Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dab091d0fd1f7f7…

MALICIOUS

PDF

70.7 KB Created: 2020-10-25 13:40:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 1249ec4579a90dfb51a6d8a6510299e6 SHA-1: d5627d132070d6ffea57c7b12bb0b24d58af43d9 SHA-256: 6dab091d0fd1f7f7d979551de4049473ed813b5ab362d0bdee2f0e7155513dec
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/aws?keyword=acting+career+101+pdf In PDF document text
    • https://topodomero.weebly.com/uploads/1/3/2/6/132696018/ratozegesigikova.pdfIn PDF document text
    • https://mijisurux.weebly.com/uploads/1/3/1/0/131070147/1814063.pdfIn PDF document text
    • https://norumevi.weebly.com/uploads/1/3/0/9/130969469/gavomejiko.pdfIn PDF document text
    • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/3641505.pdfIn PDF document text
    • https://tiposowa.weebly.com/uploads/1/3/1/1/131164246/2082233.pdfIn PDF document text
    • https://jinezosibe.weebly.com/uploads/1/3/4/4/134454760/1487134.pdfIn PDF document text
    • https://vapesokon.weebly.com/uploads/1/3/4/3/134329795/subuzijute.pdfIn PDF document text
    • https://dojulukasinu.weebly.com/uploads/1/3/0/7/130776790/bivapinoj.pdfIn PDF document text
    • https://vegilirebaj.weebly.com/uploads/1/3/1/0/131070576/7f2b4a6a7222.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/1/0439/3598/9915/files/dodelapogorupojat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2449/0397/files/92569978862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2804/4698/files/education_week_2020_ideas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a39777c8-1989-4503-af04-bebc2e34c3de/4928253134.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12f95b93-16c2-4c59-8dae-9fab31a6bc94/89135487184.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6edb5323-590f-40b7-8a02-600885de385e/53895446596.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bedc4fe0-21f5-421b-8b4d-a135a7fab25e/iphone_x_ppi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9425226-c6a5-46c4-953e-5aba6b59d200/42451775409.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3f45a30-8e2b-472d-9be2-a457818c787e/66551128526.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_off0000d5d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5D2 5296 bytes
SHA-256: 08e4fcca6043c39febb7357fceb55eae606e58081adce0dcb333913e42cb63a5
font_01_sfnt_off0000e7dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7DD 11008 bytes
SHA-256: e1f252ff4fc7c39f64362c41992f7445ba2c8ee240064b9f7ab4006c562639c5

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