Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c2f08f5b7a1249d…

MALICIOUS

PDF

45.4 KB Created: 2020-09-09 00:07:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83c66ba9ee4cf5765b688bf7fe69e9a7 SHA-1: b0b3b79cae3d538343903ad22bfe1bfd1da62eef SHA-256: 4c2f08f5b7a1249d4ffc1c84cf5984bd6ed98d9cc3094959d8b5aa1cf7c7a720
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=gerlach+report+aktuell'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. The PDF also contains a large number of external links, many hosted on static.usrfiles.com, which is flagged as a link farm.

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.me/wix?keyword=gerlach+report+aktuell
    • https://static.usrfiles.com/ugd/d5415a_10c71a76aed848d28b3275d452c6a957.pdf
    • https://static.usrfiles.com/ugd/b1277d_fb52ec10575e495c9f5846e0960a99f4.pdf
    • https://static.usrfiles.com/ugd/dc98cc_e1959391996a45499327e5387763e7fd.pdf
    • https://static.usrfiles.com/ugd/8ade13_5b9a537a9d774446af9112b3d720625f.pdf
    • https://static.usrfiles.com/ugd/b8c837_c336f6b72fef46c2bcc4e53015fc24bc.pdf
    • https://cdn.shopify.com/s/files/1/0432/3367/3380/files/bin_sachivalay_paper_set_2019.pdf
    • https://cdn.shopify.com/s/files/1/0437/7437/8142/files/breakwater_construction.pdf
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/taxurigidurokakeginuwuro.pdf
    • https://cdn.shopify.com/s/files/1/0431/5188/4449/files/24171106756.pdf
    • https://cdn.shopify.com/s/files/1/0433/0546/8068/files/64704962114.pdf
    • https://cdn.shopify.com/s/files/1/0437/9059/8305/files/metal_carbene.pdf
    • https://static.usrfiles.com/ugd/9df9d6_5cef914a39964b5fb9dfd504fe0d3b2e.pdf
    • https://static.usrfiles.com/ugd/c8a981_8e27a95f415f4120bc18c0d9bd8789c9.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_off0000706e.bin
8cbc5f4f3bad4f149b2f77f5c155dbc0af6f077d15c15b38f47f56a6842f0600		 pdf-font-stream PDF embedded font (sfnt) at offset 0x706E 4936 bytes
font_01_sfnt_off00008133.bin
d61e15106a274df5e6ba0648d41cd601a52f4c44fcef797d4b35e2374b98f886		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8133 11764 bytes

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