Malicious PDF — malware analysis report

Static analysis result for SHA-256 eba330ea185001a6…

MALICIOUS

PDF

34.7 KB Created: 2020-08-06 14:57:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 850d278d9391e5af96091910728dfd0e SHA-1: f62cd3732da8f5a759066bfd07df04777c10f9b7 SHA-256: eba330ea185001a6c6b1a892f3296cbe2031a4283ccc04b7c6c35a7e4ce4376b
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.ru/pify?keyword=cambridge+international+dictionary+of+english+pdf'. This suggests the document is part of an SEO poisoning or link farm scheme designed to drive traffic to malicious infrastructure. No scripts were extracted, and the document body is heavily obfuscated.

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=cambridge+international+dictionary+of+english+pdf
    • http://jobez.villarosavisuals.com/uploads/1/3/0/8/130873995/c764f3c.pdf
    • http://files.pebblebeauty.com/uploads/1/3/1/4/131452963/xejitesusurubar.pdf
    • http://files.lifton.ca/uploads/1/3/0/9/130969494/karow.pdf
    • http://files.awardwinningculture.com/uploads/1/3/1/4/131437464/9b2da4c144aa.pdf
    • http://files.mattcameron949.com/uploads/1/3/0/9/130969889/9815991.pdf
    • https://cdn.shopify.com/s/files/1/0429/4872/2851/files/12989626584.pdf
    • https://cdn.shopify.com/s/files/1/0432/8849/4236/files/senran_kagura_estival_versus_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/55981208064.pdf
    • https://cdn.shopify.com/s/files/1/0429/5399/8487/files/wuvepakukuj.pdf
    • https://cdn.shopify.com/s/files/1/0429/6533/6217/files/28649547240.pdf
    • https://cdn.shopify.com/s/files/1/0435/5024/5028/files/mawafefodijezifodedi.pdf
    • https://cdn.shopify.com/s/files/1/0432/2246/6720/files/90229032146.pdf
    • https://cdn.shopify.com/s/files/1/0430/0062/7363/files/jumedavajajivaziv.pdf
    • https://cdn.shopify.com/s/files/1/0434/3146/1016/files/round_rock_weather_radar.pdf
    • https://cdn.shopify.com/s/files/1/0436/4291/2926/files/bojareremixaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/2390/9532/files/29338110508.pdf
    • https://cdn.shopify.com/s/files/1/0431/6109/2255/files/21065817993.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_off00004938.bin
1ed09786051cc9275387f80d61a72a6234b53d49c0178db654d9de6c5012cb82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4938 5716 bytes
font_01_sfnt_off00005c7f.bin
5ee32c5ac52a68ba476cd7a5c25de32789b6c3ddb6b2f1752a96ff941df11432		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7F 9688 bytes

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