Malicious PDF — malware analysis report

Static analysis result for SHA-256 969f7f699f92e62f…

MALICIOUS

PDF

42.5 KB Created: 2020-08-16 14:55:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1760cfd3a55d48e5d5c195d8a91fced SHA-1: 04ef3d58a294a494c98fab8854f69135d51b3c36 SHA-256: 969f7f699f92e62f69224bbc99c996e8c3a5efaa12d3043799374cc97f92a0b3
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF file contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. It also exhibits a PDF link farm heuristic, indicating an attempt to distribute multiple links. The ML classifier strongly flagged this PDF as malicious. The primary malicious URL identified is https://ttraff.com/pify?keyword=abbreviated+form+of+continued, which likely serves as a lure 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=abbreviated+form+of+continued
    • http://viwipeser.bwanasafaris.com/uploads/1/3/1/8/131856372/jowukaripanan.pdf
    • https://cdn.shopify.com/s/files/1/0431/3209/2573/files/29262516372.pdf
    • https://cdn.shopify.com/s/files/1/0430/4633/8709/files/15959857081.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojedisubeweful.pdf
    • https://cdn.shopify.com/s/files/1/0434/8752/7078/files/16258915741.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/panagam.pdf
    • https://cdn.shopify.com/s/files/1/0431/6086/2882/files/vaxuzopufotisowawevor.pdf
    • https://cdn.shopify.com/s/files/1/0430/9454/0452/files/jlo_texts_leo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6481/8838/files/kukurid.pdf
    • https://cdn.shopify.com/s/files/1/0435/8999/2616/files/approaches_to_international_compensation.pdf
    • https://cdn.shopify.com/s/files/1/0432/6660/5219/files/23882122464.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_off00005f23.bin
c6ec9cbb52ae621f128e070acc2f747a34e89329319f031e8553fb038ae4c58a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F23 5148 bytes
font_01_sfnt_off0000708f.bin
0618edc295173a3a0ba387b35e008b5b083b4a4c480e1776b3db9a3fa56ea600		 pdf-font-stream PDF embedded font (sfnt) at offset 0x708F 13536 bytes

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