Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf40c8cd1a6d020d…

MALICIOUS

PDF

40.6 KB Created: 2020-08-11 02:54:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6107bc5e90fa5f88b3e916f79351652b SHA-1: b138c9471992a6c45a0f84b2f6c94cb18965d55e SHA-256: cf40c8cd1a6d020db17ea84bc884ae96a94d8d9f2e433f1f1b721f3c0bfb4ee3
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.cc/wb?keyword=soundcraft%20lx7%20manual'. Additionally, it features a PDF link farm heuristic, indicating a large number of outbound links, many hosted on Shopify. The document body, though partially garbled, contains references to the search term and the malicious URL, reinforcing the lure. The presence of multiple embedded URLs, including the malicious redirector, suggests a phishing or malware distribution attempt.

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/wb?keyword=soundcraft%20lx7%20manual
    • http://files.katyhawkinsyoga.com/uploads/1/3/0/7/130775280/wixobapag_taxem.pdf
    • http://files.ontariochristianchoir.com/uploads/1/3/0/7/130739146/guxoratu-lapilevajemu-sejekamujajo.pdf
    • http://files.rachelsvineyardtucson.org/uploads/1/3/1/3/131383664/0714680.pdf
    • https://cdn.shopify.com/s/files/1/0431/2521/1296/files/31734919246.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/rifujosuzoxasefukepaxukex.pdf
    • https://cdn.shopify.com/s/files/1/0432/5664/3739/files/36943089860.pdf
    • https://cdn.shopify.com/s/files/1/0428/2155/0247/files/15163112733.pdf
    • https://cdn.shopify.com/s/files/1/0435/1400/3610/files/jewel_quest_3.pdf
    • https://cdn.shopify.com/s/files/1/0429/8034/3961/files/51028516601.pdf
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/ecce_romani_1_teacher_s_edition.pdf
    • https://cdn.shopify.com/s/files/1/0433/1382/3909/files/general_building_construction_book.pdf
    • https://cdn.shopify.com/s/files/1/0429/2539/2035/files/83671423603.pdf
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/anguttara_nikaya_download.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_off000054c6.bin
44d9e574c01a171d284749310137a1456d00267f5181ec44324bd3ff77a7c2f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54C6 4956 bytes
font_01_sfnt_off0000658a.bin
90f1660df7158cad2272037cbe4092e364221ed0a87e8c711175af31a8ecdf56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x658A 10080 bytes
font_02_sfnt_off000087c9.bin
8405bb6ca9a6fb718a2e910e1cdde4d74ac2122cab0061dc5f772322db9c7ccd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87C9 4324 bytes

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