Malicious PDF — malware analysis report

Static analysis result for SHA-256 35edf87aa39574e6…

MALICIOUS

PDF

94.3 KB Created: 2020-08-06 20:16:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7299ec9566bde2c9197674a634ad3fee SHA-1: eedbf186bfec4d8ec1062942413258613e11bc6f SHA-256: 35edf87aa39574e6e23fba6d11133fd5c771dca75e6763701827fa8e5ed7d288
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links redirects to a known malicious domain, ttraff.com, which is likely used to host further malicious content or phishing pages. The document body, though heavily obfuscated, contains text related to 'family planning' and the redirect URL also includes this keyword, suggesting a lure to disguise malicious activity.

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.com/pify?keyword=definition+of+family+planning+according+to+who+pdf
    • http://files.iamscientiste.com/uploads/1/3/0/7/130739155/09a234aa63e54.pdf
    • http://files.alwaysamigosyoga.com/uploads/1/3/2/7/132710700/fetorugofibun.pdf
    • http://files.karynhenwood.com/uploads/1/3/0/8/130814682/8043594.pdf
    • https://cdn.shopify.com/s/files/1/0438/6609/5781/files/5812388123.pdf
    • https://cdn.shopify.com/s/files/1/0428/6644/2406/files/kuvuwotisegu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8312/8214/files/25144504083.pdf
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/rejutenadajoverafakofopon.pdf
    • https://cdn.shopify.com/s/files/1/0430/2556/3801/files/75165469726.pdf
    • https://cdn.shopify.com/s/files/1/0439/3644/8667/files/69118370338.pdf
    • https://cdn.shopify.com/s/files/1/0432/2063/1720/files/54251996617.pdf
    • https://cdn.shopify.com/s/files/1/0432/4674/7803/files/31060035649.pdf
    • https://cdn.shopify.com/s/files/1/0433/9456/4252/files/jafimifamosupason.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/rofeziridexifakuxep.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/lajuzevipiwer.pdf
    • https://cdn.shopify.com/s/files/1/0428/7086/6079/files/lubonukarik.pdf
    • https://cdn.shopify.com/s/files/1/0433/7149/5574/files/16418562381.pdf
    • https://cdn.shopify.com/s/files/1/0438/3296/7318/files/modern_control_theory_brogan_solution_manual.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_off000133b1.bin
9770768a25e6d2dc7f0b5057bfe20b27e2bf5f7ab933f623531366e031e00789
pdf-font-stream PDF embedded font (sfnt) at offset 0x133B1 5584 bytes
font_01_sfnt_off000146ab.bin
31bad2181addf0eafd8dcefe6e18b1b4f46925c9c3818c04d4846a164d45a6d0
pdf-font-stream PDF embedded font (sfnt) at offset 0x146AB 10636 bytes