Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee22954ec7236c7b…

MALICIOUS

PDF

41.5 KB Created: 2020-08-26 10:29:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 914648aaa572f0bd8e5efde95186d79f SHA-1: 2a6b39fe0716ed94b420cefea55c271addc4410e SHA-256: ee22954ec7236c7b478d7b73ae26ae31d516a7c83cb1b2b9f27d6f9cb9cf814e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru' with a keyword suggesting a software download lure. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify domains. The presence of the embedded URL and the malicious redirector strongly suggests an attempt to drive traffic to malicious infrastructure, likely for further exploitation or credential harvesting. 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=logitech+c525+software+download
    • http://xazuvure.siennaquartet.com/uploads/1/3/1/1/131163599/8def88ecaf25.pdf
    • http://kulip.blessedhopeomaha.com/uploads/1/3/1/1/131164273/mawikeparidutis-wavivofazudimi-bawijano-tijafixu.pdf
    • https://cdn.shopify.com/s/files/1/0436/9999/4789/files/9912288595.pdf
    • https://cdn.shopify.com/s/files/1/0436/3173/9033/files/12067564876.pdf
    • https://cdn.shopify.com/s/files/1/0429/9243/5359/files/delete_multiple_worksheets_in_excel_vba.pdf
    • https://cdn.shopify.com/s/files/1/0431/7465/8216/files/item_analysis_report_sample.pdf
    • https://cdn.shopify.com/s/files/1/0428/0582/1599/files/furuwasuwafidesavaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/0441/1556/files/99669439992.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/betakapavumiwarixosamovav.pdf
    • https://cdn.shopify.com/s/files/1/0435/9412/1379/files/pijarajubezegazavulofid.pdf
    • https://cdn.shopify.com/s/files/1/0435/4398/6340/files/sivetidi.pdf
    • https://cdn.shopify.com/s/files/1/0433/9243/4326/files/nikevisijukuz.pdf
    • https://cdn.shopify.com/s/files/1/0434/5459/5225/files/baandari_trading_post_eso.pdf
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/kivazuzafosusomenabosav.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_off000063cc.bin
f78663cc0598ce2f41303725e9460bbac91cfa3a9c0f883c5180a3130af55abc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63CC 5572 bytes
font_01_sfnt_off000076d4.bin
e98736e921ea790b81727a11cb19eaa0780de8022bdb7aff5ae0666b171e633f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76D4 10056 bytes

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