Malicious PDF — malware analysis report

Static analysis result for SHA-256 41a674d3d35f4ef0…

MALICIOUS

PDF

45.0 KB Created: 2020-08-11 00:58:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c23a70bb9096fd9e90e349d4ba0a414 SHA-1: 972e628bbde9c516019194c2a78025fdfbdbeacd SHA-256: 41a674d3d35f4ef0b98cd289d72d4ead76c55740fa27ea164d70280856d10264
120 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, which is also present in the document body. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF files. The primary malicious URL is https://ttraff.cc/pify?keyword=clothing+brand+marketing+plan+pdf, which likely leads to a phishing or malware distribution site.

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=clothing+brand+marketing+plan+pdf
    • http://files.threadsofmeaning.com/uploads/1/3/2/6/132681392/4863368.pdf
    • http://jurodusor.arcnwi.com/uploads/1/3/1/3/131383657/6437102.pdf
    • http://files.anapomedicine.com/uploads/1/3/1/3/131398533/xapefokuzogixed.pdf
    • http://wososano.mullwildlife.co.uk/uploads/1/3/1/4/131408738/63b6d062765ffd.pdf
    • https://cdn.shopify.com/s/files/1/0434/4800/8866/files/zavoverimop.pdf
    • https://cdn.shopify.com/s/files/1/0450/5577/0776/files/newspaper_activities_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/5038/5051/files/abraham_lincoln_vampire_hunter_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/7073/5014/files/cricut_handbooks.pdf
    • https://cdn.shopify.com/s/files/1/0428/9688/3868/files/jusefatezebej.pdf
    • https://cdn.shopify.com/s/files/1/0427/7351/2359/files/80160177529.pdf
    • https://cdn.shopify.com/s/files/1/0431/4143/1464/files/41437846769.pdf
    • https://cdn.shopify.com/s/files/1/0430/5901/9933/files/gowugurolavezob.pdf
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/59637919543.pdf
    • https://cdn.shopify.com/s/files/1/0448/2108/6365/files/classroom_english_phrases.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_off00007171.bin
85e122b521d384cbbc5419d329a67ee1851bfb38a75d105e21d5e4f28259c75f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7171 5388 bytes
font_01_sfnt_off0000838f.bin
7383e743d201c8cf6287ec3ca0d0dcd47aa2e7a9053fc406f96a465bf552ace1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x838F 10364 bytes

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