Malicious PDF — malware analysis report

Static analysis result for SHA-256 63ea49afe6b1610a…

MALICIOUS

PDF

49.7 KB Created: 2020-10-16 12:11:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e8131882c767dd89e2676cdf318d3d0d SHA-1: 7d83dd92c4df18a636d329d690787588202cab8e SHA-256: 63ea49afe6b1610a0ee5006467a529cbca47755a8e74cddac729052753f9d2d2
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://gettraff.ru/123?keyword=3+way+phone+call+android In PDF document text
    • https://ranerenonosojib.weebly.com/uploads/1/3/1/4/131483420/d870d367426.pdfIn PDF document text
    • https://tegugozitofo.weebly.com/uploads/1/3/0/8/130874592/rezonesivefo.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/lulodegoner.pdfIn PDF document text
    • https://riragojefo.weebly.com/uploads/1/3/1/8/131857115/85585e5d3f.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/foburadip.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/ee3d484850ba95e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368474/normal_5f88dde8bcfb8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369504/normal_5f88bf7bdd662.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365652/normal_5f875958daf85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366055/normal_5f89535201cea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374362/normal_5f891dad30031.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369494/normal_5f88950f73d57.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/9ff0a991-be4f-4db7-adda-a6e4362807f2/podovabozunakoga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5fbc2d2-5543-4583-8ca5-689a77257fa4/20702790184.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12704796-e4ad-4a27-be10-8bc2a7d20c27/furodijujakukekefuwabar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/faec9c75-15d5-40d7-bd0f-6e2d112aa84e/sekebogufewewidemikuvo.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_off00007660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7660 4956 bytes
SHA-256: 8aff3574c772f554e04a3ba6556b7c2225c301f444d5a877632226f9770c0992
font_01_sfnt_off00008725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8725 10652 bytes
SHA-256: 1dd098a9e2b85345db962c2da4c3a88fba1fd153850bd4e7916eac64b668136b
font_02_sfnt_off0000ab7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB7C 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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