Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea08a3c0d5ea8003…

MALICIOUS

PDF

46.7 KB Created: 2020-07-29 08:53:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7dea271909f00d5406f35cf791afbb1f SHA-1: e81362c94e44a27171dd10c799e449d1ed6b74f2 SHA-256: ea08a3c0d5ea80037f5b1caf173d5b9fdaffcc06dd86f3eeaa1660e1efb60ac0
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 pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, suggesting an attempt to generate traffic or distribute content through numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains keywords related to a 'guide book' and 'gamestop', likely a lure. No scripts were extracted from this sample.

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/pify?keyword=breath+of+the+wild+guide+book+gamestop
    • http://files.ldesign802.com/uploads/1/3/0/7/130775045/2cc75.pdf
    • http://files.grannysbibletalk.com/uploads/1/3/1/4/131437401/1952564.pdf
    • http://files.lightthewaytraining.com/uploads/1/3/1/4/131453399/nibejuvabed.pdf
    • http://files.sunweeklynews.com/uploads/1/3/1/3/131381658/8652791.pdf
    • https://cdn.shopify.com/s/files/1/0435/5679/8627/files/97766682651.pdf
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/1716849469.pdf
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/27106129931.pdf
    • https://cdn.shopify.com/s/files/1/0431/9064/8996/files/59560670312.pdf
    • https://cdn.shopify.com/s/files/1/0436/9694/7353/files/bafoweluwaso.pdf
    • https://cdn.shopify.com/s/files/1/0431/4575/6821/files/motiwifididoxurugeg.pdf
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/39895659518.pdf
    • https://cdn.shopify.com/s/files/1/0433/8827/2807/files/moxat.pdf
    • https://cdn.shopify.com/s/files/1/0428/6929/3223/files/mojow.pdf
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/11561063936.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_off00007548.bin
675f386cf6d6cb2f63a91aa5d7fcbc8dd995fb2108680572806a9a74c73eefc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7548 5576 bytes
font_01_sfnt_off00008858.bin
a3de2c492cfed35f00152af6b2642e3087135528b71c792679249fc792bbe96b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8858 10920 bytes

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