Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b7ca0d399eb1e6a…

MALICIOUS

PDF

48.2 KB Created: 2020-08-08 01:28:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cd4aee101cbb191a1720f6f5fc00f94 SHA-1: 466dc44748dd9de2d7ec37de492d4827318e07c1 SHA-256: 1b7ca0d399eb1e6a2e2d59da80923ebb7ab73a2587c2fb118e44e31b74ec725b
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 of which point to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=automate+programmable+industriel+omron+pdf', which is flagged as a malicious redirector. This suggests the document is designed to lead users to malicious content through a link farm and SEO manipulation tactic.

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=automate+programmable+industriel+omron+pdf
    • http://files.rhsglobalstudies.com/uploads/1/3/1/4/131409305/guwasuvalejogene.pdf
    • http://files.traditionsandrecipes.com/uploads/1/3/2/6/132695602/nadurepusosaf.pdf
    • http://dejuvamu.childrenssafetypartnership.org/uploads/1/3/1/6/131606260/5655766.pdf
    • http://files.australianchurchofantioch.com/uploads/1/3/1/4/131437249/jajobaxar_xozunagerumog.pdf
    • http://files.integratedmusculartherapy.com/uploads/1/3/1/0/131070178/3883040.pdf
    • https://cdn.shopify.com/s/files/1/0435/6639/9647/files/redulekev.pdf
    • https://cdn.shopify.com/s/files/1/0448/0807/7473/files/grade_6_math_worksheets_cbse.pdf
    • https://cdn.shopify.com/s/files/1/0428/8220/3801/files/piwubixisagukika.pdf
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/vijojasidupesuwizimotog.pdf
    • https://cdn.shopify.com/s/files/1/0432/3826/0899/files/63362624425.pdf
    • https://cdn.shopify.com/s/files/1/0436/8944/3483/files/29424076630.pdf
    • https://cdn.shopify.com/s/files/1/0434/1969/7310/files/94539417112.pdf
    • https://cdn.shopify.com/s/files/1/0431/5034/4352/files/learning_outcomes_tamil_medium.pdf
    • https://cdn.shopify.com/s/files/1/0437/4586/9985/files/69769319841.pdf
    • https://cdn.shopify.com/s/files/1/0429/3050/3843/files/definition_of_research_and_development.pdf
    • https://cdn.shopify.com/s/files/1/0434/7147/0742/files/munopivedu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/229258309.pdf
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/mugiz.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_off00007325.bin
6460b0f43687a185f74bbbf4086a7dc327b275a64fa78085ff2b1ab0dc6903b5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7325 5492 bytes
font_01_sfnt_off000085b0.bin
c446f7f85342866e77b86d82accaa50a427cfdbe8afcdf284b3b2c0e4a62594c
pdf-font-stream PDF embedded font (sfnt) at offset 0x85B0 14168 bytes