Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cfdc96ea4208d3f…

MALICIOUS

PDF

41.1 KB Created: 2020-08-24 12:19:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7863bfdd3ea6a0a9efe49c3ca6a4cbe0 SHA-1: 37dd39d550e3a0974d9f4eecedfba7bd336d51d2 SHA-256: 2cfdc96ea4208d3f10dc460b0acc50bf7741a105abd513c58186537ed857e9e7
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, characteristic of a link farm. One of these links, 'https://ttraff.cc/pify?keyword=amelie+sheet+music+pdf+piano', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Amelie sheet music' and the PDF creation tool 'wkhtmltopdf', suggesting a lure to disguise the malicious intent. The primary attack pattern involves redirecting users through malicious infrastructure.

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=amelie+sheet+music+pdf+piano
    • http://files.sincerelypresley.com/uploads/1/3/1/4/131438439/f79a70519b6.pdf
    • https://cdn.shopify.com/s/files/1/0434/8218/5893/files/walmart_supply_chain_management_book.pdf
    • https://cdn.shopify.com/s/files/1/0435/2219/5608/files/virefuvegapuzedupitet.pdf
    • https://cdn.shopify.com/s/files/1/0437/7382/1082/files/2847758824.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fasexerogetotano.pdf
    • https://cdn.shopify.com/s/files/1/0460/9363/1652/files/bleacher_report_nfl_mock_draft_2020.pdf
    • https://cdn.shopify.com/s/files/1/0438/0013/3793/files/discord_stream_no_audio.pdf
    • https://cdn.shopify.com/s/files/1/0438/3762/0386/files/68887687836.pdf
    • https://cdn.shopify.com/s/files/1/0462/6684/3290/files/95406251492.pdf
    • https://cdn.shopify.com/s/files/1/0439/0138/6920/files/28280073797.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_off000056ee.bin
e4777ae2cb638758175579b5b6224575313380568bf7fb22e34ee610eceac714		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56EE 5288 bytes
font_01_sfnt_off000068ca.bin
9ecf4206ca4707de1aa0774645c8440b7f41fdf4a1285705e2f71567d8c5f80f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68CA 15216 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.