Malicious PDF — malware analysis report

Static analysis result for SHA-256 26c66a4e9995ea51…

MALICIOUS

PDF

45.8 KB Created: 2020-08-18 16:38:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c4a7d1282f4dfb1654b578ea70ca3373 SHA-1: 5f7862ba4dfc17fb3d7be9b6fc3b198a8ee6312c SHA-256: 26c66a4e9995ea51846465a4770c41d13c8c2d8e73ab55ed59f064bd1afc572c
128 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text referencing an 'executive sales report template' and includes the malicious URL. This suggests a social engineering lure to redirect users to malicious content.

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=executive+sales+report+template
    • http://files.sturgisumc.org/uploads/1/3/0/9/130969944/c03d572f117e95.pdf
    • http://files.carlyaltreewilliams.com/uploads/1/3/1/4/131482822/bujiri.pdf
    • http://files.congruentangles.us/uploads/1/3/1/8/131856907/laxet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65545430121.pdf
    • https://cdn.shopify.com/s/files/1/0430/7887/7337/files/manchild_in_the_promised_land_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/0607/3759/files/zodojugumirobixebe.pdf
    • https://cdn.shopify.com/s/files/1/0436/1961/4884/files/magnetic_properties_of_nanomaterials.pdf
    • https://cdn.shopify.com/s/files/1/0448/0057/3601/files/backstage_passes_and_backstabbing_bastards.pdf
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/satepew.pdf
    • https://cdn.shopify.com/s/files/1/0430/5430/1338/files/35275674027.pdf
    • https://cdn.shopify.com/s/files/1/0433/1444/6489/files/tevor.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3979/files/a_d_code_full_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_off000076c1.bin
58cba57c35bea2aa589e0694015d2d53d1a3cb017c1aaf2b895176371f31d112
pdf-font-stream PDF embedded font (sfnt) at offset 0x76C1 5164 bytes
font_01_sfnt_off0000883a.bin
bb0bb6db41d24a9cdebebd4f8f4a196da5ebdaa3bc77e135bd4bce0fe9988f48
pdf-font-stream PDF embedded font (sfnt) at offset 0x883A 10108 bytes