Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c74477d1360fd6f…

MALICIOUS

PDF

49.9 KB Created: 2020-08-19 05:18:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55c8573ab5a837249c1ee514131d22e6 SHA-1: 260665d653923af709bff20f70c8572d3b8589e3 SHA-256: 4c74477d1360fd6fb5a414ec6336948534bb8d64ace9a9cd4e6cde2c14ea0f77
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to benign Shopify URLs, but one critical link redirects to known malicious infrastructure at ttraff.ru. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. The file's purpose appears to be to redirect users to malicious content via a seemingly legitimate document.

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=aluminum+extrusion+press+maintenance+manual
    • http://files.chapelheightsumceauclaire.com/uploads/1/3/1/6/131636866/sipizokum-zuwusufu-ribuvo.pdf
    • http://files.lpvpa.ca/uploads/1/3/1/4/131453695/3bbdaf3.pdf
    • http://files.batrssocal.com/uploads/1/3/1/3/131384789/vipibifoxoteroxu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1324/2005/files/cours_bobine_electrique.pdf
    • https://cdn.shopify.com/s/files/1/0435/5463/5937/files/hematology_test_procedure.pdf
    • https://cdn.shopify.com/s/files/1/0437/7817/9221/files/bodaxasofalozuwasodez.pdf
    • https://cdn.shopify.com/s/files/1/0435/4713/2068/files/62793523533.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32732230761.pdf
    • https://cdn.shopify.com/s/files/1/0436/1856/6306/files/10042858081.pdf
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/jaledagavifavisudub.pdf
    • https://cdn.shopify.com/s/files/1/0429/5717/6986/files/bisoxiselokagofose.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/magej.pdf
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/35151879140.pdf
    • https://cdn.shopify.com/s/files/1/0430/7199/6053/files/lobazamoran.pdf
    • https://cdn.shopify.com/s/files/1/0431/3051/9716/files/44655201185.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_off00007736.bin
edcc0efae8b80ea025192c38a193c42afa7006017fcad7e189b2860552220bc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7736 5136 bytes
font_01_sfnt_off00008890.bin
f585031433dba6ad5d684da7ef897f80e1a90bc1393eb088431ee6e0946c8258		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8890 15572 bytes

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