Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e8bac4e40735c8c…

MALICIOUS

PDF

34.3 KB Created: 2020-08-05 07:40:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67e5b354c22e4de9bba9e30090abbe65 SHA-1: 435408f3f5a6e5e4ff0c48bd091a735e0d09c05c SHA-256: 7e8bac4e40735c8cde316ac7bc18ac3825b87fa72658f7b4adbf6e892c7ed89f
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which are hosted on Shopify. One of these links, https://ttraff.cc/pify?keyword=ishakamusa+barashango+pdf, is identified as a known malicious redirector. This suggests the document is designed to lure users into clicking malicious links, potentially 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.cc/pify?keyword=ishakamusa+barashango+pdf
    • http://files.kewosteopath.co.uk/uploads/1/3/0/8/130814874/8925865.pdf
    • http://files.inspirlearn.com/uploads/1/3/2/6/132695749/ff7864f0.pdf
    • http://files.cloverfieldranch.com/uploads/1/3/2/6/132695571/2574601.pdf
    • https://cdn.shopify.com/s/files/1/0430/7792/7063/files/23693338100.pdf
    • https://cdn.shopify.com/s/files/1/0440/2036/7510/files/fozurawaralekebirito.pdf
    • https://cdn.shopify.com/s/files/1/0431/6063/3504/files/33381425037.pdf
    • https://cdn.shopify.com/s/files/1/0434/4040/6684/files/95693859296.pdf
    • https://cdn.shopify.com/s/files/1/0428/1755/2543/files/bupidilinorer.pdf
    • https://cdn.shopify.com/s/files/1/0435/3074/8072/files/38779492821.pdf
    • https://cdn.shopify.com/s/files/1/0429/0455/1590/files/ketokopazoradopolanotep.pdf
    • https://cdn.shopify.com/s/files/1/0431/4628/1122/files/pepifixarinamofavifoja.pdf
    • https://cdn.shopify.com/s/files/1/0434/3998/0711/files/ego-_t_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/8375/1831/files/nuxaropuxugonowiri.pdf
    • https://cdn.shopify.com/s/files/1/0432/5687/3128/files/99695246994.pdf
    • https://cdn.shopify.com/s/files/1/0429/5802/8959/files/miwugif.pdf
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/kepuzudalasovijiwinamo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9522/8565/files/wodoguwu.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_off00004875.bin
1af9312cdfb306ba3db10b01bb59631fbdc909022dd0590d0a8b36e78bed8e69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4875 5564 bytes
font_01_sfnt_off00005b32.bin
30bedb32da09b168d1d90bc72e88826c2b420d5f58848d6c349ad0969387afb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B32 9836 bytes

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