Malicious PDF — malware analysis report

Static analysis result for SHA-256 08c1ab1674e3bbe4…

MALICIOUS

PDF

42.0 KB Created: 2020-08-10 16:03:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ec4257470bccdbd63e0a94d41c09d23c SHA-1: 6eaff359638acc5e7071a1c8e1984768e90ec579 SHA-256: 08c1ab1674e3bbe49b8a1f84b2e19fe0a9991876a7b10e321debb6dba0f2dc55
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many pointing to Shopify-hosted PDFs, which is indicative of a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector, https://ttraff.com/pify?keyword=english+news+paper+pdf+download+today, suggesting an attempt to lead users to malicious content. While no scripts were directly extracted, the structure and heuristics point towards a malicious document designed to distribute or redirect users to other potentially harmful files.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=english+news+paper+pdf+download+today
    • http://files.joysartstudio.com/uploads/1/3/2/7/132740270/roletez-kipekizajidivuf-tediwixok-bibub.pdf
    • http://files.larryssportsexchange.com/uploads/1/3/0/8/130874128/folerezome.pdf
    • http://files.pacificcoastvolleyballclub.com/uploads/1/3/2/3/132303407/pajavu.pdf
    • http://files.tanditech.com/uploads/1/3/1/6/131637374/bexovejadatupamofidi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/8320/9631/files/14049492489.pdf
    • https://cdn.shopify.com/s/files/1/0434/6046/0701/files/38445767442.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70277109097.pdf
    • https://cdn.shopify.com/s/files/1/0440/0067/3950/files/sine_qua_non_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/31630377613.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riginijulu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0731/9974/files/83904870965.pdf
    • https://cdn.shopify.com/s/files/1/0431/1348/0343/files/50642901117.pdf
    • https://cdn.shopify.com/s/files/1/0448/0339/1645/files/public_relations_copy_writing.pdf
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/38667058940.pdf
    • https://cdn.shopify.com/s/files/1/0429/9846/4665/files/pre_algebra_word_problems.pdf
    • https://cdn.shopify.com/s/files/1/0435/6472/8479/files/work_life_balance_hr_project.pdf
    • https://cdn.shopify.com/s/files/1/0435/2344/0804/files/jenowebipidisig.pdf
    • https://cdn.shopify.com/s/files/1/0433/4501/9045/files/sbi_credit_card_statement_password.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065d3.bin
ff18f41693bb09555471e1858cc7f1c758c7fbb1812299b14fdcee238720d6ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65D3 5452 bytes
font_01_sfnt_off0000786d.bin
81ffd402f5a87301d39aaa744830a938cd449a69a21096cc7320428a24c53d93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x786D 10116 bytes

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