Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7fb01c935966566…

MALICIOUS

PDF

43.9 KB Created: 2020-08-12 03:02:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fec7bc823a23217981f7084f5cbaa304 SHA-1: 84777117c33e996448de1bb310ab838ab6bc8865 SHA-256: e7fb01c9359665668630e2b8b627939c0ece13531dc8b25caa31877bb64b4627
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing for a PDF link farm. One of the primary links directs to a known malicious redirector, ttraff.cc, which likely serves as a gateway to further malicious content. The document body itself is heavily obfuscated and contains references to the redirector URL and numerous benign-looking Shopify URLs, suggesting a lure or a method to disguise the malicious intent. No scripts were extracted from this sample.

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.cc/pify?keyword=strategus+aloeus+pdf
    • http://files.pucciniamerica.org/uploads/1/3/1/4/131407571/nolexemapowoporav.pdf
    • http://files.downtownbhamplan.com/uploads/1/3/1/1/131164473/lufizifazowebaban.pdf
    • http://files.rgvmenu.com/uploads/1/3/1/4/131438163/suxigalesu.pdf
    • http://files.westlinnalcohol.com/uploads/1/3/1/6/131606331/nimofizopora-fepixi.pdf
    • http://zegirazo.gathermystic.com/uploads/1/3/1/4/131453005/gofus-pakogatisije-bilafuzad.pdf
    • https://cdn.shopify.com/s/files/1/0437/0527/0427/files/cambridge_synonyms_and_antonyms_dictionary.pdf
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/rojila.pdf
    • https://cdn.shopify.com/s/files/1/0428/3521/4503/files/72337236474.pdf
    • https://cdn.shopify.com/s/files/1/0437/1739/4586/files/54049680423.pdf
    • https://cdn.shopify.com/s/files/1/0434/4011/1782/files/fetaniwazibejopefi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/71941714649.pdf
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/vutubebenepajunapopafi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6845/6086/files/piviriluzuzorita.pdf
    • https://cdn.shopify.com/s/files/1/0428/8787/2671/files/stony_brook_textbooks.pdf
    • https://cdn.shopify.com/s/files/1/0429/8761/8463/files/pdf_file_editor_software_free_online.pdf
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/pafoboteripopaxokeriwosus.pdf
    • https://cdn.shopify.com/s/files/1/0430/1049/0519/files/69098582742.pdf
    • https://cdn.shopify.com/s/files/1/0429/1523/3959/files/fugimuwed.pdf
    • https://cdn.shopify.com/s/files/1/0431/8268/6372/files/pioneer_fh-_x700bt_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_off00006d07.bin
0e2cc5be80714e3741d63ba483ce0b02460641b9f121bb9d8e079cc6e1e38b62
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D07 5312 bytes
font_01_sfnt_off00007f21.bin
3dd5cac2122ac0075151686f0851777e678ad7fa4da100864ec7de9cac965ec4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F21 10444 bytes