Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d2185027521bbde…

MALICIOUS

PDF

39.7 KB Created: 2020-11-04 21:01:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 9f694e9ab5850e9f8795b8a2f1f234aa SHA-1: 01dd52b70cd3e1ec7aff179fd8227d6b66708e28 SHA-256: 3d2185027521bbded33075a00ea2893c661477b19b5c12d651aebf223d0d4253
124 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.
  • 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://ggtraff.ru/aws?keyword=josef+originals+figurines+ruby+lane In PDF document text
    • https://bulasenojagaroj.weebly.com/uploads/1/3/4/3/134357248/7500016.pdfIn PDF document text
    • https://suzokixuvajix.weebly.com/uploads/1/3/0/7/130776208/9432423.pdfIn PDF document text
    • https://gewaxuselez.weebly.com/uploads/1/3/4/2/134265722/zaxufuxenixixuzixewe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422909/normal_5f98ad7ed8d68.pdfIn PDF document text
    • https://sekojeti.weebly.com/uploads/1/3/4/5/134583019/7858208.pdfIn PDF document text
    • https://zadumeredevasax.weebly.com/uploads/1/3/1/4/131453870/badisiw-xerasaxofug-sovoxafanopa-sodufejo.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/1423781.pdfIn PDF document text
    • https://kupifibadobibe.weebly.com/uploads/1/3/4/5/134512214/7376165.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://s3.amazonaws.com/zedilegol/zajuwojoxurubabalasole.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/25253849978.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c04aabb-2595-497f-ad66-51cdc9ec3003/murifodaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fdcc118-b164-42bc-b190-34b733ae15d1/42154942117.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/jathaka_alangaram_tamil.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_off0000509d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x509D 4968 bytes
SHA-256: 6fd2c3852ad4ecb3a99c274d09f2b1962aee7240a3c0dc71df60794968a37f1b
font_01_sfnt_off0000618d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618D 10060 bytes
SHA-256: 1e015bc268b59cf9c05c13b59605380ddd432624d4f90240252bd2dcf2fb6f6c
font_02_sfnt_off000083fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83FA 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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