Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cbc5fb6a2d6c25e…

MALICIOUS

PDF

42.1 KB Created: 2020-08-22 07:47:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94789d06a99c7546e839b5c24b4a7920 SHA-1: 11ae41d58f57b4f23db6f234b71f1c876deb04be SHA-256: 4cbc5fb6a2d6c25edf411cd35c0e9072f000c81d8d91cc6704a85bbbf500c770
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to appear as a construction company profile sample, but it redirects to malicious infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=small+construction+company+profile+sample+word+format. This indicates a social engineering tactic to lure users into clicking a malicious link, likely leading to further compromise.

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=small+construction+company+profile+sample+word+format
    • http://files.iamfreetour.com/uploads/1/3/1/6/131606674/9139556.pdf
    • http://fizaliko.janislynnecards.com/uploads/1/3/2/6/132695384/5602737.pdf
    • http://mekilam.jremarart.com/uploads/1/3/0/8/130814855/fuxulujufomixol-kafenogubuma-mobumunufo-tejumiru.pdf
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/gutinezakifurokafak.pdf
    • https://cdn.shopify.com/s/files/1/0432/1551/9912/files/31756333045.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kefemomorevogik.pdf
    • https://cdn.shopify.com/s/files/1/0439/4795/0248/files/95841035709.pdf
    • https://cdn.shopify.com/s/files/1/0428/5480/9759/files/27498518727.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojijemorewowasimagaxo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6565/4939/files/28102420873.pdf
    • https://cdn.shopify.com/s/files/1/0434/2143/4023/files/14356502710.pdf
    • https://cdn.shopify.com/s/files/1/0437/8640/4000/files/sickle_cell_anemia_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/82595467958.pdf
    • https://cdn.shopify.com/s/files/1/0449/0782/3259/files/access_point_configuration.pdf
    • https://cdn.shopify.com/s/files/1/0428/3134/7868/files/tinegonamimunuzi.pdf
    • https://cdn.shopify.com/s/files/1/0434/4214/3397/files/trane_air_conditioner_manual.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_off00006641.bin
e64551d8bf089adaf54c1d5df978838ca0006068d98b9a6e6edbbcd6d648d190		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6641 5596 bytes
font_01_sfnt_off00007937.bin
659a7564881320ddd6c06ff6ca0119b6507b671da209e1d91688a50fb609304f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7937 9840 bytes

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