Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b38582970d46571…

MALICIOUS

PDF

39.5 KB Created: 2020-09-03 00:31:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72abbe42f9b05ee3313927fdfb2137ab SHA-1: ab28a7afb29ed771f685912967e2cebd998ce768 SHA-256: 2b38582970d46571cb91a869ace0dbcc6d17497260692b2fc20b4ced60a07326
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=chest+guidelines+afib'. This indicates a phishing or scam attempt, likely to redirect the user to a malicious site. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic to obscure the malicious redirector. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for the attack pattern.

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.cc/wix?keyword=chest+guidelines+afib
    • https://cdn.shopify.com/s/files/1/0437/8794/4094/files/majirufojobegezu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5992/9503/files/sojuxiporo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4493/7623/files/army_levels_of_leadership.pdf
    • https://static.usrfiles.com/ugd/e7e4a0_24498b798bba4c1d962969453df0cfd1.pdf
    • https://static.usrfiles.com/ugd/516793_d2c361db5bc34bccb95b1f244fb6e97d.pdf
    • https://static.usrfiles.com/ugd/6924eb_e77aa93752984ecda26507923b29fb85.pdf
    • https://static.usrfiles.com/ugd/891219_05be07362e454936adb0047c0143e000.pdf
    • https://static.usrfiles.com/ugd/89c6ad_b5c9a1c1ff464670a3f855ebe8406592.pdf
    • https://static.usrfiles.com/ugd/4725f1_552f86bc53634d138478d5519e132a11.pdf
    • https://static.usrfiles.com/ugd/23e9be_344f388a2582493397fd2572e654722f.pdf
    • https://static.usrfiles.com/ugd/c12414_b831552268ea4a129eb6988074f745ef.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_off00005c12.bin
f2e688632407f5b348181af47416c96d593fc78416e0137f6a90ab17b360e2e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C12 5116 bytes
font_01_sfnt_off00006d72.bin
0418445a6d2e8eb83b1ed48d3c0ccc531e37ce9acd5d79f685efd674ca046c70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D72 11060 bytes

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