Malicious PDF — malware analysis report

Static analysis result for SHA-256 38c0caef796a68ed…

MALICIOUS

PDF

47.5 KB Created: 2020-08-08 11:25:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49a7e9ca9fae28f67e85ba933e6e64f1 SHA-1: eb6162583d36757a438421fce8ddb51d061e9cbe SHA-256: 38c0caef796a68ed001cae7f3be36c1c991e7856c9d6cde499e086460a4310c6
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=physiology+of+eye+pdf'. This indicates a likely phishing or malware distribution attempt. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF files hosted on Shopify, suggesting a link farm strategy to obscure the malicious destination. No scripts were extracted, and the PDF structure itself does not indicate specific exploit techniques beyond redirection.

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=physiology+of+eye+pdf
    • http://files.gvphoto.org/uploads/1/3/1/4/131454373/893e12ec430442.pdf
    • http://files.marrymeinlefkas.com/uploads/1/3/2/6/132695832/1456787.pdf
    • http://files.abijoes.co.uk/uploads/1/3/0/7/130738596/8c046dd72.pdf
    • https://cdn.shopify.com/s/files/1/0433/2175/3758/files/xemuwawimavijofaki.pdf
    • https://cdn.shopify.com/s/files/1/0429/7595/3049/files/padi_open_water_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/7516/5594/files/15171484428.pdf
    • https://cdn.shopify.com/s/files/1/0430/9529/4105/files/unique_global_imports_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/5236520766.pdf
    • https://cdn.shopify.com/s/files/1/0427/7927/9527/files/8945060764.pdf
    • https://cdn.shopify.com/s/files/1/0430/4352/0665/files/volizixakor.pdf
    • https://cdn.shopify.com/s/files/1/0432/7941/7504/files/49535964906.pdf
    • https://cdn.shopify.com/s/files/1/0434/6806/2872/files/samogikaniludewevawosun.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/ackermann_steering_geometry.pdf
    • https://cdn.shopify.com/s/files/1/0435/8170/2301/files/76856033697.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070d4.bin
22f57eec5798a24a8196ab3bdaac45109e4e0217507b62576538b3511dbf594a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70D4 4704 bytes
font_01_sfnt_off000080e0.bin
c47575709f1a2d15fc1e9dbfa6ae0c1330c245e7223eb47860e60f17b4e7d02f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80E0 10096 bytes
font_02_sfnt_off0000a351.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA351 4324 bytes

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