Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ab2e32ddda971f8…

MALICIOUS

PDF

43.5 KB Created: 2020-08-04 09:07:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f4d31382f233e435e8e92b424198498 SHA-1: 10d522e54f8549753dcee9cdd758dbe206dbd24c SHA-256: 4ab2e32ddda971f8886f1698cdf301b2e42b612320b353a45900cd6278aed281
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=bitter+gourd+diabetes+pdf'. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on cdn.shopify.com, suggesting a link farm or redirection strategy. The primary intent appears to be directing users to malicious infrastructure under the guise of health information.

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=bitter+gourd+diabetes+pdf
    • http://rabodatar.katherinelywong.com/uploads/1/3/1/3/131379732/b64a4a.pdf
    • http://files.1nelson.ca/uploads/1/3/1/0/131070207/6957002.pdf
    • http://files.lynnnicholaswrites.com/uploads/1/3/2/6/132695445/3551317.pdf
    • http://files.yardieting.com/uploads/1/3/1/1/131164351/abeecc88c4e.pdf
    • http://files.whitepeacockcoffee.com/uploads/1/3/1/4/131436971/7dad80.pdf
    • https://cdn.shopify.com/s/files/1/0431/7695/1965/files/xarogivavox.pdf
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/fuwufe.pdf
    • https://cdn.shopify.com/s/files/1/0429/9279/5801/files/zubage.pdf
    • https://cdn.shopify.com/s/files/1/0432/0270/7616/files/catalogo_hinode_ciclo_4_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/8089/9989/files/rixusakuwemuvabudujoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/1998/5319/files/sawizumovekisotidesuremog.pdf
    • https://cdn.shopify.com/s/files/1/0430/4227/5479/files/67846235622.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vofekofunore.pdf
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/54717158759.pdf
    • https://cdn.shopify.com/s/files/1/0432/5693/8664/files/19921090529.pdf
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/53815603910.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9814/files/radawoxufobulapo.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_off00006c42.bin
d6c3bc15c29087ada43b77dd5e27b3f7ef12da60fb2697a6579a995a468367ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C42 5368 bytes
font_01_sfnt_off00007e91.bin
75823603587d18b118418ce634cc84e3bafdc7aa41b394622736c948f2b2c7d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E91 10076 bytes

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