Malicious PDF — malware analysis report

Static analysis result for SHA-256 592103aad6326b4d…

MALICIOUS

PDF

41.6 KB Created: 2020-08-01 20:06:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 746ae061a11c8ff6ee88df0888456021 SHA-1: fb05937e3b836766775b061dd628746554d27e34 SHA-256: 592103aad6326b4d33b0fe21364b83392af264452a9495efaaa31edd0f0aaa7d
120 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=difference+between+c+and+java'. Additionally, it exhibits a PDF link farm behavior, with numerous links pointing to Shopify domains, likely for SEO manipulation or to obscure the malicious redirect. The document body itself contains garbled text but includes the same suspicious URL, reinforcing the lure.

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=difference+between+c+and+java
    • http://files.bednbones.net/uploads/1/3/1/3/131398360/zepawuxavimuv.pdf
    • http://files.daughterofthestarswellness.com/uploads/1/3/1/8/131856392/pejodopijipulak.pdf
    • http://files.coachcarterllc.com/uploads/1/3/1/8/131871699/a85410b9b1e.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19252536586.pdf
    • https://cdn.shopify.com/s/files/1/0430/7927/0561/files/dave_rubin_net_worth.pdf
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/sparknotes_romeo_and_juliet_act_4.pdf
    • https://cdn.shopify.com/s/files/1/0428/8030/3263/files/vasozevasolefabu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0364/0999/files/53103140461.pdf
    • https://cdn.shopify.com/s/files/1/0436/4884/3934/files/vexet.pdf
    • https://cdn.shopify.com/s/files/1/0433/2004/9822/files/37426250704.pdf
    • https://cdn.shopify.com/s/files/1/0433/4066/0891/files/78367539977.pdf
    • https://cdn.shopify.com/s/files/1/0433/8502/8758/files/veritokefadaxepovovunevex.pdf
    • https://cdn.shopify.com/s/files/1/0430/7265/1413/files/verizivuwosi.pdf
    • https://cdn.shopify.com/s/files/1/0437/2915/8295/files/25587174853.pdf
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/carroll_county_indiana_gis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53293114795.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_off000063b7.bin
340f1e3b7b68861d506d33ee62c5096daa809d33c1a564aa4a257d19de5a718c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63B7 5172 bytes
font_01_sfnt_off0000757f.bin
ff996c63e71b28bad7ec6b579f45af689b3da3ecaae10307b5c98a6c10b2c7fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x757F 10544 bytes

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