Malicious PDF — malware analysis report

Static analysis result for SHA-256 b74cc6d12f4407a0…

MALICIOUS

PDF

46.8 KB Created: 2020-07-29 13:41:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78cc53390db2e07d201da1756631e9ba SHA-1: 902659aac97772fe3d4afebdce8782bb55ca9a7b SHA-256: b74cc6d12f4407a0197df09e8e02fa808d574cf6955664a780e689af2c8067f4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links to external PDF files, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the primary links points to a known malicious redirector. The document body is heavily obfuscated and contains metadata indicating it was generated by wkhtmltopdf, suggesting it's not a legitimate document.

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=the+avery+shaw+experiment+pdf
    • http://files.crossfit-galveston.com/uploads/1/3/2/7/132740511/6025675.pdf
    • http://files.anglianpc.com/uploads/1/3/1/4/131407135/jonuwifominubes.pdf
    • http://files.mkbergh.com/uploads/1/3/2/3/132303013/wazifezimeg.pdf
    • https://cdn.shopify.com/s/files/1/0437/9249/8850/files/88124042507.pdf
    • https://cdn.shopify.com/s/files/1/0440/5189/0341/files/zibizojijitaburibumi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7562/4355/files/70776427884.pdf
    • https://cdn.shopify.com/s/files/1/0437/0821/9560/files/46151760324.pdf
    • https://cdn.shopify.com/s/files/1/0431/4356/1376/files/dotixarejuxazavuliti.pdf
    • https://cdn.shopify.com/s/files/1/0428/3806/5308/files/3327694369.pdf
    • https://cdn.shopify.com/s/files/1/0433/1454/4808/files/77583550461.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/manavojapejovotudiput.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/nawugonizo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4933/6483/files/44414191760.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_off0000790f.bin
aab658b99f50d167b545ff345b2a20bddd526f501cdea03f9f45344151172875		 pdf-font-stream PDF embedded font (sfnt) at offset 0x790F 5196 bytes
font_01_sfnt_off00008aad.bin
04bfe84f5cf633994713d3bb9a106bbce01a5c82349582531ae60b9eee74ac23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AAD 10524 bytes

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