Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dac1a43820da2e8…

MALICIOUS

PDF

40.5 KB Created: 2020-10-14 09:32:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ec6587cd19cb5439bace4c81735e2102 SHA-1: 67104bf5d59a8c516085de5dbc4bfc1794a42229 SHA-256: 0dac1a43820da2e8fdc8af7a27c195d4caa1068150c43a0963edd158dea3934c
224 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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://cctraff.ru/strik?keyword=aplikasi+convert+word+ke+pdf+pc In PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/porukofosu.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/3532345.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/divili_dapixi.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/1302795.pdfIn PDF document text
    • https://site-1036939.mozfiles.com/files/1036939/jatufepafubisa.pdfIn PDF document text
    • https://site-1036848.mozfiles.com/files/1036848/bimifub.pdfIn PDF document text
    • https://site-1038539.mozfiles.com/files/1038539/83802691907.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/61c3664d-bd70-4f30-ba10-d0f3622c4703/95539523900.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32dcd3f6-bac2-49ce-9153-02fa981e9b49/32073056097.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68f8760a-8a60-499d-a4ee-f4e632e8a783/66981764133.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64c1f40c-7d5b-4bd2-8bd8-642b9b1c43da/92106658371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/1744/9884/files/dbpower_9.5_portable_dvd_player_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/1862/8505/files/niwakekisomifokibikajodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/6738/7303/files/nunedudujajikuzej.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_off0000614d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614D 5352 bytes
SHA-256: 684147cf0471a359122ab835c20cfdb0c5aae3a1bcd0bf713597d662115ec44c
font_01_sfnt_off00007395.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7395 9948 bytes
SHA-256: 7e9abb53e9d3b3350618de2f2bc65d4cda82d71b7152425ecbbb5e71855184b8

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