Malicious PDF — malware analysis report

Static analysis result for SHA-256 46f317a0c4bf684a…

MALICIOUS

PDF

41.5 KB Created: 2020-08-03 22:07:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7edf389b720400f4514aa5544ae9459d SHA-1: cee473143721d9c147bb288468e7ff3235d1cc79 SHA-256: 46f317a0c4bf684abc8ea0f165cf3042074768ccad82642e9a55f68735d27599
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link to a known malicious redirector. The document body itself is largely obfuscated, but the presence of the redirector URL suggests an attempt to lure the user to a malicious site. The file also exhibits characteristics of a link farm, with many links pointing to Shopify-hosted PDFs, likely for SEO manipulation or to host further malicious content.

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=carte+du+monde+pdf
    • http://files.softwavetherapy.com/uploads/1/3/1/8/131856185/1eae4ab07.pdf
    • http://files.zendope.com/uploads/1/3/0/7/130738841/592606.pdf
    • http://files.mrgona.com/uploads/1/3/2/6/132682768/fadezevep-kateses.pdf
    • http://files.internationaltravelingclassroom.com/uploads/1/3/0/9/130970003/bofufotejosozipiluwa.pdf
    • http://files.ijalepublishing.com/uploads/1/3/1/3/131380728/kerum_jesidarunexogu.pdf
    • https://cdn.shopify.com/s/files/1/0429/7211/9193/files/ruxuwufotujix.pdf
    • https://cdn.shopify.com/s/files/1/0431/0781/1482/files/92572098385.pdf
    • https://cdn.shopify.com/s/files/1/0431/1433/2309/files/40821552867.pdf
    • https://cdn.shopify.com/s/files/1/0432/3953/8851/files/93772350990.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lugapib.pdf
    • https://cdn.shopify.com/s/files/1/0430/1085/0979/files/80453072987.pdf
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/gapuxusokodibunigul.pdf
    • https://cdn.shopify.com/s/files/1/0435/3264/8602/files/xemupojuwilodiromasu.pdf
    • https://cdn.shopify.com/s/files/1/0436/1905/7822/files/gamurojixojureroxa.pdf
    • https://cdn.shopify.com/s/files/1/0431/6807/1836/files/33896236579.pdf
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/mafaxonupuja.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_off000061c3.bin
a9e4f7157906476c41923ce2c5e3679b9a916a010baaf674bd7ed707ef8d35a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C3 4880 bytes
font_01_sfnt_off00007246.bin
eb870278f53f617b31cefeffe05f5fa67efbabbf40b0c29e825ae54b36b0f6fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7246 11936 bytes

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