Malicious PDF — malware analysis report

Static analysis result for SHA-256 46662ca345294787…

MALICIOUS

PDF

48.4 KB Created: 2020-07-30 15:35:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c866ba871bb13c5d0aa02373ede00d2 SHA-1: 5d7925b55d8693e8a44c6992a42d627b0bbf16f4 SHA-256: 46662ca345294787aba70049aa8eaa6853c7ed4992b13508d74290cc6516ecdf
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this, indicating the document's primary purpose is to redirect users to malicious infrastructure. The presence of many other PDF links suggests a link farm or SEO poisoning attempt to increase visibility and traffic to the malicious site.

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=clinical+examination+of+the+eye+pdf
    • http://files.michellemorrisonwrites.com/uploads/1/3/0/8/130815137/xizevenib.pdf
    • http://files.skipsisters.co.uk/uploads/1/3/1/3/131383314/76c0b345ec866.pdf
    • http://files.kateschroederlpc.com/uploads/1/3/1/4/131482886/8004554.pdf
    • http://files.mk-miniaturehorses.com/uploads/1/3/1/4/131406369/5ccd2bcb4ee4a.pdf
    • http://files.escambialatin.com/uploads/1/3/2/6/132695392/senilix-botuxixigup.pdf
    • http://files.skipsisters
    • https://cdn.shopify.com/s/files/1/0429/6412/3814/files/73643791951.pdf
    • https://cdn.shopify.com/s/files/1/0432/9390/0958/files/88207127037.pdf
    • https://cdn.shopify.com/s/files/1/0430/3467/3305/files/97228006828.pdf
    • https://cdn.shopify.com/s/files/1/0430/0180/6997/files/fobenuzukuzatanimupi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6786/6265/files/81532694028.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/vutamenutixipoboxu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0005/3408/files/484341880.pdf
    • https://cdn.shopify.com/s/files/1/0429/2778/4099/files/27537036732.pdf
    • https://cdn.shopify.com/s/files/1/0434/2854/4668/files/ketutejodowidetijigoxan.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/92899298783.pdf
    • https://cdn.shopify.com/s/files/1/0427/9926/8003/files/pakuzojavorolumufa.pdf
    • https://cdn.shopify.com/s/files/1/0432/8292/3676/files/66733047245.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_off000080ce.bin
30aa4eb579f95a53ae941c4fd3552cd3da9ec9ed48aecf3a4665f1ca798a25d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80CE 5104 bytes
font_01_sfnt_off0000920d.bin
ff899b66e6eec774317e921cf9e2694f1671418d9610bf5ba44c256d541b3538		 pdf-font-stream PDF embedded font (sfnt) at offset 0x920D 10132 bytes

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