Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6f9e6ad659982a6…

MALICIOUS

PDF

39.3 KB Created: 2020-08-19 05:30:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0f6e36995447dcb47e8247b079071c53 SHA-1: 00a70c379a64f606a367b7ef58bdcc30d686f747 SHA-256: f6f9e6ad659982a691e5bcafd8cb22e561c330de89738c608b6ea631e5241b0a
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as an immunization form, leading to the ttraff.ru domain. It also functions as a link farm, with many links pointing to Shopify domains, likely for SEO manipulation to increase visibility. The presence of a call-to-action button further supports a malicious intent to trick the user into clicking the link.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=immunization+form+brooklyn+college
    • http://makol.watips.net/uploads/1/3/1/4/131407089/zunixawubudulisewar.pdf
    • http://files.highbanks.marketingfactorygroup.com/uploads/1/3/0/7/130739232/4487985.pdf
    • http://files.zion-cobleskill.org/uploads/1/3/1/6/131636678/22ac99b9b.pdf
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/lazivakamexupudogoje.pdf
    • https://cdn.shopify.com/s/files/1/0434/1150/5302/files/digital_amazing_bible_timeline.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zemeletitofugawekabol.pdf
    • https://cdn.shopify.com/s/files/1/0431/1387/3569/files/1846019324.pdf
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/uta_bachelor_of_science_in_biology.pdf
    • https://cdn.shopify.com/s/files/1/0435/1148/0472/files/5889055205.pdf
    • https://cdn.shopify.com/s/files/1/0434/3264/0664/files/60801339947.pdf
    • https://cdn.shopify.com/s/files/1/0429/1470/9663/files/buluxujaximetukeso.pdf
    • https://cdn.shopify.com/s/files/1/0428/4920/6439/files/84616752110.pdf
    • https://cdn.shopify.com/s/files/1/0440/4133/9045/files/fedex_waybill_form.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_off00005824.bin
105197a4a45081f4ebe1a4ece0f8fa33542d1c4d0ed47fe56eea322d24f8622e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5824 5316 bytes
font_01_sfnt_off00006a3c.bin
ac73a698b160ff64193a523e20839ab4a9135fdc0b1b33df2a194ad86b59a49a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A3C 10744 bytes

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