Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae2ff0d8b975df07…

MALICIOUS

PDF

46.8 KB Created: 2020-07-28 08:00:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c3701ed27678ed9afa7a860b725ae92 SHA-1: 31ce393cc405a908ed85ebc12c2f867663bd84ba SHA-256: ae2ff0d8b975df07d774fb6fc618d76afb715fdae8745af566c23be3cf9a0e2a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one pointing to a known malicious redirector. The heuristic firings indicate that this is likely part of a link farm designed for SEO manipulation or to distribute malicious content. The document body itself is largely unreadable, but the presence of the malicious redirector URL is a strong indicator of malicious intent.

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=catalogo+de+cuentas+nif+2019+pdf
    • http://files.konzacoffeecompany.com/uploads/1/3/0/7/130775490/tumadigemebumewudeg.pdf
    • http://files.ml-journeys.com/uploads/1/3/1/3/131397946/rugazin-jatixapojex-konosaromiwen.pdf
    • http://files.santacruzrotary.com/uploads/1/3/0/8/130813827/zogikanev.pdf
    • http://files.youngcalebcarrbowtie.com/uploads/1/3/0/7/130775558/rubujados-pisodopawenama.pdf
    • http://files.hawaiijudaica.com/uploads/1/3/1/4/131407148/pukafapajum-titax-lejizabosifixuw.pdf
    • http://files.hawaiijudaica.com/upl
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/magumemamenatex.pdf
    • https://cdn.shopify.com/s/files/1/0440/6394/8950/files/xupovotet.pdf
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/gixuwoke.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31903895201.pdf
    • https://cdn.shopify.com/s/files/1/0434/6439/2866/files/pusewizubutekipumuno.pdf
    • https://cdn.shopify.com/s/files/1/0432/8783/8886/files/5044687653.pdf
    • https://cdn.shopify.com/s/files/1/0434/4116/0344/files/42622409468.pdf
    • https://cdn.shopify.com/s/files/1/0428/8797/0975/files/83933693617.pdf
    • https://cdn.shopify.com/s/files/1/0428/6310/0070/files/tifawifugazirafenur.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nisej.pdf
    • https://cdn.shopify.com/s/files/1/0434/0200/2584/files/34764016663.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_off000075e7.bin
d97249914519ba5ad7fa67b6e1945bdc2c85fa1aceb76b21a076633e1af08668		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75E7 5612 bytes
font_01_sfnt_off00008923.bin
67253f5d2f82f53de7903b74fadb37cb5a931e600253ee66582c9bee0a1bc79d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8923 10856 bytes

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