Malicious PDF — malware analysis report

Static analysis result for SHA-256 09940aad7bdd3854…

MALICIOUS

PDF

48.8 KB Created: 2020-10-21 13:27:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 06df8965fced233c7973f57b77f91b16 SHA-1: 76b0e4ce5154e02ed03564e647c1fe3db11add48 SHA-256: 09940aad7bdd3854862ed447d97843a6006f3c28a2429a03923e7f1baa06d87a
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=politique+%25C3%25A9conomique+et+sociale+pdf In PDF document text
    • https://temazojirilezin.weebly.com/uploads/1/3/2/3/132302863/wuxulapitaram-wimalix-gubonudo.pdfIn PDF document text
    • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/kifurilaxajap_vazuzoforir.pdfIn PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/muluk.pdfIn PDF document text
    • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/c7dfbd327.pdfIn PDF document text
    • https://kakawugob.weebly.com/uploads/1/3/0/9/130969990/jisosabasisowopapap.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/sunexixakuro_kuxudilimasufu_wowilim.pdfIn PDF document text
    • https://ponixojezunuto.weebly.com/uploads/1/3/0/9/130969897/binugavun.pdfIn PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/xezatet.pdfIn PDF document text
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/fa0533.pdfIn PDF document text
    • https://mufalugibesenu.weebly.com/uploads/1/3/1/4/131453255/6265530.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/palaj_xofepevez.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007bad.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007bad.bin)
    • https://uploads.strikinglycdn.com/files/a391fee2-5023-4629-b529-e52c7cde6328/35423841144.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cc68f4a-2947-404e-a016-e45daa67b1dd/23722491007.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d2632a8-ba63-4e6d-b7f7-7c2c36ea5eac/rimagasiravelosiriwusivob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52d3c642-cb66-46d4-99a1-16db898820db/sur_le_vif_chapter_5_vocab.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/47621781889.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91205d96-0f05-4ec5-824a-2091e408a815/giduvonefetagonarozivatak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d0b3c0c-d99b-428e-8483-7fe7aedbffb5/2840112445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab5d62b4-7828-423f-886a-ebb6fdf46753/nelufolojidafusavi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55f108f7-284c-4900-9e78-f37ef028182d/nepujosazapemimabef.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_off00007bad.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007bad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BAD 5476 bytes
SHA-256: bdccbabad5f81ec709ae00519fb6951bad48084700a0f91f466dc812e0ab58e7
font_01_sfnt_off00008df1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF1 11924 bytes
SHA-256: a288580eec92aa2526d9757dd5e3fa1e46a293df1894be63ef3536ddce36a4c4