Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb5da0db74f7ef47…

MALICIOUS

PDF

41.2 KB Created: 2020-08-25 13:22:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4039973c6db27b8803a115cea85f18a3 SHA-1: 6cd6328a641fb4f1864bd7f7e5af7368aeaa32eb SHA-256: fb5da0db74f7ef470e81c998894cd46190fc07a5a1b4a7e6c9a3b9f5f93b7209
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 Shopify domains hosting other PDFs. However, one critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=offline+book+reading+app+for+android'. This suggests the document is designed to lead users to malicious infrastructure, likely for further exploitation or credential harvesting. The document body, though heavily corrupted, contains the same URL, reinforcing its role as a lure.

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=offline+book+reading+app+for+android
    • http://files.paulineagius.com/uploads/1/3/0/7/130738614/2393472.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99397771733.pdf
    • https://cdn.shopify.com/s/files/1/0457/3554/2950/files/36992228614.pdf
    • https://cdn.shopify.com/s/files/1/0432/2961/0141/files/colonization_and_housewifization_summary.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdf
    • https://cdn.shopify.com/s/files/1/0433/9580/9431/files/daxegafe.pdf
    • https://cdn.shopify.com/s/files/1/0434/2539/8946/files/what_is_the_sunbiz_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0431/4077/6090/files/bifezazugaf.pdf
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/xalepabejokifisegolum.pdf
    • https://cdn.shopify.com/s/files/1/0431/5712/7336/files/bizamozirega.pdf
    • https://cdn.shopify.com/s/files/1/0431/1774/0199/files/baxorakitevomefosuxofexo.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_off00006470.bin
6d007deaa41caaff59728ff5959e0ca1b0f03b1d51f9347a6e916fe87a983255		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6470 5260 bytes
font_01_sfnt_off00007658.bin
e2eabb33bb86b1947935eb0ccfd39a0e798451abcb801bac91abe93155bfec03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7658 10012 bytes

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