Malicious PDF — malware analysis report

Static analysis result for SHA-256 c972a4568a68888c…

MALICIOUS

PDF

42.8 KB Created: 2020-08-31 06:12:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a394a977729c8154b96d69868117ad35 SHA-1: 068ce9dde5524e75bded836ab03c073a0724f699 SHA-256: c972a4568a68888c2db4fe8fc5ef224a8af5a33ea56101cfd1e195a31a6e69f2
128 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'church membership information form template' and a URL that aligns with the malicious redirector finding. The presence of a 'download button' heuristic further supports a lure-based attack pattern.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=church+membership+information+form+template
    • https://static.usrfiles.com/ugd/10e3af_373645ad1ff54e4d9ce3fd41101b7999.pdf
    • https://static.usrfiles.com/ugd/173616_018b3a3560c448d2957f19da623d5b67.pdf
    • https://static.usrfiles.com/ugd/b8c837_550b66e1cead48ff8e3451b63a69ed27.pdf
    • https://static.usrfiles.com/ugd/97493d_b1f317f802f44fd4b78f350b542cc4f6.pdf
    • https://static.usrfiles.com/ugd/07625c_bc312a063d1a452183f40d259ee890a8.pdf
    • https://cdn.shopify.com/s/files/1/0437/6051/7274/files/votomowi.pdf
    • https://cdn.shopify.com/s/files/1/0435/3989/0327/files/healthy_smoothie_recipes_for_weight_loss.pdf
    • https://cdn.shopify.com/s/files/1/0432/3026/5511/files/27185609201.pdf
    • https://static.usrfiles.com/ugd/65b209_0bb06a3c1c5749a4839cf8611c06d26a.pdf
    • https://static.usrfiles.com/ugd/0d089b_8d1ada16a1554e55a050923b826d3b61.pdf
    • https://static.usrfiles.com/ugd/b8bbd7_7574eb130fda4fa78f8aec9f93fcf7c0.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_off0000691c.bin
783b7acd4ecd7231a36fe381a8dc6c5660c2c49162f8ab872dcabf0daaeddb02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x691C 5300 bytes
font_01_sfnt_off00007af1.bin
ce6c0e0517be4182fb73afbfbfaba6de1e0a14eb743c6bb60f6eaa22c5204a88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF1 10260 bytes

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