Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba015dffe697f95d…

MALICIOUS

PDF

41.5 KB Created: 2020-08-01 17:31:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4848b028b50ad0f8896ec843c4357978 SHA-1: 82a7e18b7cf7bdc0742e63983f3c961a1a2d015f SHA-256: ba015dffe697f95d54c0bda22d1b82fdecc8d53948024339c18645e4580a4f5e
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The document body text, though garbled, contains the URL 'https://ttraff.cc/pify?keyword=print+labels+from+google+sheets', indicating a lure to a malicious site. The presence of numerous links to Shopify-hosted PDFs suggests an attempt to appear legitimate while directing users to malicious infrastructure.

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=print+labels+from+google+sheets
    • http://files.robroymcfarland.com/uploads/1/3/0/7/130740490/movojotikeziz.pdf
    • http://files.desmoinescommunityorchestra.org/uploads/1/3/1/3/131381679/xewenuzozuvobul.pdf
    • http://files.theeblacksocialite.com/uploads/1/3/0/9/130969663/lixojufe.pdf
    • http://files.recreatestrengths.com/uploads/1/3/1/4/131482821/sizemovelat.pdf
    • https://cdn.shopify.com/s/files/1/0431/7875/4199/files/96980260649.pdf
    • https://cdn.shopify.com/s/files/1/0437/6834/8830/files/46810635074.pdf
    • https://cdn.shopify.com/s/files/1/0429/5327/7589/files/phonics_worksheets_for_3rd_grade_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/10624662904.pdf
    • https://cdn.shopify.com/s/files/1/0430/2585/8711/files/45801202995.pdf
    • https://cdn.shopify.com/s/files/1/0429/1218/6531/files/90723771522.pdf
    • https://cdn.shopify.com/s/files/1/0427/7692/0220/files/veponiden.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32177526878.pdf
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/59643059167.pdf
    • https://cdn.shopify.com/s/files/1/0437/7971/9330/files/judge_judy_episode_list.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_off0000658b.bin
781086f256630d47a9991b8000cc84ae39125b75deae62e887e15f779afdb21b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x658B 5320 bytes
font_01_sfnt_off00007776.bin
4908c247085d0a68e1096a0b9f99ca65a3d06d857cd559d4612a8a734ee82fb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7776 9776 bytes

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