Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ee3ea6f0704b400…

MALICIOUS

PDF

43.8 KB Created: 2020-08-21 14:47:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b6c7b551e0d22afcd9705aec71fb8ae SHA-1: 4fe9d7de5ee717d899873f103043daf0d69e4436 SHA-256: 3ee3ea6f0704b4004179740ced5e4a6d2bb80998072b5eda4064c5c659eff5c2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious infrastructure at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to movie streaming, suggesting a lure to entice users to click the malicious link. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the presence of a malicious redirector.

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=film+bioskop+indonesia+full+movie+mp4
    • http://files.martamoranbishop.com/uploads/1/3/2/6/132681586/rexifavevunil-berokolepaxevu.pdf
    • http://renijeg.warwickvfw.org/uploads/1/3/0/8/130874493/duvaxivotavez-jojivakisaker-fejufejivapagor.pdf
    • http://files.dakotarosefloral.org/uploads/1/3/0/7/130776249/e65b91ae4c3.pdf
    • http://files.fastelectricalrepair.com/uploads/1/3/0/9/130969237/lerivufevize.pdf
    • http://files.hauntoverse.com/uploads/1/3/1/4/131438541/gusedu.pdf
    • http://files.hauntoverse.com/uploads/1/3/1/4/131438541/gusedu.p
    • https://cdn.shopify.com/s/files/1/0430/5692/2778/files/21442313201.pdf
    • https://cdn.shopify.com/s/files/1/0434/1543/7468/files/5736551058.pdf
    • https://cdn.shopify.com/s/files/1/0431/2639/0933/files/39449265390.pdf
    • https://cdn.shopify.com/s/files/1/0428/6296/8991/files/zerixu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0139/6896/files/buwegilamulavofonemofed.pdf
    • https://cdn.shopify.com/s/files/1/0434/0118/3384/files/dotoluxiribesiga.pdf
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/arithmetic_logic_unit_design.pdf
    • https://cdn.shopify.com/s/files/1/0437/5468/4565/files/34935184865.pdf
    • https://cdn.shopify.com/s/files/1/0433/3872/7589/files/21276289531.pdf
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/43510716331.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_off000063e7.bin
0fcafd42039243a4ad982f5247d75825ee977f9aa9713e09196a4e2993d57534
pdf-font-stream PDF embedded font (sfnt) at offset 0x63E7 5396 bytes
font_01_sfnt_off00007634.bin
db22067f985391f4aad763cc4b4bcffee33cafec33cf1dcb569213d7830c5a82
pdf-font-stream PDF embedded font (sfnt) at offset 0x7634 14028 bytes