Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b0566405520b3e8…

MALICIOUS

PDF

76.9 KB Created: 2020-08-10 12:42:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70eae0e598615412ec5f47509ac0a965 SHA-1: 281df97d7b6e49222a51fccfcd246f87f906dd4c SHA-256: 2b0566405520b3e84890f94a1f435d1d56a642494e16f70bfd65c3d8e6365798
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=fundamentals+of+soil+chemistry+pdf'. This URL is embedded within the document body, disguised as a link to a soil chemistry PDF. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The primary malicious IOC is the redirector URL, which likely leads to a phishing or malware distribution site.

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=fundamentals+of+soil+chemistry+pdf
    • http://jitule.mahsasalali.com/uploads/1/3/0/8/130874493/wuvawilunawido.pdf
    • http://files.rootstoharvest.org/uploads/1/3/1/6/131606672/kaxun.pdf
    • http://files.seanodonnellartworks.com/uploads/1/3/1/4/131437532/senelak.pdf
    • https://cdn.shopify.com/s/files/1/0431/5083/5876/files/48878013297.pdf
    • https://cdn.shopify.com/s/files/1/0432/1289/8461/files/67361493366.pdf
    • https://cdn.shopify.com/s/files/1/0433/7808/1959/files/baruzokave.pdf
    • https://cdn.shopify.com/s/files/1/0432/5376/0162/files/84526817286.pdf
    • https://cdn.shopify.com/s/files/1/0430/9526/1348/files/16799798032.pdf
    • https://cdn.shopify.com/s/files/1/0439/4647/5678/files/waukesha_engine_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/7780/3931/files/jalijitisejivov.pdf
    • https://cdn.shopify.com/s/files/1/0433/0484/5465/files/70199709200.pdf
    • https://cdn.shopify.com/s/files/1/0430/7763/2154/files/9699886759.pdf
    • https://cdn.shopify.com/s/files/1/0428/5048/4390/files/tafisurade.pdf
    • https://cdn.shopify.com/s/files/1/0433/5622/5686/files/govelovizipagadisob.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_off0000eeaa.bin
c9c5ecacbf67e74f3159c2bf30a86739d4a9a2618fe99034053131802c314150		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEEAA 5452 bytes
font_01_sfnt_off00010114.bin
8394b4fe1953620b73c043437ba5be51f9f4e37a9fe1c0c840c4e97f4c7a8039		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10114 11048 bytes

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