Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c542d3380de7767…

MALICIOUS

PDF

36.2 KB Created: 2020-10-30 11:01:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 5ae3e15fb5b8b18458d3fa397cd62231 SHA-1: 72206b5e10b53f05f632b668143291e49bf4b17c SHA-256: 1c542d3380de7767a437bfa0c427a90b7f2398ea1634151b2ad39c8608bd0bef
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.cc/pify?keyword=icy+tower+unblocked+weebly In PDF document text
    • https://goduvozimaku.weebly.com/uploads/1/3/1/3/131380582/0f1d81c0d981.pdfIn PDF document text
    • https://vodemilofokuse.weebly.com/uploads/1/3/4/2/134235674/852e82ec3.pdfIn PDF document text
    • https://fapifejoj.weebly.com/uploads/1/3/4/2/134265577/13362.pdfIn PDF document text
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/sezexo_baboxixofe_dafuxorufow.pdfIn PDF document text
    • https://nosekuge.weebly.com/uploads/1/3/2/7/132740467/8af379cfbb02.pdfIn PDF document text
    • https://bipinutafo.weebly.com/uploads/1/3/4/3/134358532/nelupuwu.pdfIn PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/1eab62364eda.pdfIn PDF document text
    • https://repugonajipivup.weebly.com/uploads/1/3/0/8/130814926/kugedunaxosasot.pdfIn PDF document text
    • https://sazaxadapu.weebly.com/uploads/1/3/4/3/134330736/6022427.pdfIn PDF document text
    • https://retinagarar.weebly.com/uploads/1/3/4/3/134319249/6733287.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/pomaka.pdfIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/avionics_certification_a_complete_guide_to_do-_178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/0647/4420/files/lowixulisoxaxozilozukaraz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/7438/6618/files/nosovobalapaxuji.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_off000053d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53D9 4880 bytes
SHA-256: 0d3cc012a7f19ea3affe4aa29bccf0e7e7e529ce41be4627e1e5f1802103e5cd
font_01_sfnt_off00006499.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6499 9300 bytes
SHA-256: 7e94e199c038fdf92d212d6401cf4adab665c483c64d9b2368b0f1d8b86b144c

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