Malicious PDF — malware analysis report

Static analysis result for SHA-256 960653008789b7b5…

MALICIOUS

PDF

33.8 KB Created: 2020-08-22 12:39:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7371c7d404c1d1ee5b89420b01974a46 SHA-1: a3f48d7fd11b27360ecb4850138660b01cffe766 SHA-256: 960653008789b7b5aee1ead1f63ae79cad516e9aafe978865432f355e3852ba3
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, also contains the same URL, suggesting a lure to a malicious site. The presence of a link farm heuristic further supports the malicious intent of redirecting users.

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.ru/pify?keyword=baadshah+1999+hd+video+song
    • http://files.reachatweec.org/uploads/1/3/0/7/130738859/nuwodidij_kenozofemuje_rimatorivokus_tazaniwefogox.pdf
    • http://files.sanbrunodogobedienceschool.com/uploads/1/3/1/4/131452938/494f655.pdf
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/28536200408.pdf
    • https://cdn.shopify.com/s/files/1/0431/3215/8116/files/sirivexaravavut.pdf
    • https://cdn.shopify.com/s/files/1/0431/4130/0375/files/82915262415.pdf
    • https://cdn.shopify.com/s/files/1/0437/3640/0037/files/84501587634.pdf
    • https://cdn.shopify.com/s/files/1/0429/2601/4630/files/lapuso.pdf
    • https://cdn.shopify.com/s/files/1/0434/3323/0488/files/xifopoxigujibunaw.pdf
    • https://cdn.shopify.com/s/files/1/0434/2834/8056/files/new_technology_in_construction.pdf
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/pavinareruroximamajutoda.pdf
    • https://cdn.shopify.com/s/files/1/0430/3103/6053/files/approaches_to_the_study_of_international_politics.pdf
    • https://cdn.shopify.com/s/files/1/0432/2754/5757/files/74131440287.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_off0000469c.bin
c924a281ecb655cb40c71e99a79f48a0d93e0462b450ba124e7306c0f3ca44ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x469C 5276 bytes
font_01_sfnt_off00005896.bin
7cc3efe476eacb9b03a3368e2bc820beb5c75916fe83eea0b4e36745ad9b4788		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5896 10020 bytes

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