Malicious PDF — malware analysis report

Static analysis result for SHA-256 aed7f8a5dd5e5ead…

MALICIOUS

PDF

42.0 KB Created: 2020-08-05 03:31:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55d63a6cfb7cceea8d5d71c380b9d516 SHA-1: 230d789294624dc2189f4a0abe814c8ab38f7225 SHA-256: aed7f8a5dd5e5ead1e9f3df78ae787618c6d195d8352a40e2ee383c6d41f5fb9
120 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL, https://ttraff.com/pify?keyword=agamben+infancy+and+history+pdf, is likely used to redirect users to a malicious site. The document body, though heavily obfuscated, contains this URL and other links to PDF files hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute malicious content.

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=agamben+infancy+and+history+pdf
    • http://files.libertylifeyoga.com/uploads/1/3/0/9/130969446/d239da.pdf
    • http://files.livefoodgirls.com/uploads/1/3/2/6/132696030/kekegi_gezizifut_wuwiti.pdf
    • http://files.frithashandmade.uk/uploads/1/3/1/4/131437750/dademirokakuvaravise.pdf
    • http://files.shalomlife.org/uploads/1/3/2/6/132695511/jubalaxizebufaf_nerokimifaloxis.pdf
    • https://cdn.shopify.com/s/files/1/0432/6214/8763/files/dobakupotepudaxoxetux.pdf
    • https://cdn.shopify.com/s/files/1/0431/4900/0864/files/rijavegesakixufotuvatipab.pdf
    • https://cdn.shopify.com/s/files/1/0431/2170/5124/files/xeduxovirolimom.pdf
    • https://cdn.shopify.com/s/files/1/0447/5482/9463/files/benim_hocam_corafya_video_ders_notu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3396/0341/files/lebubaxanagarederigegor.pdf
    • https://cdn.shopify.com/s/files/1/0441/0019/0360/files/fidugajig.pdf
    • https://cdn.shopify.com/s/files/1/0432/5064/7204/files/banking_and_finance_notes.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/zettili_quantum_mechanics.pdf
    • https://cdn.shopify.com/s/files/1/0430/6193/6282/files/vetegobomonu.pdf
    • https://cdn.shopify.com/s/files/1/0428/4219/4083/files/bilevenubixowoletisugafor.pdf
    • https://cdn.shopify.com/s/files/1/0431/0273/2448/files/aarp_games_dark_dimensions.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_off000064de.bin
0b3aa55db0423ed978af19a6807a851246bbb25b48e9f85e27448d5654ececfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64DE 5768 bytes
font_01_sfnt_off0000786b.bin
bac448628437c6cb4a24899631de507aa4e8c1fda1429f6f5c9b9df9f19f4d0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x786B 10320 bytes

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