Malicious PDF — malware analysis report

Static analysis result for SHA-256 b44360681f6fb7c6…

MALICIOUS

PDF

44.3 KB Created: 2020-08-16 00:12:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 714437f3ff37289f93b969c3af1fb5b6 SHA-1: 54a46f2fc2e527fa78012a1906b02e65830bbe7f SHA-256: b44360681f6fb7c62b85fe72698ebbc148082bcc87eb6af3b8e1c1fc4abc31fd
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL and a large number of other URLs, many hosted on Shopify, suggesting a link farm for SEO poisoning. The primary malicious link is designed to lure users into downloading content, likely leading to further malicious activity.

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=introduction%20to%20chemical%20reactions%20worksheet%20pdf
    • http://xixute.brealestate.com/uploads/1/3/1/4/131483138/jafedil.pdf
    • https://cdn.shopify.com/s/files/1/0433/1149/7366/files/sugepikanukapoxunew.pdf
    • https://cdn.shopify.com/s/files/1/0428/3141/3404/files/1718001353.pdf
    • https://cdn.shopify.com/s/files/1/0429/3771/2806/files/fur_elise_piano_score.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/thanos_vs_hulk_comic.pdf
    • https://cdn.shopify.com/s/files/1/0434/1117/7639/files/jirosapadijuk.pdf
    • https://cdn.shopify.com/s/files/1/0439/0905/4619/files/english_dictionary_file_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/kojewabovubuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1028728638.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5715/files/votupapakunokemarigadad.pdf
    • https://cdn.shopify.com/s/files/1/0431/7282/3202/files/ditimatawawegobab.pdf
    • https://cdn.shopify.com/s/files/1/0434/2313/7957/files/mojimiverufosivo.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_off00005873.bin
565e99d64711d6a9d59e14760bea8d85aa0dcd6973454cc7c2ff7caa52474b5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5873 1604 bytes
font_01_sfnt_off00006095.bin
bc9cbdbf452f70f0a7562a6c6e1579776acc6649dd31f6c3991722fd81d5e130		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6095 5368 bytes
font_02_sfnt_off000072b1.bin
6dc08e911d62ec1b39765a2fe5d8234de7370243a30b7c2c3517b80584261ae4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72B1 10164 bytes
font_03_sfnt_off0000958e.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x958E 4324 bytes

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