Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d9058b2ac2dd517…

MALICIOUS

PDF

41.1 KB Created: 2020-10-31 23:21:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 707638cc55a5f10b69cc1a8f6ab7c0ec SHA-1: 2179e34f008e8d5237f603f4a8e706d36495abf7 SHA-256: 6d9058b2ac2dd5174af250a37ad6293172b7c9ddb7ad175084a084c832fc9263
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.cc/123?keyword=relic+watch+manual In PDF document text
    • https://ruxozixukev.weebly.com/uploads/1/3/4/4/134449962/9d21798b34078.pdfIn PDF document text
    • https://gonerogad.weebly.com/uploads/1/3/1/4/131438616/5c35e9d.pdfIn PDF document text
    • https://fipuvulozubonoj.weebly.com/uploads/1/3/4/3/134313175/2e6f08e104.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368475/normal_5f8e66789e3ae.pdfIn PDF document text
    • https://fulojozizarotuv.weebly.com/uploads/1/3/4/3/134318677/fcdb729b0d.pdfIn PDF document text
    • https://kakawugob.weebly.com/uploads/1/3/0/9/130969990/3c760.pdfIn PDF document text
    • https://luvumape.weebly.com/uploads/1/3/4/4/134438520/sanonerij.pdfIn PDF document text
    • https://xusawoji.weebly.com/uploads/1/3/0/7/130739635/kaleb.pdfIn PDF document text
    • https://lonodoxelu.weebly.com/uploads/1/3/4/3/134305804/6075004.pdfIn PDF document text
    • https://terarawuterojuz.weebly.com/uploads/1/3/0/7/130739827/wumilomuba_wamokoguza.pdfIn PDF document text
    • https://nipufijupetobug.weebly.com/uploads/1/3/1/4/131482996/kawudadupug.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/2879/3512/files/90143955654.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5480bf8-5c2c-401b-aeaa-12bc776d0c0b/rabutajakuzeguf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74211a66-8eb5-4ca4-8766-c3a02df0222c/jasojawepowofapite.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CB 4864 bytes
SHA-256: 9f971e34ad470bb3605c1666041e28791d37e0891385c6976edea6f2f2fe2b7f
font_01_sfnt_off00007447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7447 10512 bytes
SHA-256: 8ade26316932c525281235f2300a3bf2a0ae435a306133fecd64f92f42db93e3

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