Malicious PDF — malware analysis report

Static analysis result for SHA-256 3beced54ab587bd9…

MALICIOUS

PDF

40.6 KB Created: 2020-08-19 07:21:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0485d0131b4ebbc082f92b974bbaa252 SHA-1: 53175d336dca7475fe37a92d6672057c43be31c3 SHA-256: 3beced54ab587bd97e8e295aa691f447c84c0cd7922a76d383b178e5d5c3bad4
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is embedded within the document body, alongside numerous other links to Shopify-hosted PDFs, suggesting a link farm designed to obscure the malicious destination. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern involves luring the user to the malicious redirector.

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.com/pify?keyword=one+piece+bounty+rush+beta+apk
    • http://files.hillaryplog.com/uploads/1/3/0/7/130739809/8181e39262f080.pdf
    • http://files.littletownbakeshop.com/uploads/1/3/1/3/131379406/wudatujeweruj_rewusokuru_zagusador_mitidumaw.pdf
    • http://kekonaro.villageinnup.com/uploads/1/3/2/8/132814930/vebekila-patekamumunovi-gawibonopezabu.pdf
    • http://files.thesovereignspirit.com/uploads/1/3/0/9/130968984/kuxoda-zibujupot-dosirimaji-vafurijugofoges.pdf
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/84352194723.pdf
    • https://cdn.shopify.com/s/files/1/0438/7235/4459/files/eigen_identity_matrix.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53295895336.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55742160690.pdf
    • https://cdn.shopify.com/s/files/1/0432/0080/7070/files/jawevufegoverob.pdf
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/calculator_vault_app_hider_mod_apk.pdf
    • https://cdn.shopify.com/s/files/1/0437/7768/7701/files/nozafureruvopafevama.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6939/files/fujid.pdf
    • https://cdn.shopify.com/s/files/1/0436/7056/9113/files/7202510375.pdf
    • https://cdn.shopify.com/s/files/1/0437/3820/2273/files/fontana_car_accident_reports.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_off00005862.bin
51f4a2a91310f30c9bc73224e0a9f884733c44c8925654b90aa3b9c92e3b4014		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5862 5320 bytes
font_01_sfnt_off00006a70.bin
14831a58360d3e889feb05b7f8b36245c2f9e3ba4c368a96ed6a256a879b44a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A70 15160 bytes

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