Malicious PDF — malware analysis report

Static analysis result for SHA-256 3868d9a17c2babd7…

MALICIOUS

PDF

36.8 KB Created: 2020-08-14 22:50:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 938efc799e44143aeeaee79a59884f98 SHA-1: f6c99f7c5d5bba5f4e2c58d4afebb60242c4fd8d SHA-256: 3868d9a17c2babd70ced7847732c240bfa2aa5e556952d58b7c369743928366e
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 designed for SEO manipulation. One of the primary links, 'https://ttraff.cc/pify?keyword=bloody+mary+full+movie', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious content, likely for phishing or malware distribution.

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=bloody+mary+full+movie
    • http://files.nursinghomeneglectatty.com/uploads/1/3/2/7/132740767/fizivozoriri_viduwigeregivub.pdf
    • http://xoxumuv.abaofwisconsin.org/uploads/1/3/1/1/131163744/rupivosejosigololo.pdf
    • http://bokagevid.5dogdigital.com/uploads/1/3/0/7/130775045/5385406.pdf
    • http://pukav.themedicalscienceeditor.net/uploads/1/3/0/9/130969723/1880266.pdf
    • https://cdn.shopify.com/s/files/1/0427/4742/9031/files/dale_carnegie_sales_training.pdf
    • https://cdn.shopify.com/s/files/1/0431/7757/4562/files/87344683531.pdf
    • https://cdn.shopify.com/s/files/1/0427/8750/4294/files/canon_t2i_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/5667/6510/files/guideline_value_for_survey_number.pdf
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/makubuxepivatewu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lomapatigusobotatijizu.pdf
    • https://cdn.shopify.com/s/files/1/0430/5344/9365/files/tafop.pdf
    • https://cdn.shopify.com/s/files/1/0437/2175/2731/files/buruwonuxanewufabig.pdf
    • https://cdn.shopify.com/s/files/1/0429/3260/0985/files/95525362406.pdf
    • https://cdn.shopify.com/s/files/1/0434/4689/4758/files/esp8266_arduino_uno_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0435/0997/3147/files/milureritifuwukefutum.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_off0000513c.bin
fb9639ca14de6fd35d2ddbdc550ceb72b1f509bf05bc6defd9607a51d1d2dd38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x513C 5088 bytes
font_01_sfnt_off00006280.bin
5eda69ce779b728582943cb284b139157a6ba00ec7f94b112db46e7667dac265		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6280 10576 bytes

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