Malicious PDF — malware analysis report

Static analysis result for SHA-256 3538a9677775ea5d…

MALICIOUS

PDF

70.9 KB Created: 2020-08-24 08:00:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f82021c22433ca1e9725d6688b604ef SHA-1: 02eb0d9d5b1f8497084b52f32a1e1e64eb91bf25 SHA-256: 3538a9677775ea5d66dccd8bb60811ff730bec024abe2ff2acf1d55c53f907d2
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'. The document body, though partially corrupted, contains the same URL. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious URL is a redirector designed to lead users to potentially harmful 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=pcos+fertility+treatment+nice+guidelines
    • http://virevojuv.ramankuttylab.com/uploads/1/3/0/7/130776702/bitafarupidiviw.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/52720154958.pdf
    • https://cdn.shopify.com/s/files/1/0437/8171/8167/files/2020_budget_ghana_highlights.pdf
    • https://cdn.shopify.com/s/files/1/0431/0604/2013/files/73894201424.pdf
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/modern_auditing_and_assurance_services_6th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0439/0505/6920/files/52929216244.pdf
    • https://cdn.shopify.com/s/files/1/0433/7503/4524/files/gugaxulawokonuturop.pdf
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/carey_nieuwhof_books.pdf
    • https://cdn.shopify.com/s/files/1/0431/3687/6695/files/emulator_meaning_in_android.pdf
    • https://cdn.shopify.com/s/files/1/0430/3765/5193/files/jerijozoporaxupotate.pdf
    • https://cdn.shopify.com/s/files/1/0430/8510/3255/files/gedubal.pdf
    • https://cdn.shopify.com/s/files/1/0438/8998/3643/files/buforejazefejo.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/ratchet_and_clank_crack_in_time_walkthrough.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_off0000d93a.bin
43ea59a9a917bfcd81b085f03331e1385bec5f02358dc004929dbbb208414c1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD93A 5444 bytes
font_01_sfnt_off0000eba0.bin
a9637dc765e8e9023904d2bdd38bcbfb117234cbbf98dc41939f0aa206dd5167		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA0 10244 bytes

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