Malicious PDF — malware analysis report

Static analysis result for SHA-256 eba8a915ca035aaf…

MALICIOUS

PDF

46.6 KB Created: 2020-08-28 00:01:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4dcb4fb48492196fb14b5a03457cf235 SHA-1: 4883c297f1a43ae7fc0ccd7d059b7396124769e5 SHA-256: eba8a915ca035aafbf69c36e0827ed1842ae7e3a15c0b3b158125a8be3c87fcb
120 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link and a large number of embedded links, indicating a link farm strategy. The primary malicious URL identified is https://ttraff.com/pify?keyword=7+couleurs+de+l+arc+en+ciel, which is likely used to redirect users to a malicious site. The document body contains a mix of text and what appears to be obfuscated data, along with references to the identified URLs.

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=7+couleurs+de+l+arc+en+ciel
    • http://files.calvarychapelpisco.com/uploads/1/3/1/4/131437402/ramobumevuxexofuz.pdf
    • http://dakogus.jackyabbott.com/uploads/1/3/1/0/131070872/gudeposixosun.pdf
    • http://files.mercedbicyclecoalition.org/uploads/1/3/1/3/131383629/zumexu.pdf
    • http://lofaw.townofgreenport.com/uploads/1/3/0/7/130738836/nizenabo-wupagizeke.pdf
    • https://cdn.shopify.com/s/files/1/0431/0981/0327/files/99476589601.pdf
    • https://cdn.shopify.com/s/files/1/0433/6166/5192/files/galibejixuwiborebetu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8957/6607/files/piwogujisavagudoji.pdf
    • https://cdn.shopify.com/s/files/1/0429/8244/1113/files/7441688906.pdf
    • https://cdn.shopify.com/s/files/1/0434/3696/6055/files/atkins_de_paula_quimica_fisica.pdf
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/business_analysis_skills.pdf
    • https://cdn.shopify.com/s/files/1/0437/5127/6696/files/39351420719.pdf
    • https://cdn.shopify.com/s/files/1/0440/3088/6053/files/tetajazuxeveditazesew.pdf
    • https://cdn.shopify.com/s/files/1/0462/2870/1338/files/guidelines_for_antibiotic_use_in_primary_care.pdf
    • https://cdn.shopify.com/s/files/1/0433/1431/5422/files/99507269829.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/pazov.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_off000074f6.bin
a96fff779a897a341d17572ec2a8cf1d6c8fff7e35292e28a4c98a92becbcb55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74F6 4920 bytes
font_01_sfnt_off000085b2.bin
d3070e9f86d49c1e1baa640b979220e098eae447d51dea8fae80b5bcac22351f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85B2 12468 bytes

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