Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ee70bbf560ac1ac…

MALICIOUS

PDF

46.4 KB Created: 2020-08-29 20:42:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b2932bda65c5bf4dda1a7090ddd14106 SHA-1: 672968bbd32e14289f3124f8806a09394a3ba8e8 SHA-256: 8ee70bbf560ac1ace8386bf788223239f44ebcffc4443ec633934e1c2c5d8734
150 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, with the primary URL pointing to a known malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate a deliberate attempt to create a link farm. The ML classifier also strongly flagged this PDF as malicious. The presence of the URL https://ttraff.com/wix?keyword=pokemon+dark+rising+origins+evolution+list suggests a lure, possibly related to the 'pokemon' keyword, to entice users to click through to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=pokemon+dark+rising+origins+evolution+list
    • https://static.usrfiles.com/ugd/c3548c_17afaa7eef144e7c9e2ed8ef6c0864af.pdf
    • https://static.usrfiles.com/ugd/3b47cb_cee1c0bbba9746779815e9253b77a1f0.pdf
    • https://static.usrfiles.com/ugd/8cbfce_4bf3818f90c84904882ba2cccef9de48.pdf
    • https://static.usrfiles.com/ugd/b8c837_a0d0e11fb6cf43d29792f026b4d63c22.pdf
    • https://static.usrfiles.com/ugd/b916f4_e00886c4182047c09a0f4f7adfe83c2c.pdf
    • https://static.usrfiles.com/ugd/36f25b_dc786eac36b54e0496ea5cae235fc667.pdf
    • https://static.usrfiles.com/ugd/b8c837_e219497cafd84df0b95eed4f89dc739b.pdf
    • https://static.usrfiles.com/ugd/2ca09c_5b94b406ee424c348d99818a548bd2fc.pdf
    • https://cdn.shopify.com/s/files/1/0435/9805/3535/files/east_guidelines_sternal_fracture.pdf
    • https://cdn.shopify.com/s/files/1/0428/6893/2767/files/approbationsordnung_rzte.pdf
    • https://cdn.shopify.com/s/files/1/0433/7057/8070/files/kexugudajojujojifefidov.pdf
    • https://cdn.shopify.com/s/files/1/0427/7587/1654/files/jisogikavilubotupiloxeg.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6429/files/xokatibasivawizulada.pdf
    • https://static.usrfiles.com/ugd/b8c837_d38277e2a9b847398950cba23cbe59a6.pdf
    • https://static.usrfiles.com/ugd/b98abb_3ba1998f4cd14f589b8a439bea01e897.pdf
    • https://static.usrfiles.com/ugd/b8c837_49723570578744938ae893b0c9c2b14f.pdf
    • https://static.usrfiles.com/ugd/b4609a_9d283d7e96c84367aee9215d7b587e17.pdf
    • https://static.usrfiles.com/ugd/856cea_1395843d7bdb47fd81bd06fbf2457330.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_off00007652.bin
5c7466c96ef1a3ebb8ca21ebd0abeff47af0926f3118f2b1b9902e70f46d6c9d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7652 5268 bytes
font_01_sfnt_off0000882a.bin
a34439e7fce664336aceeba6e747c580ab1250600e50f446de4a51d1230e6e70
pdf-font-stream PDF embedded font (sfnt) at offset 0x882A 10636 bytes