Malicious PDF — malware analysis report

Static analysis result for SHA-256 d530bda05f893cb1…

MALICIOUS

PDF

45.5 KB Created: 2020-08-10 04:30:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48e13e3426fc6514c165e9257e939c9c SHA-1: 54f51e1d1241f6d995facdf679e9ae5a5126dfc0 SHA-256: d530bda05f893cb11f99094d322d051bc1a26b376cb73d9f4230e68ceb436a6f
120 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=plagas+del+aguacate+hass+pdf'. Another critical heuristic indicates a PDF link farm, with 'https://cdn.shopify.com/s/files/1/0431/3831/8487/files/mebuz.pdf' being the first identified link. The document body, though heavily obfuscated, contains these URLs, suggesting a lure to external 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=plagas+del+aguacate+hass+pdf
    • http://files.drdom.com.au/uploads/1/3/0/9/130969761/4f6d1fb7.pdf
    • http://files.maryse-alen-vedicart.com/uploads/1/3/0/7/130776220/7128099.pdf
    • http://files.firstgenleaders.org/uploads/1/3/1/8/131856435/finumorakew.pdf
    • http://bovutele.rockriverreview.com/uploads/1/3/2/7/132712615/2642460.pdf
    • https://cdn.shopify.com/s/files/1/0431/3831/8487/files/mebuz.pdf
    • https://cdn.shopify.com/s/files/1/0438/6009/9222/files/84862081410.pdf
    • https://cdn.shopify.com/s/files/1/0431/6879/2732/files/58620969573.pdf
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/wigidodegodegab.pdf
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/vefesilubuzigakumo.pdf
    • https://cdn.shopify.com/s/files/1/0433/3545/0774/files/king_air_350_poh.pdf
    • https://cdn.shopify.com/s/files/1/0455/5584/3237/files/17994886338.pdf
    • https://cdn.shopify.com/s/files/1/0437/3292/6616/files/24483299700.pdf
    • https://cdn.shopify.com/s/files/1/0437/0661/3912/files/serabobafomu.pdf
    • https://cdn.shopify.com/s/files/1/0435/6807/0815/files/manipulative_psychology_101.pdf
    • https://cdn.shopify.com/s/files/1/0435/1547/8176/files/mezegibesusa.pdf
    • https://cdn.shopify.com/s/files/1/0431/4752/6305/files/11844292375.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/xogijuvemux.pdf
    • https://cdn.shopify.com/s/files/1/0432/2033/6807/files/figeperoleza.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_off00007248.bin
738b2946a4fe026584a3774e3ed9e48fff7239448ddf5f1aa3dcbefb82ad395f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7248 5320 bytes
font_01_sfnt_off00008466.bin
1ed3bf41e3ce773945ac6c3d67e782acc3af2e318657c684424ff5bb3f40b437		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8466 10756 bytes

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