Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd2eca7012eb6db5…

MALICIOUS

PDF

39.6 KB Created: 2020-09-13 00:39:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffa19f0f19b9b710b891844039d50b7d SHA-1: 1032e8981130e63b809b81502861f324c08df36b SHA-256: cd2eca7012eb6db5499f5f7fac95780eec5790a6d63223ebbc9ae859fec72d12
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=neighbors+gutter+drains+on+my+property'. The document body, though heavily obfuscated, contains this URL and also references a 'design_brief_template_for_client.pdf' hosted on Shopify. This suggests a lure to download a malicious file or visit a malicious site under the guise of a legitimate document. No scripts were extracted from this sample.

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.club/wix?keyword=neighbors+gutter+drains+on+my+property
    • https://cdn.shopify.com/s/files/1/0438/9991/2344/files/design_brief_template_for_client.pdf
    • https://cdn.shopify.com/s/files/1/0431/0469/8535/files/house_expenses_excel_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/8414/5049/files/gokagib.pdf
    • https://cdn.shopify.com/s/files/1/0434/2392/4376/files/90255794034.pdf
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/85083375991.pdf
    • https://cdn.shopify.com/s/files/1/0437/0812/1242/files/24105043958.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51106899687.pdf
    • https://cdn.shopify.com/s/files/1/0432/7574/7483/files/45289541337.pdf
    • https://cdn.shopify.com/s/files/1/0432/5123/7022/files/siemens_addressable_fire_alarm_system.pdf
    • https://cdn.shopify.com/s/files/1/0428/8380/9439/files/ck2_holy_fury_bloodlines_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/8621/6344/files/bebutusunopunuwabosir.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_off00005c7c.bin
5f4d267a9ade446c5e1d99d694a957630ed7045d86051ccf5e9e97f8624de1cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7C 5552 bytes
font_01_sfnt_off00006f39.bin
8beed2292400368fa0bf393da470ca0dade328ac070bc2e319ef64e451ceea4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F39 10348 bytes

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