Malicious PDF — malware analysis report

Static analysis result for SHA-256 9597c85a5c5d03a0…

MALICIOUS

PDF

44.3 KB Created: 2020-08-07 19:33:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 943d15f8a23cbc1f7e6841a8c6344cf3 SHA-1: ec3728f81356d8a011409fe96f489dbd63d15748 SHA-256: 9597c85a5c5d03a07a7d4807f835ec64ecb9fa4e02d3a72ac9f7160500ba323a
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 identified as a malicious redirector pointing to 'https://ttraff.com/pify?keyword=coreldraw+tutorial+in+urdu+pdf'. This suggests the document's primary purpose is to lure users into clicking this link, likely leading to a malicious website or further compromise. The presence of many other PDF links, some hosted on Shopify, indicates a potential SEO-based lure or link farm strategy.

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=coreldraw+tutorial+in+urdu+pdf
    • http://files.woodside2-3-4hoa.org/uploads/1/3/1/6/131606206/6ffae453423.pdf
    • http://files.countertenorcorner.com/uploads/1/3/0/8/130874326/2350172.pdf
    • http://files.freakzhub.com/uploads/1/3/1/0/131069819/fadaloso-xomezavifedoxa-dolipenarivakof.pdf
    • http://files.incredibleviolet.com/uploads/1/3/1/4/131406663/zepevegogizav.pdf
    • http://files.ashuler.com/uploads/1/3/1/4/131437311/wubebirotiluvuk-sogituxu.pdf
    • https://cdn.shopify.com/s/files/1/0435/7757/3535/files/23340144438.pdf
    • https://cdn.shopify.com/s/files/1/0431/8887/9521/files/a_practical_english_grammar_exercises_2_third_edition.pdf
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/night_vale_podbay.pdf
    • https://cdn.shopify.com/s/files/1/0432/5743/0176/files/dimarotovelukopijisopex.pdf
    • https://cdn.shopify.com/s/files/1/0428/9075/6252/files/pituxibimemosejewoba.pdf
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/51473563843.pdf
    • https://cdn.shopify.com/s/files/1/0432/5838/0446/files/tupofovofosinarunumiw.pdf
    • https://cdn.shopify.com/s/files/1/0432/6565/4939/files/46320770571.pdf
    • https://cdn.shopify.com/s/files/1/0432/0457/5387/files/40086383364.pdf
    • https://cdn.shopify.com/s/files/1/0434/4633/7703/files/zemefiguzufut.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_off00006f55.bin
8a9a455c3847e909bd786ca5391105fefa14dac1fa492e36aae0af347d02f24f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F55 4856 bytes
font_01_sfnt_off00007ff7.bin
5e14e907984d7253f20028b3d599c5b7f09234704a700711ba707242cb02cd68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF7 11000 bytes

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