Malicious PDF — malware analysis report

Static analysis result for SHA-256 096546412f6a5299…

MALICIOUS

PDF

45.3 KB Created: 2020-10-02 18:13:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 2043c51d611138e3a45686c0daaaa8e0 SHA-1: df681080bda2476f607162d167aea9791892a584 SHA-256: 096546412f6a529986a3e1a65a8041bbecf1b28d4e5a6fc7a7d80706cdd5b302
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://ggtraff.ru/pify?keyword=mayan+cichlid+tank+size In PDF document text
    • http://files.traveltoasiaandback.com/uploads/1/3/1/3/131382113/gozezafewew-badegigo-zomopodibupeli-didodezowazona.pdfIn PDF document text
    • http://fawojogu.gunnessfinancial.com/uploads/1/3/2/6/132696280/13607d588ea4e.pdfIn PDF document text
    • http://files.longbeachfelines.org/uploads/1/3/1/4/131406885/vorujejaw_mogajopato_mezudosep.pdfIn PDF document text
    • http://kukaru.outruncanine.com/uploads/1/3/1/0/131070374/43bc8bb8.pdfIn PDF document text
    • http://kaxap.myfegm.com/uploads/1/3/2/7/132712661/5207056.pdfIn PDF document text
    • https://site-1037860.mozfiles.com/files/1037860/31773690285.pdfIn PDF document text
    • https://site-1036971.mozfiles.com/files/1036971/33713740557.pdfIn PDF document text
    • https://site-1037860.mozfiles.com/files/1037860/monatowabilovenom.pdfIn PDF document text
    • https://site-1039861.mozfiles.com/files/1039861/95512976618.pdfIn PDF document text
    • https://site-1037141.mozfiles.com/files/1037141/72807842823.pdfIn PDF document text
    • https://site-1036950.mozfiles.com/files/1036950/36566250421.pdfIn PDF document text
    • https://site-1037204.mozfiles.com/files/1037204/xalux.pdfIn PDF document text
    • https://site-1039897.mozfiles.com/files/1039897/83169085593.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00007501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7501 5152 bytes
SHA-256: 1d16e8601b18c4028c07712dc409800ec2c723d837573df776fcaddb76dba495
font_01_sfnt_off000086a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86A1 9852 bytes
SHA-256: 6371f21b588846854ce2234e8ab54464e6c67231d7dda735bc83978710fd4cc2