Malicious PDF — malware analysis report

Static analysis result for SHA-256 c36c0f21c48901d3…

MALICIOUS

PDF

73.4 KB Created: 2020-08-17 13:20:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af4dcd96dafbbbcd716a6ca4b450871d SHA-1: eb69a7e107a078d14539e8ba9aff3e2bca74f49d SHA-256: c36c0f21c48901d334f8e99c498ef58ca5245a3450ced39f4c4faca7b9a84b68
150 Risk Score

Malware Insights

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

The PDF file was flagged as malicious due to the presence of a redirector link pointing to ttraff.com, which is associated with malicious activity. Additionally, the document contains a large number of external links, characteristic of a link farm, with the primary suspicious URL being https://ttraff.com/pify?keyword=conqueror%2527+s+blade+guide+glaive. The document body contains obfuscated text and the suspicious URL, suggesting an attempt to lure users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=conqueror%2527+s+blade+guide+glaive
    • http://files.wissamsouss.com/uploads/1/3/1/3/131384171/gatepurovuzar-lalofadu.pdf
    • http://files.haleybgreen.com/uploads/1/3/1/0/131070618/nuxodajegusogir_zafagosobe.pdf
    • https://cdn.shopify.com/s/files/1/0432/4586/3067/files/13574170078.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3444/files/85100745248.pdf
    • https://cdn.shopify.com/s/files/1/0432/3459/0882/files/lavoloremejazusupe.pdf
    • https://cdn.shopify.com/s/files/1/0435/1895/1576/files/fejokev.pdf
    • https://cdn.shopify.com/s/files/1/0434/1691/2023/files/goliwojiwov.pdf
    • https://cdn.shopify.com/s/files/1/0430/8015/5289/files/97972296812.pdf
    • https://cdn.shopify.com/s/files/1/0431/6073/1799/files/noxuberiboputekuwa.pdf
    • https://cdn.shopify.com/s/files/1/0437/2430/8630/files/acute_back_pain_stretches.pdf
    • https://cdn.shopify.com/s/files/1/0436/0234/6148/files/16738535381.pdf
    • https://cdn.shopify.com/s/files/1/0429/9928/3863/files/kobosevuxifilogonap.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/
    • https://cdn.shopify.com/s/files/1/04

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e386.bin
10cb70895e0dcfdb10831f4e46c0f360de5689d8007c6a76a377d9776f1c450d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE386 5256 bytes
font_01_sfnt_off0000f573.bin
006f8fb5eb7c9e5676b01dd115eb1015e058a0193740a337993edbae94323ad6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF573 10316 bytes

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