Malicious PDF — malware analysis report

Static analysis result for SHA-256 4925cac87119128b…

MALICIOUS

PDF

53.6 KB Created: 2020-08-03 03:34:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 580515612cc09ff16ecc69eaa04115d5 SHA-1: d10b1a7c1514cd7dc2e20d6ad946ac4016c9d3cd SHA-256: 4925cac87119128ba85baf606c75dcba59968b9d64bd380657adc94489c29933
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=a+practical+guide+to+racism+pdf', likely leads to a malicious site. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to disguise the malicious intent. No scripts were extracted from this sample.

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.cc/pify?keyword=a+practical+guide+to+racism+pdf
    • http://files.carriebburnscyrenesmrgc.com/uploads/1/3/0/9/130969645/a58d67ac42ea7.pdf
    • http://files.neurodivergenceatl.org/uploads/1/3/2/7/132740204/4322864.pdf
    • http://files.comforttrainer.net/uploads/1/3/2/6/132681002/4312007.pdf
    • http://files.awdt.org/uploads/1/3/1/8/131856949/3b876e.pdf
    • https://cdn.shopify.com/s/files/1/0430/8844/5591/files/92430225902.pdf
    • https://cdn.shopify.com/s/files/1/0436/3547/4590/files/gazodomareralemudoba.pdf
    • https://cdn.shopify.com/s/files/1/0430/9093/5969/files/42213614574.pdf
    • https://cdn.shopify.com/s/files/1/0429/2280/3366/files/91908894668.pdf
    • https://cdn.shopify.com/s/files/1/0435/9480/9512/files/79298436621.pdf
    • https://cdn.shopify.com/s/files/1/0434/1760/0156/files/dodakizatozevi.pdf
    • https://cdn.shopify.com/s/files/1/0428/1381/6995/files/ruwupavudofalazu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63912397784.pdf
    • https://cdn.shopify.com/s/files/1/0433/7300/2902/files/lemonumabadumujekuvupo.pdf
    • https://cdn.shopify.com/s/files/1/0436/9183/5545/files/koxanetonutuxilesafi.pdf
    • https://cdn.shopify.com/s/files/1/0435/1783/7467/files/zeloxeruzijugefaxizarum.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wakorijupomimenupe.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e89.bin
87bebca099a62754ce0e4d8e1a418630a0fe658ddeaccc1416bf6ee90c341ac9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E89 5240 bytes
font_01_sfnt_off00008059.bin
71af36f381a5e6543b5463c891cf612fff04e3185700ec8a09069b173f33ac36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8059 10596 bytes
font_02_sfnt_off0000a4c7.bin
49230a07578f2a0b108554ff1d47b1cb24b8f8081254bad551c0ce72ea05e0a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA4C7 16544 bytes
font_03_sfnt_off0000bb0a.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB0A 4324 bytes

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