Malicious PDF — malware analysis report

Static analysis result for SHA-256 d982eda025b65694…

MALICIOUS

PDF

35.7 KB Created: 2020-08-13 23:39:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a2392cc5d22de4fd300bd0474045c87 SHA-1: a5ba584e9a31312cb1fde4d5d9248d0ef2e2cc4d SHA-256: d982eda025b656940b7639c006cf7ce6831b162b694b3178f7af3f2b38b2bd7d
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.com/pify?keyword=chosen+kale+mazel+tov+sheet+music'. The document body, though heavily obfuscated, contains text that appears to be a lure related to sheet music, further supported by the presence of many PDF links, some pointing to Shopify domains. The primary attack vector is likely social engineering via a malicious link embedded within the PDF.

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.com/pify?keyword=chosen+kale+mazel+tov+sheet+music
    • http://files.flatspokecycles.com/uploads/1/3/1/4/131408529/6549756.pdf
    • http://files.agghog.com/uploads/1/3/1/6/131637409/8327238.pdf
    • http://files.yoder-bros.com/uploads/1/3/0/7/130775432/77a2a1c8532627b.pdf
    • http://xezeze.rscareersupport.org/uploads/1/3/1/6/131606289/6069562.pdf
    • http://dawiwubu.healthypetspetpro.com/uploads/1/3/1/1/131163635/6e955c6621.pdf
    • https://cdn.shopify.com/s/files/1/0433/5838/8374/files/free_camisole_pattern.pdf
    • https://cdn.shopify.com/s/files/1/0432/8423/4398/files/80940174551.pdf
    • https://cdn.shopify.com/s/files/1/0432/3291/9720/files/mogasazoriloziwekofi.pdf
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/18636836188.pdf
    • https://cdn.shopify.com/s/files/1/0450/9663/2472/files/fovezilesisejuvixik.pdf
    • https://cdn.shopify.com/s/files/1/0434/4800/8866/files/32554890632.pdf
    • https://cdn.shopify.com/s/files/1/0435/2393/2311/files/dakofamozer.pdf
    • https://cdn.shopify.com/s/files/1/0428/0716/5095/files/jijokugepolumobetid.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/34707652888.pdf
    • https://cdn.shopify.com/s/files/1/0447/2075/0745/files/multiple_picture_frame_template_photoshop.pdf
    • https://cdn.shopify.com/s/files/1/0428/1437/4054/files/42150862230.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_off00004e10.bin
575e6797bad5c6f2fa8e3e316343df558c4df2ca33e5020879311fb0fb34c731		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E10 5024 bytes
font_01_sfnt_off00005f0d.bin
373be86207fa07d1fa70cdcda76140a2c53d688daf20fdf774fa0bd1201317b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0D 10276 bytes

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