Malicious PDF — malware analysis report

Static analysis result for SHA-256 da7d2b0257f3083f…

MALICIOUS

PDF

43.0 KB Created: 2020-09-03 08:39:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe65922f9a4624127da8e6ba690b5fad SHA-1: 5c53537ed36cb221131f56f8e4a35c38e2d4fdd3 SHA-256: da7d2b0257f3083fd5fa316f0c38500c095abdec332599771a27e31bfe94c6a4
128 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a significant portion of which point to a link farm designed for SEO manipulation. One prominent link, 'https://ttraff.com/wix?keyword=printable+knife+making+templates', is identified as a malicious redirector. This suggests the document's primary purpose is to direct users to malicious sites, likely for further exploitation or phishing.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=printable+knife+making+templates
    • https://static.usrfiles.com/ugd/3f0e57_98ef9149682144468e55dca6a66ed2f0.pdf
    • https://static.usrfiles.com/ugd/ad2ade_c1f3f8baa8e94ecc94c06bb90eaf171b.pdf
    • https://static.usrfiles.com/ugd/9ea9b6_3b6c20eafa21499b86277cb532ee82c6.pdf
    • https://static.usrfiles.com/ugd/3f4b99_61f8e1824d0a43f0801aaddf0ac3bce4.pdf
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/bvms_7._5_viewer.pdf
    • https://cdn.shopify.com/s/files/1/0449/8853/0846/files/60145450342.pdf
    • https://cdn.shopify.com/s/files/1/0437/9967/5040/files/5396604041.pdf
    • https://cdn.shopify.com/s/files/1/0434/8359/4917/files/56447737668.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45927795399.pdf
    • https://cdn.shopify.com/s/files/1/0437/2499/6773/files/xavososewowidobetoginiwog.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/69476260374.pdf
    • https://cdn.shopify.com/s/files/1/0428/1748/7011/files/17221802947.pdf
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/85441354329.pdf
    • https://cdn.shopify.com/s/files/1/0448/1178/0257/files/dadumo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3330/4993/files/pologawizarodusujebilor.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_off00006a09.bin
0c7ca48184c6ca118407bcbd08f0b89d9c14c8e14961fb0d9b97323fcaadf6de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A09 5428 bytes
font_01_sfnt_off00007c66.bin
7f8d028c2576fda6233e1530c4cb441b9eb33a25aa72894bcdf8e985b4282a44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C66 10112 bytes

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