Malicious PDF — malware analysis report

Static analysis result for SHA-256 486f0fbe86ca4033…

MALICIOUS

PDF

39.5 KB Created: 2020-09-05 08:15:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 432622770e952e8b117eaca00c8d7fc8 SHA-1: fad373f14bec8849e4ae69f503d971a04b599b37 SHA-256: 486f0fbe86ca4033a78592879f4d265bef2314c7010a4b51a101c985cb82c8b1
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.link/wix?keyword=merriam-+webster%2527+s+elementary+dictionary+pdf', is designed to masquerade as a legitimate resource to trick users into clicking it. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF documents, likely for SEO manipulation or to host further malicious content. The primary intent appears to be redirecting the user to a malicious site via the initial link.

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.link/wix?keyword=merriam-+webster%2527+s+elementary+dictionary+pdf
    • https://static.usrfiles.com/ugd/3ab5ed_46757da03c084911971a25e40e71924a.pdf
    • https://static.usrfiles.com/ugd/51c472_f8b60bab567840dba57b47a15d770158.pdf
    • https://static.usrfiles.com/ugd/91e123_fc25cf3bdcfb4fc7beb70aef8b9e9f07.pdf
    • https://static.usrfiles.com/ugd/77941b_9d2b45f23c6947ce8dec57660f1a813a.pdf
    • https://cdn.shopify.com/s/files/1/0438/9273/6155/files/59753252595.pdf
    • https://cdn.shopify.com/s/files/1/0435/5283/3695/files/dovemibel.pdf
    • https://cdn.shopify.com/s/files/1/0430/4555/2277/files/rivofibilasuxudomam.pdf
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/zodiwatimawizijelosujuzar.pdf
    • https://cdn.shopify.com/s/files/1/0431/3058/5250/files/zajepuxekazelopove.pdf
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/18222213963.pdf
    • https://cdn.shopify.com/s/files/1/0429/2041/1289/files/bulletproof_nothing_to_lose.pdf
    • https://cdn.shopify.com/s/files/1/0434/9424/4516/files/jajetodogifuwipogalusug.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_off00005aea.bin
7daa750bb43e714398331eb60822fa4b88add472f554f45599377fdacb744cf9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AEA 5708 bytes
font_01_sfnt_off00006e70.bin
cff0c5300b28e97f82581ec3d7b69a277193c58f4d45ae84937173b206c964b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E70 10196 bytes

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