Malicious PDF — malware analysis report

Static analysis result for SHA-256 235527ee27b8ba29…

MALICIOUS

PDF

33.5 KB Created: 2020-08-17 18:44:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b902869e136979981931094a4b52c6d SHA-1: eacbdf27550f56b2cbd77caf8164bacba4262892 SHA-256: 235527ee27b8ba29d1e72a335ce26fac87d91a5ca827d021c2dadecdd94e5379
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a brochure design template, which is a common lure for phishing or malware delivery. The PDF also features a link farm, suggesting an attempt to manipulate search engine results or distribute content widely. The presence of a visual download button further supports the deceptive nature of the document. The primary malicious URL identified is https://ttraff.com/pify?keyword=brochure+design+template+cdr.

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.com/pify?keyword=brochure+design+template+cdr
    • http://files.rachelsvineyardtucson.org/uploads/1/3/1/3/131383664/0714680.pdf
    • http://files.petersparents.com/uploads/1/3/2/6/132680827/xomumokixigesup.pdf
    • http://files.udonapartmentrentals.com/uploads/1/3/0/9/130969763/ronedaxojo.pdf
    • http://sotaviz.mingwongdesign.com/uploads/1/3/1/1/131164250/setovexana.pdf
    • https://cdn.shopify.com/s/files/1/0428/9540/9311/files/83638115676.pdf
    • https://cdn.shopify.com/s/files/1/0430/4830/4797/files/92357964705.pdf
    • https://cdn.shopify.com/s/files/1/0437/7129/7943/files/nikopevelonozidupot.pdf
    • https://cdn.shopify.com/s/files/1/0432/0133/1360/files/gitivusawita.pdf
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/81497999224.pdf
    • https://cdn.shopify.com/s/files/1/0437/8584/6933/files/gwyneth_paltrow_cruisin.pdf
    • https://cdn.shopify.com/s/files/1/0433/0723/7531/files/21_jump_street_streaming.pdf
    • https://cdn.shopify.com/s/files/1/0429/1582/3772/files/serefifenibokugut.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_off00004462.bin
fbb71431ed625714d4a5fdb29314e3e84ad14598c5f07a0a4c88fbf17118cb15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4462 5536 bytes
font_01_sfnt_off00005707.bin
c20bfce0013227bbc9efe3268f1e70abc725d93fd6245d7688e2be07c9463c54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5707 10088 bytes

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