Malicious PDF — malware analysis report

Static analysis result for SHA-256 a75e985737f3245d…

MALICIOUS

PDF

32.5 KB Created: 2020-08-30 08:47:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b6e1642ebb4f180959d526924ccfd46 SHA-1: 2c0bea79515da269c0321725758d887439e7e5e2 SHA-256: a75e985737f3245d32d5a300074ae02196cf196d33eb6e231434d2e4b4781840
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This redirector likely leads to further malicious content, as indicated by the presence of a PDF link farm heuristic. The document body contains obfuscated text and a URL that mirrors the redirector, suggesting an attempt to disguise or embed malicious links within the document structure. The primary purpose appears to be directing users to external, potentially malicious, resources.

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/wix?keyword=genel+kimya+petrucci
    • https://cdn.shopify.com/s/files/1/0431/1095/7210/files/gabexukekawixoxokel.pdf
    • https://cdn.shopify.com/s/files/1/0435/4893/4295/files/wexujidixojetero.pdf
    • https://cdn.shopify.com/s/files/1/0432/9553/9368/files/difference_between_nsdl_and_cdsl.pdf
    • https://cdn.shopify.com/s/files/1/0437/0753/1414/files/69522680936.pdf
    • https://cdn.shopify.com/s/files/1/0431/5352/2850/files/guvedavutamefaliripopexop.pdf
    • https://cdn.shopify.com/s/files/1/0429/6150/2362/files/lomumixifurufi.pdf
    • https://static.usrfiles.com/ugd/2e4eb4_0564b5b087704b41a71fcc2a4412e257.pdf
    • https://static.usrfiles.com/ugd/b8c837_d3faba924c5144b0899bbc2da6b149b6.pdf
    • https://static.usrfiles.com/ugd/b8c837_a204aadcb32040fea2a3631dabc818db.pdf
    • https://static.usrfiles.com/ugd/b8c837_a6fa92e436784cf9956ea7197c1b1fa1.pdf
    • https://static.usrfiles.com/ugd/cac9e4_178545f1e80c4086a43e6fff6d6ec661.pdf
    • https://static.usrfiles.com/ugd/a01749_ea19fc4e8b224ddfb2c97b100ca84d2e.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_off00004204.bin
ba722be3fb915d4248c232230fb697681a83edc42eee6552a9101df8b8d71d74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4204 5100 bytes
font_01_sfnt_off00005350.bin
3491ef37a486d484dd4afa0c9b65a4b9c1f322411a80fbb1348c65325613f111		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5350 10744 bytes

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