Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ba70f62e98684a6…

MALICIOUS

PDF

80.4 KB Created: 2020-08-04 12:01:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42482758f5cc34bef6df0fac5ac07197 SHA-1: 2f7edbe4abac4f8381ccc65d7324b28e72693c0c SHA-256: 8ba70f62e98684a6c010b9349bdd466b3ef6fd2a98c4f80c58d3351e3af80894
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL. The PDF also contains a large number of external links, many of which point to Shopify domains, suggesting a link farm for SEO manipulation or to host 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.ru/pify?keyword=maulana+abul+kalam+azad+books+in+urdu+pdf
    • http://files.bikeebike.com/uploads/1/3/2/7/132741322/7246d111.pdf
    • http://files.carolinedancewest.com/uploads/1/3/0/7/130776308/510891.pdf
    • http://files.abnerhershberger.com/uploads/1/3/0/7/130776420/vetokezaluvipupinu.pdf
    • http://files.creative-sportsconcepts.com/uploads/1/3/1/4/131453068/6296509.pdf
    • http://files.fsk-midpen.com/uploads/1/3/1/0/131070895/sorebuvav-lafazaderip-polozudano.pdf
    • https://cdn.shopify.com/s/files/1/0429/4865/7311/files/steam_how_to_refund_a_gift.pdf
    • https://cdn.shopify.com/s/files/1/0436/0057/6669/files/pinifuxazusogujo.pdf
    • https://cdn.shopify.com/s/files/1/0433/2270/4030/files/dijuseveb.pdf
    • https://cdn.shopify.com/s/files/1/0431/6309/1110/files/ambasciate_italiane_all_estero.pdf
    • https://cdn.shopify.com/s/files/1/0433/6661/3141/files/8189415691.pdf
    • https://cdn.shopify.com/s/files/1/0430/8189/1989/files/lorazesukesuzojavasonaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5955/2155/files/login_to_my_adp.pdf
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/fenomamomujo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/fepawuroxetop.pdf
    • https://cdn.shopify.com/s/files/1/0434/0334/6078/files/derizepidel.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
stream_006_off00010be7.bin
4b5b7105b9a54e1959449f06834e23140308a901d7e78caac8c3ad9672d44120		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x10BE7 22144 bytes
font_00_sfnt_off0000d5c8.bin
6a4627eb4a2262ee276c03d9e839325cde794e205f996aa8ed40259aed85fd96		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C8 5444 bytes
font_01_sfnt_off0000e844.bin
f6e38fd7215800b6a8edc9f5e3a67f5e7db63668e1c52a67a957db6de9e54529		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE844 10392 bytes

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