Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a9f5c4b2b5fc95c…

MALICIOUS

PDF

47.8 KB Created: 2020-08-17 12:58:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f81b8e89a14771fb1f834705d88e1fa SHA-1: e2b2fc5d6efcaadacfbbc1673fc52393b7f03244 SHA-256: 3a9f5c4b2b5fc95cdaf469b73c06cb0429a6d71e9024b07d2063b4e9126d7ca0
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=egypt+belly+dance+music+free'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links to external PDF files, many hosted on Shopify. The document body, though heavily corrupted, contains fragments suggesting a lure related to 'egypt belly dance music free', which is likely intended to entice users to click the malicious redirector.

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.cc/pify?keyword=egypt+belly+dance+music+free
    • http://bufopi.omega-usa.org/uploads/1/3/0/7/130739591/makixuvesudu.pdf
    • http://files.kilrushns.ie/uploads/1/3/1/6/131636651/xupaxisomo_nopatu_kilikujuramax_beraje.pdf
    • http://files.alphaoutfitterseqs.com/uploads/1/3/1/1/131163635/85b8a7b95d269f7.pdf
    • http://sazopili.mhjcmerch.com/uploads/1/3/1/6/131606758/dopamafax_magamazabew_lusopamaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sividejujim.pdf
    • https://cdn.shopify.com/s/files/1/0439/2475/0491/files/rasesedosoxamu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/47822650310.pdf
    • https://cdn.shopify.com/s/files/1/0435/5493/0839/files/48100239707.pdf
    • https://cdn.shopify.com/s/files/1/0438/7287/8747/files/jokuxuretewi.pdf
    • https://cdn.shopify.com/s/files/1/0430/3260/8917/files/malajovan.pdf
    • https://cdn.shopify.com/s/files/1/0433/8991/1194/files/kinomunarerota.pdf
    • https://cdn.shopify.com/s/files/1/0435/0096/1947/files/45791450417.pdf
    • https://cdn.shopify.com/s/files/1/0435/2324/4191/files/nazubakatusakox.pdf
    • https://cdn.shopify.com/s/files/1/0439/4863/8363/files/how_to_edit_pdf_file_for_free_without_watermark.pdf
    • https://cdn.shopify.com/s/files/1/0434/8067/8564/files/tamil_ultra_hd_movies_2019.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_off00007b61.bin
6c5c0a758008415ec7ca5db6528453394f5661f31886a999d2bcbea4166a891c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B61 5676 bytes
font_01_sfnt_off00008e9e.bin
1020f0282647f7a6d5e0aff0ddab6cd80ee0d3d4cc2fc6f8e1493eea31657b0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E9E 10364 bytes

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