Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea192ee461ffed00…

MALICIOUS

PDF

36.5 KB Created: 2020-08-07 07:24:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f76f557b2d9109666734ee5d713e70c SHA-1: e62addb19adf31348914f9a51375c23a702e5c0e SHA-256: ea192ee461ffed00be5abf22453653845a4dde3bdebe715c64df6abf611b43a6
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. This suggests the document is part of a link farm or SEO poisoning campaign designed to drive traffic to malicious infrastructure. The document body itself is largely unreadable binary data, but the presence of the malicious URL is the primary indicator of compromise.

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.ru/pify?keyword=cal+mag+d+plus+pdf
    • http://dugejej.emporiumofcanton.com/uploads/1/3/0/7/130776791/buziri.pdf
    • http://files.boninglassdesigns.com/uploads/1/3/1/4/131452958/zevigelivotodabesi.pdf
    • http://files.caringinc.net/uploads/1/3/1/8/131871698/suvosekow.pdf
    • https://cdn.shopify.com/s/files/1/0440/1600/9374/files/kosasojisojubumuvexovuro.pdf
    • https://cdn.shopify.com/s/files/1/0433/0379/6894/files/4018069597.pdf
    • https://cdn.shopify.com/s/files/1/0440/6483/3686/files/93688890211.pdf
    • https://cdn.shopify.com/s/files/1/0435/6793/9743/files/63190897186.pdf
    • https://cdn.shopify.com/s/files/1/0433/7231/4778/files/lafabosonozulirotiko.pdf
    • https://cdn.shopify.com/s/files/1/0428/7699/3695/files/arracacha_beneficios.pdf
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/beylikten_devlete_osmanl_medeniyeti.pdf
    • https://cdn.shopify.com/s/files/1/0440/9769/9992/files/fanuc_ot_control_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/2398/3015/files/wisupad.pdf
    • https://cdn.shopify.com/s/files/1/0430/6203/4589/files/13113589373.pdf
    • https://cdn.shopify.com/s/files/1/0433/6464/7077/files/37586427601.pdf
    • https://cdn.shopify.com/s/files/1/0431/1010/5255/files/85199433494.pdf
    • https://cdn.shopify.com/s/files/1/0440/3986/4485/files/zomaxog.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_off00005134.bin
b3a17254f508bbab50575237b3cefc1dec6ed20dad6118aaa2a43dde409f3ff0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5134 5168 bytes
font_01_sfnt_off000062bf.bin
de3dd5ce769d0f9032ccda523ff672a7ce4af18a6417e4b5e495d36b71f301b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62BF 10240 bytes

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