Malicious PDF — malware analysis report

Static analysis result for SHA-256 66affee023a02e76…

MALICIOUS

PDF

44.4 KB Created: 2020-10-25 05:13:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 7e62a3fa2abafa55649f53d8ef305e03 SHA-1: 5b782e2d6130b428ded88f4f1292352084997d68 SHA-256: 66affee023a02e7616644aa15221035acdd5668f394a1ba93265d1fc0218f491
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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://ttraff.link/pify?keyword=garmin+striker+plus+4+transducer+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4376869/normal_5f8c3f9da8148.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367286/normal_5f883815cb6a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409806/normal_5f92fa5cf1110.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376096/normal_5f91176beef50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367674/normal_5f8c26682e38d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374369/normal_5f92b5e96c4d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366020/normal_5f87566ce0850.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384036/normal_5f8f31d79abb7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367642/normal_5f8d06a36d258.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368485/normal_5f8f45753dd1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383574/normal_5f8ff6aeee4d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372982/normal_5f94a7a2e3852.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382429/normal_5f8b6ed85579a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f870352bc8cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368732/normal_5f8c3e326c428.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369630/normal_5f8cb197749a6.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://cdn.shopify.com/s/files/1/0434/7245/3784/files/71758767655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0469/8534/files/wemonikeduxajez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3876/0342/files/dagunimada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/3739/1510/files/98830098619.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d0ccfec-5370-47d8-a13d-c83b19802d9f/22414975215.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eba01573-9328-4182-8ecf-d977348e7aea/31432581617.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_off00005e36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E36 5176 bytes
SHA-256: ae69cea9f1f013d01530489d36097bb30bc4e1201bd063b20f46922d4d2ea1b8
font_01_sfnt_off00006fbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBE 11604 bytes
SHA-256: bb02076e47c3884b6f26da59039cbfdb51e09d9c4fd9033db8fa80690eaaee38
font_02_sfnt_off000095d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95D1 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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