Malicious PDF — malware analysis report

Static analysis result for SHA-256 a67a61b408c37a37…

MALICIOUS

PDF

53.2 KB Created: 2020-07-31 14:38:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93368b6cf44251e0eea4138d1432a085 SHA-1: e041a4da1ffe55012a337b15a30c7da6e21413b5 SHA-256: a67a61b408c37a3791acdcba5c971320da7fd5ac827c35112cee739b5c66410b
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of these links redirects to a known malicious domain (ttraff.ru), indicating a phishing or redirection attempt. The document body, though heavily obfuscated, suggests a lure related to a 'Braves schedule 2020 pdf'. No scripts were extracted from this sample.

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=braves+schedule+2020+pdf
    • http://files.wellnesswednesdayswithkatie.com/uploads/1/3/1/1/131163512/7e84ba20e07fa44.pdf
    • http://files.michelle-kessler.com/uploads/1/3/1/3/131398338/179b8a12186d.pdf
    • http://files.hbluxury.co/uploads/1/3/1/4/131437576/4054971.pdf
    • http://files.maggieshao.com/uploads/1/3/1/6/131636862/75c7e2b3b2.pdf
    • http://files.zalzabik.com/uploads/1/3/2/6/132696154/mavizoso.pdf
    • http://files.maggiesh
    • https://cdn.shopify.com/s/files/1/0432/6175/5547/files/xariputadatuseradixeta.pdf
    • https://cdn.shopify.com/s/files/1/0430/7176/6690/files/pilew.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/fupenatobesi.pdf
    • https://cdn.shopify.com/s/files/1/0428/5772/6118/files/54314847090.pdf
    • https://cdn.shopify.com/s/files/1/0440/4533/6726/files/gizep.pdf
    • https://cdn.shopify.com/s/files/1/0429/7955/7529/files/turemijeligejobezabewot.pdf
    • https://cdn.shopify.com/s/files/1/0437/5298/0641/files/74446533974.pdf
    • https://cdn.shopify.com/s/files/1/0431/7364/2389/files/letipazisu.pdf
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/25713479556.pdf
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/gifiwujavagosigujaremoviw.pdf
    • https://cdn.shopify.com/s/files/1/0436/3429/4937/files/rilalasaxipune.pdf
    • https://cdn.shopify.com/s/files/1/0430/7661/6353/files/76425453978.pdf
    • https://cdn.shopify.com/s/files/1/0439/5070/2750/files/18564396840.pdf
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/tefoxalomidogovirofuwi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007bb1.bin
e6b733fb25d7889c9f1546d50c284c821f399ad28c0b36a681af24a1aad63257		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB1 5164 bytes
font_01_sfnt_off00008d58.bin
cc044367b006385fa4c5672524ff0284f51679acb59c9fa647283ba5be682a0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D58 10444 bytes
font_02_sfnt_off0000b145.bin
04f7f01f0e81293101bff3dd2fde270aec15dc769f0ca1dde224ef3aeb45275a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB145 16428 bytes

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