Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c57d577419b9f5b…

MALICIOUS

PDF

46.5 KB Created: 2020-10-28 11:47:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 677b60c267ca1b40eb23a487e238e190 SHA-1: a6a0b43adac8289e4e241248420f16295b09f671 SHA-256: 6c57d577419b9f5bafe5a93880bc63d0b886d7872600ae54701a77f6adc0eeb6
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://cctraff.ru/aws?keyword=5+pin+bowling+usa In PDF document text
    • https://cdn-cms.f-static.net/uploads/4371787/normal_5f8e5bf1c3ebc.pdfIn PDF document text
    • https://megeleju.weebly.com/uploads/1/3/4/3/134319984/jekorew.pdfIn PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/dcab2e3fd7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373304/normal_5f8ab53557163.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374699/normal_5f8b9895f26bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378604/normal_5f91954686e40.pdfIn PDF document text
    • https://kenilajapa.weebly.com/uploads/1/3/1/0/131069910/welutemavaluli_rinudiladun.pdfIn PDF document text
    • https://rezizeme.weebly.com/uploads/1/3/0/7/130775554/70f77a9bf0ac1db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413019/normal_5f96ccc51fbdc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385415/normal_5f916142cba31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370055/normal_5f88bc68c5655.pdfIn PDF document text
    • https://tofejigijo.weebly.com/uploads/1/3/4/3/134312142/6157825ca7067c.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000075a8.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000075a8.bin)
    • https://s3.amazonaws.com/pasawexawinogad/dcouper_un_fichier_en_plusieurs_pages.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28eba597-b239-48c7-8d80-70b3350c7d7c/97832200544.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/xufuwod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/365f2951-afd5-43a6-9014-60c40086056c/noxifaxadexatipapevobe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a922223c-556a-44de-9c60-6f082ed4d787/xadutixefifas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a2bcb81-4799-42c8-9c5b-20dd83b36a0b/vermintide_2_kick_player.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1aea9518-0c37-42bf-86d2-ec17357e0781/23269487617.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 extracted file (font_00_sfnt_off000075a8.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A8 5152 bytes
SHA-256: 0815bef520379fccf6e67562dbbefea510310cfc4fe65e261c6d14f01845fd02
font_01_sfnt_off00008754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8754 11052 bytes
SHA-256: 22bfeab35dbe2030094d08bab55589dba62649979d376a7eca3ef63c3619a5a8

Open this report in the interactive analyzer, or submit your own file for analysis.