Malicious PDF — malware analysis report

Static analysis result for SHA-256 934b3fa164f201e5…

MALICIOUS

PDF

31.8 KB Created: 2020-08-18 17:19:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 573394369983f79214a619d4c228dedf SHA-1: 46103f97d6e63a12a64ba4a85ace47d3aa8e02aa SHA-256: 934b3fa164f201e556fbb5db6ca61d17c6694011f1a98c26c489d97721b81589
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, but one critical link redirects to a known malicious domain (ttraff.com). This suggests a link farm or SEO poisoning attack designed to drive traffic to malicious infrastructure. The document body contains garbled text but includes the primary malicious URL and a keyword, indicating a potential 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.com/pify?keyword=edible+gold+leaf+sheets+singapore
    • http://files.capehomerepair.com/uploads/1/3/0/8/130873893/e37863f5d6addc8.pdf
    • https://cdn.shopify.com/s/files/1/0440/7872/7318/files/dakijosilovo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4976/2459/files/the_giver_chapter_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/2684/0737/files/46782237498.pdf
    • https://cdn.shopify.com/s/files/1/0432/9334/3912/files/dugedapu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9299/2410/files/toripinuv.pdf
    • https://cdn.shopify.com/s/files/1/0432/6876/7907/files/bluejackets_manual_1943_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/boriveturaso.pdf
    • https://cdn.shopify.com/s/files/1/0439/2216/1832/files/kojigil.pdf
    • https://cdn.shopify.com/s/files/1/0432/0333/0208/files/linegalimabutixi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8732/2522/files/3075870879.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_off00003ee9.bin
89713f15619a72afbb2d26250928934bfb6535a6f0943fd0cf8cbab2dbb0717f
pdf-font-stream PDF embedded font (sfnt) at offset 0x3EE9 5400 bytes
font_01_sfnt_off00005138.bin
57a686f7193c48b606383b286148076172c143f880ada2a2a49b3f17ca4d4ce0
pdf-font-stream PDF embedded font (sfnt) at offset 0x5138 9912 bytes