Malicious PDF — malware analysis report

Static analysis result for SHA-256 b04380e7ec5196a3…

MALICIOUS

PDF

56.9 KB Created: 2020-08-30 08:55:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b2fcb36bf5e0ca05a6d1a767794941c SHA-1: 7a07a7f828857a26aff7aaf6eafc710c818ba9a7 SHA-256: b04380e7ec5196a394a730ad685b44abdf653ae862ed0cd6dbd8826f2ff99ec5
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Terraria dps chart' and the malicious URL itself. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many hosted on Shopify. The primary attack vector appears to be social engineering through a deceptive link.

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.com/wix?keyword=terraria+dps+chart
    • https://cdn.shopify.com/s/files/1/0430/9896/4117/files/despacito_lyrics_download_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0433/8407/8503/files/black_s_law_dictionary_12th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0431/7272/4900/files/2075879096.pdf
    • https://cdn.shopify.com/s/files/1/0433/6844/8152/files/xebupejo.pdf
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/522859389.pdf
    • https://cdn.shopify.com/s/files/1/0432/1129/2829/files/free_official_scrabble_dictionary.pdf
    • https://cdn.shopify.com/s/files/1/0432/5765/9547/files/git_create_file.pdf
    • https://cdn.shopify.com/s/files/1/0463/7927/0299/files/lettera_di_presentazione_in_inglese_formale.pdf
    • https://cdn.shopify.com/s/files/1/0439/2887/9272/files/zunotowozobufupulemiguk.pdf
    • https://cdn.shopify.com/s/files/1/0432/8803/5486/files/zenugurut.pdf
    • https://cdn.shopify.com/s/files/1/0433/0763/0747/files/smith_and_wesson_forum.pdf
    • https://cdn.shopify.com/s/files/1/0431/6659/7288/files/33837733074.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_off00006005.bin
61a4970247c466f79b14e8f8696f762ae2fe5a63ae617c0dc8c3814230b36e9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6005 21300 bytes
font_01_sfnt_off0000a246.bin
98720464739059fe7f30d98ab1b4bf04f654c88cf7dad3c18d8a8bfd61df08a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA246 5076 bytes
font_02_sfnt_off0000b37c.bin
281b877fa6341d6ed4439adf6fb1eb5dfa5594be7967ddfa178bdabe921153c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB37C 10352 bytes

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