Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec56150063742360…

MALICIOUS

PDF

41.9 KB Created: 2020-08-16 12:46:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76018b8855bbb07c0942435e73461d38 SHA-1: dd1986449e17033d5fe8a603885f944567b685c1 SHA-256: ec5615006374236021b1e80aa1af156279f81dc806e26f7aa548e2c3f859ab74
120 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link and a large number of embedded links, suggesting a link farm or phishing lure. The primary malicious URL identified is ttraff.ru, which is likely used to redirect users to further malicious content. The document body contains garbled text but also includes the primary malicious URL and several other URLs hosted on cdn.shopify.com, some of which are confirmed benign.

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/wb?keyword=videos%20de%20manualidades%20para%20halloween%20faciles
    • http://files.mainstreetkidsclub.com/uploads/1/3/0/7/130738889/duwarogidogotoligunu.pdf
    • http://files.eframesuk.com/uploads/1/3/0/8/130814124/8742938.pdf
    • http://files.resiliencegrowshere.org/uploads/1/3/0/7/130738620/1222310.pdf
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/vuvoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/1179/2286/files/annihilation_book.pdf
    • https://cdn.shopify.com/s/files/1/0436/1833/6925/files/xovipekixutigowuzomixi.pdf
    • https://cdn.shopify.com/s/files/1/0438/4037/2896/files/becoming_supernatural_dispenza.pdf
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/rogoligarezagexuxusosazo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8117/9037/files/23207134664.pdf
    • https://cdn.shopify.com/s/files/1/0432/5651/2680/files/84343733064.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wizivudid.pdf
    • https://cdn.shopify.com/s/files/1/0430/7373/2768/files/fancy_drake_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0433/9315/5235/files/1282862649.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_off000062ba.bin
68f329fb69993c0fbc5ff345c069180a950a33e19131137a14322c46700a21eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62BA 5452 bytes
font_01_sfnt_off00007529.bin
df174c28146045b18a37f85e3ba36d0baac22630a6e325fa24a91f30b90f3b8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7529 10844 bytes

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