Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7061f2681650f3a…

MALICIOUS

PDF

36.2 KB Created: 2020-08-17 11:33:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9991a91e30f60745ccbead252ea356ed SHA-1: 4ba6b7b4dc6fd657cbaf33227e78d4617dae29b2 SHA-256: b7061f2681650f3a49d2fa955cd941f0c4840b4811023cd0ea81c18c27d65062
150 Risk Score

Malware Insights

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

The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The embedded URL https://ttraff.cc/pify?keyword=beera+nange+aziz+azion is a known malicious redirector. The document's primary purpose appears to be to host a large number of external links, likely leading to phishing pages or malware downloads, as indicated by the PDF_SEO_LINK_FARM heuristic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=beera+nange+aziz+azion
    • http://files.simonfire.com/uploads/1/3/1/3/131380345/bibodosotadujizo.pdf
    • http://xarasew.secfmc.org/uploads/1/3/1/6/131607305/fa38ac71d.pdf
    • http://files.dianamariarossiart.com/uploads/1/3/1/4/131406288/wufuxedaxuk.pdf
    • https://cdn.shopify.com/s/files/1/0433/8014/6343/files/vomig.pdf
    • https://cdn.shopify.com/s/files/1/0431/9055/0679/files/73609678925.pdf
    • https://cdn.shopify.com/s/files/1/0439/2235/8427/files/fedawo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8258/7039/files/after_effect_cc_2020_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/fenawi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7125/8278/files/1066482749.pdf
    • https://cdn.shopify.com/s/files/1/0431/3654/9018/files/niwedemefi.pdf
    • https://cdn.shopify.com/s/files/1/0438/2641/3725/files/hobart_handler_140_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/0698/3333/files/pagisuvikodijafi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4327/4402/files/salebelogijiki.pdf
    • https://cdn.shopify.com/s/files/1/0428/5382/6726/files/mekako.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13908697451.pdf
    • https://cdn.shopify.com/s/files/1/0437/2869/9553/files/harbor_freight_router_table.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_off00004f47.bin
f5394b581c9c76a3c2df1eb405c537772314be33c546ec5a347690141954e21f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F47 4744 bytes
font_01_sfnt_off00005f7b.bin
f9768c9cb3c1e1dc2f3c0bb6684046e58cba98090c2fae5ebdffcb9fce53c1d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7B 10824 bytes

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