Malicious PDF — malware analysis report

Static analysis result for SHA-256 578e5c0fea0c8f24…

MALICIOUS

PDF

44.2 KB Created: 2020-10-27 11:24:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 48573cb9f7bd11a560e9168a24f8999a SHA-1: e3dc9e98083becfb74275484c8ab77f04387fc82 SHA-256: 578e5c0fea0c8f24cad24c3913c41d5581e80748b56af219b1517970f1e178ad
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/123?keyword=rise+of+tiamat+pdf In PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/serapa_gosivotun_sadona.pdfIn PDF document text
    • https://xibogunef.weebly.com/uploads/1/3/1/3/131398295/2964e66e93.pdfIn PDF document text
    • https://kisogegexene.weebly.com/uploads/1/3/4/3/134374262/2267259.pdfIn PDF document text
    • https://raxuzorufureraw.weebly.com/uploads/1/3/0/7/130775378/7078940.pdfIn PDF document text
    • https://lafapimiwegu.weebly.com/uploads/1/3/4/0/134041150/keburefixujofazimal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379489/normal_5f9375bf0fee2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408593/normal_5f9724e4e98a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382780/normal_5f8db5e858fa6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365583/normal_5f89216a857ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377928/normal_5f8f68cb47cd3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369630/normal_5f8c96945a529.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365653/normal_5f873894358b4.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006e12.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006e12.bin)
    • https://cdn.shopify.com/s/files/1/0504/2162/9102/files/cotton_shorts_womens_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8904/4651/files/xobatovotavoxunelewup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6787/3701/files/microbiology_with_diseases_by_taxonomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/8650/1806/files/44968240382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0091/4343/files/history_1302_exam_1_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7613/4082/files/81524150518.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/respiratory_alkalosis_treatment.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/indian_agriculture_information.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_off00006e12.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E12 5068 bytes
SHA-256: fff4edacf2955f6223b946dd6e3bf59d4d09c98c7860d2876ada342bd9f4b1c0
font_01_sfnt_off00007f44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F44 10720 bytes
SHA-256: c5816089e09bd15983ef3563632669b555139b27e025220515fea8025fd2928e