Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb927fa410848717…

MALICIOUS

PDF

45.7 KB Created: 2020-08-20 22:02:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cf054979de2ae676ee22deccaa6809e SHA-1: 6556452f3cb54c46b9980f147b86423803f1b56e SHA-256: eb927fa410848717cc12fde415b44ba9122539b801196997bd29515f1ed5ba4f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a "certificate of compliance template". The primary malicious URL, https://ttraff.com/pify?keyword=certificate+of+compliance+template, is designed to redirect users to potentially harmful content. The presence of numerous shopify.com links suggests an attempt to blend in with legitimate content while masking the malicious intent.

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/pify?keyword=certificate+of+compliance+template
    • http://zodozeje.sterlingartsanddesign.com/uploads/1/3/1/4/131438177/5829915.pdf
    • https://cdn.shopify.com/s/files/1/0440/7338/6136/files/39137141976.pdf
    • https://cdn.shopify.com/s/files/1/0435/4483/8293/files/bdfl_full_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/5774/9917/files/89752084872.pdf
    • https://cdn.shopify.com/s/files/1/0433/4636/2533/files/prophylactic_therapy_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0435/6685/8408/files/3040922803.pdf
    • https://cdn.shopify.com/s/files/1/0431/5804/4827/files/63743805477.pdf
    • https://cdn.shopify.com/s/files/1/0444/7030/4935/files/delete_folder_on_github.pdf
    • https://cdn.shopify.com/s/files/1/0440/0149/3142/files/12139125184.pdf
    • https://cdn.shopify.com/s/files/1/0433/6238/6079/files/quran_bangla_translation.pdf
    • https://cdn.shopify.com/s/files/1/0432/8685/5840/files/sinuzajuzu.pdf
    • https://cdn.shopify.com/s/files/1/0435/1485/5583/files/disikawekuvunuwanoxidej.pdf
    • https://cdn.shopify.com/s/files/1/0436/8737/9094/files/graveyard_keeper_growth_enhancer.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_off000072e5.bin
559220da38834d8102122b52834cbf8d3357d53dec1981d68d7c13f061c6c956		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72E5 4888 bytes
font_01_sfnt_off0000836a.bin
07fa1a4620555b479858f6a0fa59db271d9bfe0f1c82ecd747ff3ef05013e3ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x836A 11620 bytes

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