Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ef070012f1c8c7d…

MALICIOUS

PDF

44.3 KB Created: 2020-08-19 00:48:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a3266714698787ad8b0f67229e646b9b SHA-1: feb916113e1d3ff54b7851a36e15453683a88e14 SHA-256: 3ef070012f1c8c7d1d9fede6df79c1ad6d03ee601fbb24cdb6989c4341fb0def
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. The document body, though heavily obfuscated, also contains this URL and numerous other links to external PDFs hosted on Shopify and other domains. This suggests a link farm or redirection tactic to obscure the ultimate malicious destination. The primary malicious URL is 'https://ttraff.ru/pify?keyword=milestones+in+project+management+template'.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=milestones+in+project+management+template
    • http://files.fusionsoapquilt.com/uploads/1/3/1/0/131070866/pimefekabe.pdf
    • http://files.kroadcottage.net/uploads/1/3/1/4/131406202/3552080.pdf
    • https://cdn.shopify.com/s/files/1/0437/0743/3125/files/67833689525.pdf
    • https://cdn.shopify.com/s/files/1/0443/1914/6140/files/eclipse_cdt_package_for_c_development.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/satexawepezerawafa.pdf
    • https://cdn.shopify.com/s/files/1/0434/9257/3334/files/ccleaner_windows_10_piriform_deutsch.pdf
    • https://cdn.shopify.com/s/files/1/0431/0165/1105/files/addition_to_10000_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/45173592655.pdf
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/5125082070.pdf
    • https://cdn.shopify.com/s/files/1/0434/8097/3477/files/40861331348.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7905/files/63432339205.pdf
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/kosubap.pdf
    • https://cdn.shopify.com/s/files/1/0431/8307/9592/files/wellston_forum_topix.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96226605796.pdf
    • https://cdn.shopify.com/s/files/1/0433/9925/0072/files/53907889150.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_off00006ef6.bin
579974a21af76a37a9615cfbec6f9807ea10c685c194e9217fc3d13b5c5ccf0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF6 5332 bytes
font_01_sfnt_off0000810c.bin
f7f7dfd41bfbabe90dd581954ecc680c88a34b744950883add1242c43f2c67a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x810C 10356 bytes

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