https://cdn.shopify.com/s/files/1/0428/5943/0054/files/problems_of_bureaucracy_in_pakistan.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/zujikul.pdf
    • https://cdn.shopify.com/s/files/1/0465/3862/1087/files/best_places_to_download_cc_images.pdf
    • https://cdn.shopify.com/s/files/1/0432/6844/0232/files/gariwazuramexapusima.pdf
    • https://cdn.shopify.com/s/files/1/0433/1008/8360/files/zotimewuwowapiwofeve.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/sudekumapapumogij.pdf
    • https://cdn.shopify.com/s/files/1/0440/4061/8134/files/hollywood_movie_collection_in_tamil_tamilrockers.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_off00005ec2.bin
b98417287353cc9674bb1e118475619f41b0edc197cf48364315bc5177ba0c6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC2 5084 bytes
font_01_sfnt_off00006ff3.bin
1fdb71f5c5f32bc69c098b02f4447bb7269c1af79695a02301ea32c595b486f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF3 11800 bytes

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