Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ba69c8600a1ff1…

MALICIOUS

PDF

40.1 KB Created: 2020-08-22 05:53:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44f9c636ea374e050237ffdf04e8d7b5 SHA-1: bd824d4ab7e46893f64a6851971b501bf35aae37 SHA-256: d3ba69c8600a1ff1fc3d4df65d962e9b67685ebed7df0d1ce7feeed042f6ed7f
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 a critical heuristic firing for a malicious redirector link. The document body contains numerous embedded URLs, including a primary malicious link to 'ttraff.ru' and a large number of other links hosted on 'cdn.shopify.com' and other domains, suggesting a link farm or redirection strategy. The presence of a malicious redirector link indicates an attempt to lead the user to a harmful destination, likely for phishing or malware delivery.

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=bobrick+b-+2111+pdf
    • http://segufun.drghs.org/uploads/1/3/0/8/130874493/bbfa8297b423d5.pdf
    • http://files.nikolephoto.com/uploads/1/3/1/3/131383297/ritijigo_ganedeposiku_resoritured_nalijosoni.pdf
    • http://tumemele.gpanm.org/uploads/1/3/1/4/131453060/sokaroduz_gidil.pdf
    • https://cdn.shopify.com/s/files/1/0431/2183/6193/files/ancient_china_timeline.pdf
    • https://cdn.shopify.com/s/files/1/0433/9145/1294/files/gokofe.pdf
    • https://cdn.shopify.com/s/files/1/0435/8602/7677/files/femorixesobi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4843/5861/files/21848404668.pdf
    • https://cdn.shopify.com/s/files/1/0437/2227/7032/files/96671476980.pdf
    • https://cdn.shopify.com/s/files/1/0434/9627/6128/files/30217346435.pdf
    • https://cdn.shopify.com/s/files/1/0430/3696/7063/files/fallout_mod_manager_new_vegas.pdf
    • https://cdn.shopify.com/s/files/1/0435/7318/2625/files/bagan_pagodas_history.pdf
    • https://cdn.shopify.com/s/files/1/0431/0476/4068/files/jejofizejulakifabege.pdf
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/8878653354.pdf
    • https://cdn.shopify.com/s/files/1/0432/7342/0965/files/16346010808.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_off0000544f.bin
a00333debb0261c0fd83e657f83eb99ccce7f6521e7c82de1cf4f183e126cb0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x544F 5200 bytes
font_01_sfnt_off00006616.bin
ad27d5c01a5d89a518d0a11faaa77ccf2100fac60f6f324465846e1465b91c49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6616 14552 bytes

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