Malicious PDF — malware analysis report

Static analysis result for SHA-256 b83222ab1aa926d1…

MALICIOUS

PDF

38.7 KB Created: 2020-10-15 08:44:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d402037765c012499a2a5cbe1125443f SHA-1: e289adc5a3cbeb82b78759fad1690bb5aac9fac3 SHA-256: b83222ab1aa926d19322e98b3904aecb0fccb1905ab8c988505fb4baa2a9cddb
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.club/pify?keyword=colour+coded+quran+pdf In PDF document text
    • https://xanodupujariris.weebly.com/uploads/1/3/0/9/130969381/muresajuvarukepu.pdfIn PDF document text
    • https://rolosakuzorega.weebly.com/uploads/1/3/1/3/131379035/3a08eab74fbcd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366369/normal_5f873f6464018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365591/normal_5f872b122d86a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369514/normal_5f87c93e701f3.pdfIn PDF document text
    • https://site-1040135.mozfiles.com/files/1040135/tafapewibudepolex.pdfIn PDF document text
    • https://site-1043941.mozfiles.com/files/1043941/80145620204.pdfIn PDF document text
    • https://site-1039493.mozfiles.com/files/1039493/64705909117.pdfIn PDF document text
    • https://site-1038938.mozfiles.com/files/1038938/ribow.pdfIn PDF document text
    • https://site-1038337.mozfiles.com/files/1038337/55769849070.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366406/normal_5f871b054788d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5f8708b25a689.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368225/normal_5f87b5a50291e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365628/normal_5f875ea5a2d94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368978/normal_5f87a6e3822a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367640/normal_5f87c13c86f72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5f86faa49045f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367005/normal_5f87318cb8fab.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/1/0429/4973/8650/files/place_value_warm_up_games_ks2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8566/9279/files/ce_rohs_smart_watch_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5287/4390/files/60313737833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4378/1788/files/jefferson_medical_school_tuition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0892/0222/files/dd_3.5_cleric_domains.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_off00005a80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A80 5000 bytes
SHA-256: 6481c2ffb657819a726dfa7d7a26291d52eef153a2631abc766e2d91759a958f
font_01_sfnt_off00006b89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B89 9880 bytes
SHA-256: 4330fb97dc80694268ea20910220f959bf8eb5adbd8f99a598913c7868715ec8

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