Malicious PDF — malware analysis report

Static analysis result for SHA-256 360e57eba13007c2…

MALICIOUS

PDF

42.0 KB Created: 2020-08-29 11:54:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7e6bdf6ac3ead22e4de29107bb61f8f SHA-1: f224c584c94e1aadaa1c304601c84b6fde2fc1dc SHA-256: 360e57eba13007c237f26e632a35200167ed6029a05cfb4bbc61d89c18420f42
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wix?keyword=how+to+rearrange+pages+in+pdf+adobe+reader'. This URL is presented within the document body, disguised as a helpful guide. The PDF also contains a large number of embedded links, many hosted on Shopify, which is flagged as a link farm. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=how+to+rearrange+pages+in+pdf+adobe+reader
    • https://cdn.shopify.com/s/files/1/0462/4171/0231/files/55420212313.pdf
    • https://cdn.shopify.com/s/files/1/0451/8277/9541/files/curating_content_guide.pdf
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/vidyasagar_college_merit_list_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/2950/3908/files/bigikira.pdf
    • https://cdn.shopify.com/s/files/1/0431/8674/9604/files/marasmus_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/fact_sheet_hand_foot_mouth_disease.pdf
    • https://cdn.shopify.com/s/files/1/0462/7762/3957/files/vedewejojevob.pdf
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/doveberozuvirosubujo.pdf
    • https://cdn.shopify.com/s/files/1/0428/5222/1091/files/gopapegilinebobiko.pdf
    • https://cdn.shopify.com/s/files/1/0434/1681/3735/files/affidavit_of_support_form_for_visitor_visa.pdf
    • https://cdn.shopify.com/s/files/1/0435/8720/7331/files/38028875973.pdf
    • https://cdn.shopify.com/s/files/1/0437/3626/8949/files/pragmatic_in_linguistics.pdf
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/e_500_2004_chiltons_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/6163/1389/files/illusory_truth_effect.pdf
    • https://cdn.shopify.com/s/files/1/0432/3419/7666/files/simumuvarakovalodujanol.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_off00006353.bin
d582b032ab7c082a7ce409bfd193d6c6433fe3fb8ebf6eeba0bb06aa7c5d9e69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6353 5368 bytes
font_01_sfnt_off000075aa.bin
96d931ee69890380284f4172dba95fa3265e7589d68dff61985a6aaf89ff755b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75AA 11540 bytes

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