Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2679d5c46e5c47a…

MALICIOUS

PDF

41.4 KB Created: 2020-08-30 16:15:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7499e69b45fc9fb2bd214ca920e8c735 SHA-1: 6420aee55951d186b4ff5be9f2adaebe390a0582 SHA-256: a2679d5c46e5c47a8e64620e4c95ed3d0614674590ae7fb16d96d41e5f1a8f55
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/wix?keyword=snob+appeal+in+advertising'. This URL is likely used to redirect the user to a malicious site. The document also contains a large number of embedded links, many pointing to shopify.com, which is flagged as a PDF link farm. The primary intent appears to be social engineering through a deceptive link within the document body.

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=snob+appeal+in+advertising
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/75735336105.pdf
    • https://cdn.shopify.com/s/files/1/0431/4136/5922/files/xenugifuvugonolivero.pdf
    • https://cdn.shopify.com/s/files/1/0434/1995/9463/files/fikelutobeton.pdf
    • https://cdn.shopify.com/s/files/1/0435/8658/4733/files/negakaxipi.pdf
    • https://cdn.shopify.com/s/files/1/0433/4593/6534/files/fowomijatevefo.pdf
    • https://cdn.shopify.com/s/files/1/0438/9063/9016/files/how_to_unfollow_a_group_on_facebook.pdf
    • https://static.usrfiles.com/ugd/40512e_d469b3df55264401a5ffc001d11a3dd8.pdf
    • https://static.usrfiles.com/ugd/b8c837_189ad59eae1f4411ac9b7abda0c0600d.pdf
    • https://static.usrfiles.com/ugd/f459ea_ea2b22a27eaf42b4922354e098b45fa6.pdf
    • https://cdn.shopify.com/s/files/1/0437/6834/8830/files/15829068975.pdf
    • https://cdn.shopify.com/s/files/1/0432/5713/5257/files/80792123457.pdf
    • https://cdn.shopify.com/s/files/1/0431/1243/1770/files/tezanozotetuxugidi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xoperesotojazi.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_off000064b5.bin
6deb61b09ae367ddec562d135968182547cd918eedb2583b57ec22c82199ef4a
pdf-font-stream PDF embedded font (sfnt) at offset 0x64B5 5428 bytes
font_01_sfnt_off00007732.bin
dcbec957514e8ef6e7b6cf622869c2f05b3dc7f2be9dcc3d53d17e56644813e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7732 10088 bytes