Malicious PDF — malware analysis report

Static analysis result for SHA-256 e002a22800f4fe00…

MALICIOUS

PDF

47.2 KB Created: 2020-10-12 03:31:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e1c40206299ca912185223565392ec0f SHA-1: 301a946de64d0438c2b08827d7058865cd2c824d SHA-256: e002a22800f4fe0027bacc8b42a7f5384bd09ad1b7c5ba419a331e7d035968a5
134 Risk Score

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ggtraff.ru/pify?keyword=fish+in+a+tree+comprehension+questions+pdf In PDF document text
    • http://files.noemiddleschool.net/uploads/1/3/1/4/131406780/9504701.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/cc26f0d9-ed9f-4d2d-a02f-8cbd24fac766/83919760847.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4a04360-3bd7-4021-b2a5-2b8d4728a5b2/lanoboserofaziremubumiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93ba2434-3dc7-4716-9c3e-2761d87c0e77/57443625531.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97935e8d-aa22-47b3-98fb-c43f852da5c9/dafoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/9280/7331/files/84793911595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/2780/7646/files/dosukexevovazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4540/4327/files/71813302934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/4306/5503/files/justin_chancellor_bass_solo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/3555/7794/files/60987043488.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C85 5324 bytes
SHA-256: 3dd77d1f7b469d5fa63092531d3cae660ff896a863fd493c8c74052c55258f70
font_01_sfnt_off00007e5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E5B 10352 bytes
SHA-256: a5c86ce12a634d2f226cb6861f3bfe72d79547f219deb9e2c817b3f5ac89e9ff
font_02_sfnt_off0000a1b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1B3 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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