Malicious PDF — malware analysis report

Static analysis result for SHA-256 d36b582522350caf…

MALICIOUS

PDF

44.9 KB Created: 2020-08-02 17:45:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b22776984608a99e85923f693189271e SHA-1: 1dc5a07f50b2f6f621f6b96bd53f9839a3d9e2f4 SHA-256: d36b582522350caf3846949f72d920e256f6680187a48570eae454755fb2f389
150 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 a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. This indicates the document's primary purpose is to lure users to malicious sites. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wb?keyword=macroeconomic%20theory%20a%20dynamic%20general%20equilibrium%20approach%20pdf
    • http://files.primarycoffeeroasters.com/uploads/1/3/0/7/130738883/fiputopogo-dewalakukagijap-mubedodu-naronanefolade.pdf
    • http://files.davidsblakeslee.net/uploads/1/3/2/7/132740541/5778558.pdf
    • http://files.coastalk9c.com/uploads/1/3/2/6/132681207/kakebu_kugexalelilo_wolitodafadoxok_minokexogi.pdf
    • http://files.dancerscornerlr.com/uploads/1/3/1/3/131384121/ladukafafifolijez.pdf
    • http://files.in2improv.org/uploads/1/3/0/7/130739204/bajufirubogejofirifi.pdf
    • https://cdn.shopify.com/s/files/1/0436/5395/5742/files/pezamanevitozegikukoz.pdf
    • https://cdn.shopify.com/s/files/1/0428/0877/0726/files/12186340651.pdf
    • https://cdn.shopify.com/s/files/1/0440/4389/4934/files/44945453874.pdf
    • https://cdn.shopify.com/s/files/1/0432/7378/1411/files/36468358295.pdf
    • https://cdn.shopify.com/s/files/1/0433/8489/7701/files/fikevi.pdf
    • https://cdn.shopify.com/s/files/1/0427/6020/8540/files/50085090369.pdf
    • https://cdn.shopify.com/s/files/1/0429/1428/3686/files/razofewufe.pdf
    • https://cdn.shopify.com/s/files/1/0432/5651/2680/files/7318394287.pdf
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/89299816945.pdf
    • https://cdn.shopify.com/s/files/1/0430/2356/4957/files/miwivopizikodu.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_off00006f0c.bin
4e7ebb093d5f7776ffc66a796eb0f78c9dbafcff454426cf58bd2d5b5f216edc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F0C 5764 bytes
font_01_sfnt_off00008285.bin
786aaf98822cc4539bac9418d472b426aeefb24ea0ad3dc6d447e991881dffe4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8285 10840 bytes

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