Malicious PDF — malware analysis report

Static analysis result for SHA-256 3274154cedd69cea…

MALICIOUS

PDF

46.1 KB Created: 2020-08-31 02:38:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f006a6d965180ba8288303d605d4e60 SHA-1: 430e87ef0545ac382aea067d1ad08171a9cd99be SHA-256: 3274154cedd69cea7369cd7dba3d56510750f5fedaaddc0f14bf3897b87a5cc4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDF files hosted on Shopify and other platforms, suggesting a link farm or SEO poisoning tactic to attract victims. 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/wix?keyword=case+in+point+10th+edition+pdf
    • https://cdn.shopify.com/s/files/1/0447/5263/4005/files/besos_de_chocolate.pdf
    • https://cdn.shopify.com/s/files/1/0435/5280/0929/files/fed_up_movie_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/0180/6997/files/91647031651.pdf
    • https://cdn.shopify.com/s/files/1/0435/0892/4568/files/zodijabafepifotiloseka.pdf
    • https://cdn.shopify.com/s/files/1/0463/7858/2171/files/maradona_full_movie_hd.pdf
    • https://cdn.shopify.com/s/files/1/0431/0512/4503/files/witchcraft_for_beginners.pdf
    • https://static.usrfiles.com/ugd/6a7407_540788c52e844a01bf1e702320fe3ed8.pdf
    • https://static.usrfiles.com/ugd/b8c837_5444f467fc5a44e5adaaa0d161119b7f.pdf
    • https://static.usrfiles.com/ugd/a18aa6_688d2be674a04becb3f2c0a56877f47e.pdf
    • https://static.usrfiles.com/ugd/b8c837_b5d4a7022c8449feb37ebda458bdbc95.pdf
    • https://cdn.shopify.com/s/files/1/0431/7655/8746/files/43196998167.pdf
    • https://cdn.shopify.com/s/files/1/0432/4022/6984/files/10343567430.pdf
    • https://cdn.shopify.com/s/files/1/0427/9356/6364/files/numomenalumi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9612/9192/files/bopajabadewofoti.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_off000076e7.bin
c8ea638d4546816d6b98141ea243dd3a3e00474135d78b3363f378105ef55c41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76E7 5100 bytes
font_01_sfnt_off0000883b.bin
9178e9a9661fd4e11e67a9992eeecf258b8f07ec74d2f18cd6d017283fb824a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x883B 10468 bytes

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