Malicious PDF — malware analysis report

Static analysis result for SHA-256 dffc3ed60c8ecd5e…

MALICIOUS

PDF

42.8 KB Created: 2020-08-27 14:29:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 462ef5e1e33cf7f2ada17030f239516d SHA-1: 4bffe711c519396e30a4666fcfedf78ebfb1db85 SHA-256: dffc3ed60c8ecd5ec30a82f4e46046f33056e7a9776eeef4780dee6dd14fe7ad
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded links suggest a lure to trick users into visiting the malicious site, likely for phishing or malware distribution. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many pointing to benign Shopify domains, but the primary malicious redirector is the critical finding.

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=chokher+bali+full+bengali+movie+watch+online
    • http://files.kazzrie.com/uploads/1/3/1/6/131636843/jawakekatepi-pisivulu-retajaweweji.pdf
    • http://files.lulabellsconfections.com/uploads/1/3/1/1/131164431/renitinobuti.pdf
    • http://files.sweetenyourlife.com.au/uploads/1/3/2/6/132695829/virulo.pdf
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/kinizinafigikudutaretepoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/6001/8852/files/vesopujunedameredagito.pdf
    • https://cdn.shopify.com/s/files/1/0428/0313/4627/files/69441228269.pdf
    • https://cdn.shopify.com/s/files/1/0433/6926/7354/files/wazawosugefuxudinuge.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96951977507.pdf
    • https://cdn.shopify.com/s/files/1/0439/1639/4648/files/contaminacion_del_aire.pdf
    • https://cdn.shopify.com/s/files/1/0431/5352/2850/files/linkin_park_living_things_songs.pdf
    • https://cdn.shopify.com/s/files/1/0437/1080/8213/files/68062984384.pdf
    • https://cdn.shopify.com/s/files/1/0432/0064/3236/files/8262687923.pdf
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/77045618197.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mupesoxozuwimufuvijolus.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051ce.bin
f109cb4eaee7707fbe215bffaa1853fc71c75265fdef86ee59df559c4d285109		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51CE 5376 bytes
font_01_sfnt_off00006408.bin
f17c253d30ab185855da0cd37bfe7db185decc00b286a58ac2bc4b29ab9041e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6408 10668 bytes
font_02_sfnt_off000088ad.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88AD 16164 bytes

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