Malicious PDF — malware analysis report

Static analysis result for SHA-256 57879e97ad244a30…

MALICIOUS

PDF

41.1 KB Created: 2020-08-29 19:42:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ea3dea6338c1eafaf7d272c0683c255 SHA-1: b81aebed9ae03b8dab52c51e625bf05cc62da8d8 SHA-256: 57879e97ad244a308f217abd7a43815b4506b79a7e52977e9d9c140d5c877a0c
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is https://ttraff.me/wix?keyword=private+1+suspect. The document body contains obfuscated text and a reference to the malicious URL, indicating a social engineering attempt to lure the user to a potentially harmful site.

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=private+1+suspect
    • https://cdn.shopify.com/s/files/1/0428/9658/8967/files/karma_test_coverage_report.pdf
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/givufa.pdf
    • https://cdn.shopify.com/s/files/1/0429/2381/9164/files/jexikuboxovepenigi.pdf
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/kamiru.pdf
    • https://static.usrfiles.com/ugd/b8c837_6dec77c6d46b470ea3f56922e1c7dda0.pdf
    • https://static.usrfiles.com/ugd/b8c837_250efd67a331445ab6d6eff729935873.pdf
    • https://cdn.shopify.com/s/files/1/0431/6948/0866/files/always_on_edge_android.pdf
    • https://cdn.shopify.com/s/files/1/0428/8885/5718/files/c_b_i_ka_full_form.pdf
    • https://cdn.shopify.com/s/files/1/0432/6778/4864/files/pirud.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gamawogedeveredu.pdf
    • https://cdn.shopify.com/s/files/1/0438/8959/0427/files/xarewune.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_off00006399.bin
f9f7bfb003fd0100c777a7d987b68c3773488d68069b06e85580af74ea9039a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6399 5008 bytes
font_01_sfnt_off000074b7.bin
8762e1531ae29bdb9d2f7cb9c6bb67c93fe05e937999d64f5bb61df54f4febcf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74B7 10364 bytes

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