Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f0a64505f084255…

MALICIOUS

PDF

42.1 KB Created: 2020-08-16 18:22:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a60e0f10be9f61d5638645f50e846d2 SHA-1: 7e58451ae032c5f39bc8c2f433a30028db59c433 SHA-256: 9f0a64505f08425583c13541b5e16c15a961850186d84100579af50419a45686
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded URLs suggest a lure related to job applications or information systems support. The PDF_SEO_LINK_FARM heuristic indicates a large number of links, many hosted on Shopify, likely to obscure the malicious redirector. No scripts were extracted from this sample.

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.cc/pify?keyword=information+systems+support+officer
    • http://rulod.livingforlivestock.com/uploads/1/3/1/8/131872269/1560350.pdf
    • http://files.beclaims.com/uploads/1/3/1/3/131398094/40fab5.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wixet.pdf
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/92641147363.pdf
    • https://cdn.shopify.com/s/files/1/0439/8671/4782/files/html_blank_template.pdf
    • https://cdn.shopify.com/s/files/1/0435/8239/0435/files/videopad_registration_code.pdf
    • https://cdn.shopify.com/s/files/1/0438/4751/6325/files/61102251032.pdf
    • https://cdn.shopify.com/s/files/1/0434/0219/9196/files/psychology_facts_about_love.pdf
    • https://cdn.shopify.com/s/files/1/0447/9755/8941/files/how_to_convert_cdr_file_to_online.pdf
    • https://cdn.shopify.com/s/files/1/0431/0669/7367/files/9793968240.pdf
    • https://cdn.shopify.com/s/files/1/0428/5097/5910/files/34762479972.pdf
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/nimowiwizowexovi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4015/3505/files/latavaropijozinub.pdf
    • https://cdn.shopify.com/s/files/1/0434/6943/9141/files/composition_centesimale.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_off00006699.bin
50dded57ecf6304783f97659ca28898cf773846bed68438e05af93a90c9c933a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6699 5168 bytes
font_01_sfnt_off00007819.bin
085c26c9a0bd990601a74f76bb4e0c1d0d5e9e5d0b675ecd5244c79b381752ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7819 10472 bytes

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