Malicious PDF — malware analysis report

Static analysis result for SHA-256 95ecb62c68e020dd…

MALICIOUS

PDF

43.9 KB Created: 2020-08-20 12:43:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 668760a1a5ddc3ef4c75f9d12755171e SHA-1: 6c9ddde32197ea0eaf519158b58b5d74c398ab1c SHA-256: 95ecb62c68e020dd9d50a77240300b3df794d1b5ba59453e163f3b2188b8477c
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to obscure the final destination. The document body and heuristics indicate a link farm strategy, likely to distribute malware or conduct phishing. The primary malicious IOC is the redirector URL, which is intended to lead the user to a harmful site.

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.cc/pify?keyword=accident+report+book+uk
    • http://files.ninerdomesticdesigns.com/uploads/1/3/1/3/131379262/7880084.pdf
    • http://files.mtandd.com/uploads/1/3/1/1/131164399/kixetax_xuvagomadogu.pdf
    • http://files.cynthiastoneart.com/uploads/1/3/0/7/130774969/rogenatusomemibov.pdf
    • http://files.henkpeetersarchive.info/uploads/1/3/1/8/131871730/riradakasogof-latapunowu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mofofuledezenededur.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/balevogigadan.pdf
    • https://cdn.shopify.com/s/files/1/0433/4610/0377/files/11268994909.pdf
    • https://cdn.shopify.com/s/files/1/0433/9420/3806/files/xumorudaletubeme.pdf
    • https://cdn.shopify.com/s/files/1/0440/7492/6230/files/peduvim.pdf
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/my_hero_acoustic_tab.pdf
    • https://cdn.shopify.com/s/files/1/0431/2920/8992/files/dogipibep.pdf
    • https://cdn.shopify.com/s/files/1/0437/2093/3528/files/fozikutamozobumi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9535/9641/files/merriam_webster_children_s_dictionary.pdf
    • https://cdn.shopify.com/s/files/1/0427/6961/2966/files/cardiology_mcq.pdf
    • https://cdn.shopify.com/s/files/1/0432/2204/0731/files/mufupebotesebofekerowixim.pdf
    • https://cdn.shopify.com/s/files/1/0435/7688/5416/files/magazine_article_structure.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_off00007084.bin
8b1ded0008e74cb21b1eb61eb85aad29f6bdd2cb2df5022b151024a140150036		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7084 4840 bytes
font_01_sfnt_off000080f9.bin
e8cbb6c93e04bfdd38c8cb35113c177c8ef7d7cce87d7705713cdd893eff21d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80F9 9996 bytes

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