Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d94564f32549e34…

MALICIOUS

PDF

41.7 KB Created: 2020-07-31 15:25:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 430b6f6a3bcd93eeb2b7d70bf3d59eeb SHA-1: 150841adbeead02b6c29b9836c466e7ae028c7cf SHA-256: 1d94564f32549e3433f40225d83a6dc3cb8933bea2f2e3086e647f6d2a0e5d9b
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to Shopify domains, but one critical heuristic identified a link to a known malicious redirector. The document body is heavily obfuscated, but the presence of 'Comcast lansing mi' suggests a potential lure for phishing or credential harvesting. The primary attack pattern involves directing users to malicious infrastructure via a link farm.

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=comcast+lansing+mi
    • http://files.enlightenedcatering.com/uploads/1/3/0/7/130775462/5afa6d84e4d.pdf
    • http://files.thehousefixers.com/uploads/1/3/1/4/131437848/987e2d.pdf
    • http://files.lugs-4u.com/uploads/1/3/2/8/132814050/e9e403683cd63.pdf
    • http://files.shopcuriosities.com/uploads/1/3/2/7/132740329/jedetunefumujexonos.pdf
    • https://cdn.shopify.com/s/files/1/0434/5892/0605/files/43594213308.pdf
    • https://cdn.shopify.com/s/files/1/0429/6550/0060/files/8182325128.pdf
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/81578758329.pdf
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/pejakomotibulodosuredixi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2887/2359/files/redetoni.pdf
    • https://cdn.shopify.com/s/files/1/0432/4173/4311/files/29299952218.pdf
    • https://cdn.shopify.com/s/files/1/0435/8671/5805/files/selebujunakokikegu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7278/2489/files/39342415184.pdf
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/56010036644.pdf
    • https://cdn.shopify.com/s/files/1/0429/0058/6649/files/65289655436.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vawis.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/
    • https://cdn.shopify.com

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000655f.bin
6bc18cb1025e35c814b968d5651f416f5baf28c62ee6a8e5fe2de7d5d30e12ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x655F 4716 bytes
font_01_sfnt_off00007540.bin
2ab825be7d76f0e355ab9c38f0b395f401d6e92165e46b54f3bf9c707acf098a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7540 10440 bytes

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