Malicious PDF — malware analysis report

Static analysis result for SHA-256 49881f99beeb49d2…

MALICIOUS

PDF

43.2 KB Created: 2020-08-15 23:47:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57a5aa99f8daec1914b18950b58768a7 SHA-1: c590510b01844b0710fc730295f5cce8dd362d59 SHA-256: 49881f99beeb49d2732a6283c6144fe1739092dba539e8f6ab5967cda4ae5a3d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic firing indicates that the PDF links to a known malicious redirector infrastructure at ttraff.com. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious content. 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.com/wb?keyword=oops%20concepts%20interview%20questions%20and%20answers%20with%20examples%20pdf
    • http://pubozuvap.milliedeephotography.com/uploads/1/3/1/3/131380600/7ce157cc.pdf
    • http://redipexun.jeanependziwol.com/uploads/1/3/0/7/130775350/xomuwezomir-vukidazuti-tegazoxigonare-xolijimadakomu.pdf
    • http://kadelasub.sophiehacker.com/uploads/1/3/2/8/132814989/guzakitimejilosobi.pdf
    • http://files.justinpearsongalleries.com/uploads/1/3/2/6/132695306/4638541.pdf
    • http://sedoxex.elksfairwayfoundation.org/uploads/1/3/1/3/131398125/8157139.pdf
    • https://cdn.shopify.com/s/files/1/0432/6935/7728/files/pilukafavewufudutup.pdf
    • https://cdn.shopify.com/s/files/1/0432/7217/5784/files/78218910513.pdf
    • https://cdn.shopify.com/s/files/1/0431/6925/1492/files/76877669723.pdf
    • https://cdn.shopify.com/s/files/1/0438/6163/9318/files/36677508645.pdf
    • https://cdn.shopify.com/s/files/1/0432/5684/0354/files/tomcat_redirect_http_to_https.pdf
    • https://cdn.shopify.com/s/files/1/0431/6135/4389/files/jiwipulobozapomifasijo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6372/8545/files/84899577744.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/sesibogojapiwirubidofema.pdf
    • https://cdn.shopify.com/s/files/1/0431/3032/3101/files/rinizogigoxareru.pdf
    • https://cdn.shopify.com/s/files/1/0432/7306/0520/files/48949566246.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_off0000691d.bin
f46eb88038eb60d4e2a65503b633e0e23208ea660dc7d8b68cb2312bf1bd101c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x691D 5768 bytes
font_01_sfnt_off00007c9a.bin
d755b0ad07ae9d9cd0b4f4903d7c963a9d774dca95a7e1dbe0e67899f204170e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C9A 10060 bytes

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