Malicious PDF — malware analysis report

Static analysis result for SHA-256 3038b2b986149975…

MALICIOUS

PDF

39.1 KB Created: 2020-08-15 12:39:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77e46d3f3c40769da9b1e9ec4a3658b9 SHA-1: fb3bb9e956b87c2e786a0e5f7875b1b7617b3e24 SHA-256: 3038b2b986149975680d1a9d7011e2c1addf98923321a4a51ba1119f24210a40
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to external PDF files hosted on various domains, including Shopify. One URL, 'https://ttraff.com/pify?keyword=tecplot+file+format+example', is flagged as a known malicious redirector. The presence of a link farm and a malicious redirector suggests an attempt to manipulate search engine results or redirect users to malicious content, likely as part of a phishing or SEO scam campaign.

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.com/pify?keyword=tecplot+file+format+example
    • http://gipiw.robertfreemanartist.com/uploads/1/3/1/3/131383271/lukegazixuzi_bidamutama_faxipovadusobo.pdf
    • http://burovo.mreero.com/uploads/1/3/0/8/130814070/a7d39.pdf
    • https://cdn.shopify.com/s/files/1/0436/4258/5241/files/rosejen.pdf
    • https://cdn.shopify.com/s/files/1/0438/6874/9979/files/77966760322.pdf
    • https://cdn.shopify.com/s/files/1/0432/3059/3186/files/64897120606.pdf
    • https://cdn.shopify.com/s/files/1/0430/3618/0634/files/55831756647.pdf
    • https://cdn.shopify.com/s/files/1/0435/9228/6363/files/78441322265.pdf
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/78197499460.pdf
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/luladig.pdf
    • https://cdn.shopify.com/s/files/1/0430/8267/8433/files/96990464641.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34993807018.pdf
    • https://cdn.shopify.com/s/files/1/0439/0843/2040/files/borderlands_3_amara_skill_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/2516/9565/files/48943283271.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_off00005bf2.bin
3844eb2d6dd3d5ec16eb576adeea447b95f4dd431cb4b9c714c40bd6a04303b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF2 5000 bytes
font_01_sfnt_off00006cdf.bin
bdde07fa5faface494124b3c3854815ef228cefdd88730dd9f501ceeccbeb9e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDF 10300 bytes

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