Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d11be9e14e5bbcf…

MALICIOUS

PDF

41.9 KB Created: 2020-08-05 14:56:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5dd15cb679b68679ae74df339621c748 SHA-1: 2685b04db431edddc6825247d9c2dbf286f55f00 SHA-256: 2d11be9e14e5bbcf06d40a4d0533b611085d90afbceecc3242763a4e71481f6a
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, many of which point to a link farm hosted on ttraff.com. This heuristic, combined with the presence of numerous Shopify-hosted PDF links, indicates a link farm attack pattern. The primary malicious URL identified is https://ttraff.com/pify?keyword=revolutionizing+the+sciences+2nd+edition+pdf, which likely serves as a redirector to further malicious content. No scripts were extracted from this sample.

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=revolutionizing+the+sciences+2nd+edition+pdf
    • http://files.bayareamuslimtherapists.org/uploads/1/3/1/3/131380895/3d7b8d.pdf
    • http://files.waltonelectriccorp.com/uploads/1/3/0/7/130775518/guxizapuvekid.pdf
    • http://files.flockofbirdsmosaics.org/uploads/1/3/1/4/131453902/wosadoxavabi.pdf
    • http://files.bigtable.net/uploads/1/3/0/7/130739404/xipexuzogog-lutejavujiwuzu.pdf
    • https://cdn.shopify.com/s/files/1/0439/0669/5320/files/29443463734.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/3349794650.pdf
    • https://cdn.shopify.com/s/files/1/0434/1995/9454/files/40720420003.pdf
    • https://cdn.shopify.com/s/files/1/0430/3034/7938/files/50916240873.pdf
    • https://cdn.shopify.com/s/files/1/0438/0593/3730/files/17454902666.pdf
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/jogadovu.pdf
    • https://cdn.shopify.com/s/files/1/0427/9628/6119/files/bottle_capping_machine_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/xokonozidivirimubifefor.pdf
    • https://cdn.shopify.com/s/files/1/0437/5488/1185/files/dungeon_keeper_ami.pdf
    • https://cdn.shopify.com/s/files/1/0431/0505/8976/files/65702895094.pdf
    • https://cdn.shopify.com/s/files/1/0431/6240/2967/files/alto_saxophone_chromatic_scale.pdf
    • https://cdn.shopify.com/s/files/1/0430/8166/2613/files/51274130887.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_off0000626e.bin
5dc311c07a5dad1eea4d1a5d15bfd3fa69d84268da24db46eee8dcad5d7bc026		 pdf-font-stream PDF embedded font (sfnt) at offset 0x626E 5360 bytes
font_01_sfnt_off000074cd.bin
5684609bbe03033c3c43d514b36b58788a39acfbfe88fee81b514e6001493053		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74CD 11040 bytes

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