Malicious PDF — malware analysis report

Static analysis result for SHA-256 e86350e99d5c39e3…

MALICIOUS

PDF

66.9 KB Created: 2020-08-09 16:28:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 971e0a2756e5fcb2453d91e503db27fa SHA-1: ee64ac49816caa71f43a4801c7a31f439dcf9e03 SHA-256: e86350e99d5c39e3cb13bd5d543ff4f1e1d7e241c8f399d4d96d2cb372e6ea9d
150 Risk Score

Malware Insights

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

The PDF contains a link disguised as a product manual that redirects to a known malicious domain, ttraff.com. This indicates a phishing or social engineering attack aimed at redirecting users to malicious infrastructure. The PDF also contains a large number of other links, many pointing to Shopify, suggesting an attempt to obscure the malicious redirector or to appear as a legitimate link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=bose+soundsport+free+manual+pdf
    • http://mapum.chino77thcavalry.com/uploads/1/3/1/4/131437423/gudokoguzuwuweras.pdf
    • http://files.otrphoto.com/uploads/1/3/1/4/131437157/4736991.pdf
    • http://files.countrytowne.org/uploads/1/3/1/3/131379183/5272420b95a.pdf
    • http://files.goproremovals.co.uk/uploads/1/3/2/6/132681694/8085352.pdf
    • https://cdn.shopify.com/s/files/1/0437/7339/5106/files/enterprise_tallahassee_mahan.pdf
    • https://cdn.shopify.com/s/files/1/0432/8429/9934/files/calendario_abril_2020_chile.pdf
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/67946619217.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8184/files/47400774838.pdf
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/fuwusenujubabegal.pdf
    • https://cdn.shopify.com/s/files/1/0433/2358/8773/files/standard_methods_of_biochemical_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0435/1141/4939/files/20811075241.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/581871399.pdf
    • https://cdn.shopify.com/s/files/1/0438/9024/5787/files/kazajogejutowijoke.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/liwisubusamepumiv.pdf
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/dialectical_journal.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87294954422.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_off0000bbe6.bin
ec20d1e6c95d6fbb851c09324d1d18614777b3715de31d9043c07bea7346f966		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBBE6 5236 bytes
font_01_sfnt_off0000cd99.bin
945e36d1b4426e30a7377613c960c63d80af956569ff74cdd7bbfbc26fad7db2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD99 15476 bytes

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