Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1ed65eec58972c6…

MALICIOUS

PDF

42.9 KB Created: 2020-08-01 23:52:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b08148af3e5f84f89756197e8ce2e80 SHA-1: dd685ed043099f55c83abeb4b7d17e544458c57b SHA-256: c1ed65eec58972c609a9cd8a305aad2c8d6e1aeeee152adcdd90a88e616b8ce9
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify-hosted PDF files, which is indicative of a link farm. One of these links, 'https://ttraff.ru/pify?keyword=ccrn+practice+questions+pdf', is flagged as a malicious redirector. This suggests the document is part of a campaign to lure users to malicious sites, likely for phishing or malware distribution.

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.ru/pify?keyword=ccrn+practice+questions+pdf
    • http://files.seattlefamilychurch.org/uploads/1/3/0/8/130874075/e6f50ac5f1.pdf
    • http://files.uptownsheep.com/uploads/1/3/0/7/130775655/mavujuwubiwov-sunibusonaba-logajixafiletav.pdf
    • http://files.mayhemturbo.com/uploads/1/3/1/8/131856071/zadezimerige.pdf
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/39895950624.pdf
    • https://cdn.shopify.com/s/files/1/0431/3926/8765/files/sodin.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bumagigefabap.pdf
    • https://cdn.shopify.com/s/files/1/0433/8365/2506/files/zezefopawapiluwibuluva.pdf
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/nejagukasez.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/88890662392.pdf
    • https://cdn.shopify.com/s/files/1/0431/7357/6865/files/tametanexavawo.pdf
    • https://cdn.shopify.com/s/files/1/0433/7201/9877/files/zuzikavisibaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/jazodapesisetonodod.pdf
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/bofejufutuzuvo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/botabekemo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4193/8856/files/rorojapawom.pdf
    • https://cdn.shopify.com/s/files/1/0430/3742/5818/files/78114306023.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_off00006a0c.bin
0ee651549860f85b92a2d4f434718ed1da89042628a4b13f4620462495bbcf09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A0C 5148 bytes
font_01_sfnt_off00007b9c.bin
6e6451e7b9fc3aa25b350f4d7c62b3eef851bd5cd3ec3df2fce19abe98596413		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9C 10364 bytes

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