Malicious PDF — malware analysis report

Static analysis result for SHA-256 710d843d22696b71…

MALICIOUS

PDF

56.9 KB Created: 2020-07-31 06:45:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b3e3c555b651c11486a896baf74db74 SHA-1: 9e3b0e36783700ad2dcf29564ddaa20ba16fb967 SHA-256: 710d843d22696b712d23d8549a7de8c6af08936145402d3a41c724a083691a2c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to known malicious redirector infrastructure (ttraff.com), indicating a likely attempt to lead users to malicious sites. No scripts were extracted, but the presence of embedded URLs and the ML classifier's high confidence suggest a malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=anunnaki+gods+no+more+pdf
    • http://files.readnis.com/uploads/1/3/0/7/130738748/6278097.pdf
    • http://files.afmsupplements.com/uploads/1/3/2/3/132302815/972851.pdf
    • http://files.craftchatterbox.com/uploads/1/3/1/4/131412032/1181163.pdf
    • http://files.ignitethejoy.org/uploads/1/3/1/4/131407051/jopazigo_xexesolowewajo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/6280/4136/files/wuziwilaxabinupezenuvovup.pdf
    • https://cdn.shopify.com/s/files/1/0432/0998/2107/files/zodepuwefidiruzilibig.pdf
    • https://cdn.shopify.com/s/files/1/0437/8371/7015/files/jiguseverowakuximibax.pdf
    • https://cdn.shopify.com/s/files/1/0435/4483/8303/files/74329447450.pdf
    • https://cdn.shopify.com/s/files/1/0432/7332/2664/files/xofelewivuxujexafas.pdf
    • https://cdn.shopify.com/s/files/1/0431/9641/6157/files/89386258640.pdf
    • https://cdn.shopify.com/s/files/1/0439/2534/0328/files/mozuduvifetikapuvipu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7490/2423/files/22576426279.pdf
    • https://cdn.shopify.com/s/files/1/0432/3259/2040/files/rizegonemofasabolulomada.pdf
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/vudobuwoparosira.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/dazumavokekoso.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a1bd.bin
fa9a2fa31285c194c8c5eba6ba6eae9000b192f8d3103a774386d6ecf5cbd277		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA1BD 5184 bytes
font_01_sfnt_off0000b340.bin
ca9c210b758cb036e495dbed74427cb2f11067aec4599d6182f9673581c7a779		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB340 10224 bytes

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