Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeebe6c6e2673463…

MALICIOUS

PDF

37.6 KB Created: 2020-10-26 07:07:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: f7ec515acabaaa8c10cc84076920b49a SHA-1: e1daaec4c76dfb6eb6f1554ed9d360bc00f1bdce SHA-256: eeebe6c6e267346348e04383ad6aea18382c25b5b7e9194e2c406fe95725e149
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.link/pify?keyword=prescribing+guidelines+in+psychiatry+12th+edition In PDF document text
    • https://cdn-cms.f-static.net/uploads/4403541/normal_5f96277516f23.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371025/normal_5f886ff5f1136.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366331/normal_5f8746318f077.pdfIn PDF document text
    • https://getedizexagan.weebly.com/uploads/1/3/0/7/130740146/1989291.pdfIn PDF document text
    • https://biwugina.weebly.com/uploads/1/3/1/1/131163984/nelelonasu.pdfIn PDF document text
    • https://tekegalesi.weebly.com/uploads/1/3/0/7/130740489/1088394.pdfIn PDF document text
    • https://gomemetunugup.weebly.com/uploads/1/3/2/7/132712315/mojawonup-sinaj-midunolubixuni.pdfIn PDF document text
    • https://rokufekajo.weebly.com/uploads/1/3/0/8/130814342/wetevadabaguko.pdfIn PDF document text
    • https://kezopepeza.weebly.com/uploads/1/3/4/3/134332650/afab439b.pdfIn PDF document text
    • https://suganolorifumu.weebly.com/uploads/1/3/0/8/130814011/napom.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005496.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005496.bin)
    • https://cdn.shopify.com/s/files/1/0435/3071/5288/files/comparison_worksheet_for_grade_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9411/4465/files/world_of_warcraft_classic_shaman_macros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/9177/5654/files/download_avg_antivirus_pro_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4899/files/20869853209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1966/3522/files/graco_backless_booster_seat_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/27639742430.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/seamless_pipe_schedule_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/common_english_words_with_meaning_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/anacardium_occidentale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d14272a2-0a2b-416d-b081-0beada7e8bf3/68305191147.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10850be4-857a-4104-aad7-87b58d3ee1a4/65366085510.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/192b62f9-350f-443c-9369-ac84c9064b0c/mijavaxumate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e86168d-c229-403c-b83c-09ba52b7c316/64970988848.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efbede53-f5c9-47fa-89c4-3f8adc350666/4496796043.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_off00005496.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005496.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5496 5760 bytes
SHA-256: 96c68946e0b1576607b8d554908eddb19ad1d9b570c9031d7dc5063d653a7195
font_01_sfnt_off00006821.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6821 9420 bytes
SHA-256: eaa36a152a2d9e8bb2ca3751ae2c02ec899c856ba44083be6f1d166c20b2de53