Malicious PDF — malware analysis report

Static analysis result for SHA-256 22628bf92ddafca6…

MALICIOUS

PDF

47.6 KB Created: 2020-08-03 08:15:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 631493071111de3a4236c54e275aa835 SHA-1: 06755afc18cdb0b463211149a3a84b8804ecb4d6 SHA-256: 22628bf92ddafca677f5ec4687f199691ced1bee85e1465b3b8087e82b05572b
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of numerous embedded links. One critical heuristic indicates a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=d%2526+d+urchin+background'. Another critical heuristic flags the document as a PDF SEO link farm, containing 30 external PDF links, with a dominant host of 'cdn.shopify.com'. The document body is heavily obfuscated and appears to contain the URLs, suggesting the primary intent is to lure users to external, potentially malicious, sites.

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=d%2526+d+urchin+background
    • http://files.nicaraguaspanishlanguage.com/uploads/1/3/1/4/131437671/tanogivejupufakaf.pdf
    • http://files.londonafrost.com/uploads/1/3/0/7/130775357/zimabegozajid.pdf
    • http://kamiji.thebotanyscholar.com/uploads/1/3/1/4/131438137/pejir-kewanupum.pdf
    • http://files.youthvoicesandiego.com/uploads/1/3/1/4/131406736/9483354.pdf
    • http://files.panama-yachting-services.com/uploads/1/3/2/6/132695491/c93f9e8a0d3.pdf
    • https://cdn.shopify.com/s/files/1/0432/1070/3010/files/7291765107.pdf
    • https://cdn.shopify.com/s/files/1/0432/5366/1858/files/foduvagojizagol.pdf
    • https://cdn.shopify.com/s/files/1/0431/1554/4737/files/vudusewefesa.pdf
    • https://cdn.shopify.com/s/files/1/0438/3421/2509/files/75988836431.pdf
    • https://cdn.shopify.com/s/files/1/0432/5107/3174/files/zevavejedanamonukogisa.pdf
    • https://cdn.shopify.com/s/files/1/0430/0872/1045/files/toxewe.pdf
    • https://cdn.shopify.com/s/files/1/0428/3593/5388/files/service_communication_failure_pnkbstra._ex.pdf
    • https://cdn.shopify.com/s/files/1/0431/6259/9586/files/68099217202.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/15897713771.pdf
    • https://cdn.shopify.com/s/files/1/0431/7003/7917/files/rafalenejefojemogabiri.pdf
    • https://cdn.shopify.com/s/files/1/0429/6949/7753/files/19154940435.pdf
    • https://cdn.shopify.com/s/files/1/0429/6274/7548/files/lekijiz.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058ea.bin
2c9ac78d7d5e397b5777cd5fa0e55748b4e4c949be5e5376ec37660d69ba0f92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58EA 4844 bytes
font_01_sfnt_off000069ba.bin
d46272a35c141788e45a942f60d3ac75eba256168db5716376ff56f0f84bb3df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69BA 4156 bytes
font_02_sfnt_off000077e8.bin
974fb3d4578a869db3147d9033e16b9b13a8c07d819e7f328331f0328cd7e21c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77E8 10556 bytes
font_03_sfnt_off00009c0c.bin
7427c6bc67859b578149a261544bb1535a5c5cc5499c5bcf465df30433ecb59a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C0C 16200 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.