Malicious PDF — malware analysis report

Static analysis result for SHA-256 06319aa66c679e68…

MALICIOUS

PDF

44.5 KB Created: 2020-08-09 23:13:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b21657934458baae0301e6855f9f8bf3 SHA-1: 3a6475ac070a8dacd1b20d3167a3fefc95cce91a SHA-256: 06319aa66c679e68a3f0fd7afa1d4b414574618183f197b2e46d19e29674aaf3
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to a link farm hosted on Shopify. The primary malicious link, 'https://ttraff.cc/pify?keyword=axis+bank+mutual+funds+schemes+pdf', is identified as a known malicious redirector. The document's content, though partially obfuscated, appears to be a lure related to financial schemes, aiming to trick users into clicking these malicious links. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/pify?keyword=axis+bank+mutual+funds+schemes+pdf
    • http://files.peterlowden.net/uploads/1/3/1/3/131383720/7294733.pdf
    • http://puweji.1784.us/uploads/1/3/2/8/132814930/8d7337355ac.pdf
    • http://files.tylerjamesfisher.com/uploads/1/3/1/8/131856121/600a9c93018a.pdf
    • http://files.australianchurchofantioch.com/uploads/1/3/1/4/131437249/jajobaxar_xozunagerumog.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/9028/0609/files/4323203591.pdf
    • https://cdn.shopify.com/s/files/1/0450/3486/4798/files/managerial_accounting_for_managers_3rd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/7669/7760/files/advanced_english_grammar_book_for_class_11_12.pdf
    • https://cdn.shopify.com/s/files/1/0432/7761/5270/files/pimerore.pdf
    • https://cdn.shopify.com/s/files/1/0434/3005/2007/files/national_awards_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/4620/5602/files/pomikanijenivoligifuwat.pdf
    • https://cdn.shopify.com/s/files/1/0437/3600/6817/files/24664304207.pdf
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/35093891559.pdf
    • https://cdn.shopify.com/s/files/1/0432/7066/8453/files/75309923028.pdf
    • https://cdn.shopify.com/s/files/1/0434/2674/2421/files/powonegesumi.pdf
    • https://cdn.shopify.com/s/files/1/0450/9207/7731/files/31215042543.pdf
    • https://cdn.shopify.com/s/files/1/0445/7873/4239/files/bruce_lipton_honeymoon_effect.pdf
    • https://cdn.shopify.com/s/files/1/0430/1497/9737/files/12105575894.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f54.bin
5c4f5f2f68c03c7454a8118b594d8413fcd764c10a7fc68f43d82ba89475a999		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F54 5560 bytes
font_01_sfnt_off00008221.bin
ff616d9b69bb56ea9eaea67eaccf56044e0835c3244e1d3891e34df6c2e844c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8221 10204 bytes

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