Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc8e09d88944d036…

MALICIOUS

PDF

64.5 KB Created: 2020-10-01 18:54:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f7895ffa35b2da0b3b052299713d79c3 SHA-1: b51aa4f25ccdeb6e4f7d460e7e929f93b0c34a93 SHA-256: cc8e09d88944d036605f3de484e7224b4abded4c49938c89b7a041c90d16566a
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/strik?keyword=peter+drucker+books+pdf In PDF document text
    • http://tobopixut.authorjasoncook.com/uploads/1/3/0/8/130874683/c638a007528a51.pdfIn PDF document text
    • http://files.atoddlerandatopknot.com/uploads/1/3/0/7/130775181/496612b53.pdfIn PDF document text
    • http://files.funkyiceclothing.com/uploads/1/3/1/3/131383953/8009947.pdfIn PDF document text
    • http://bonulanap.tamenne.org/uploads/1/3/2/6/132695694/nilizikes.pdfIn PDF document text
    • http://files.thestudiosav.net/uploads/1/3/0/8/130814534/bufuse.pdfIn PDF document text
    • https://site-1038951.mozfiles.com/files/1038951/16576043879.pdfIn PDF document text
    • https://site-1039577.mozfiles.com/files/1039577/sosifubijupez.pdfIn PDF document text
    • https://site-1037282.mozfiles.com/files/1037282/64813139373.pdfIn PDF document text
    • https://site-1036868.mozfiles.com/files/1036868/741218386.pdfIn PDF document text
    • https://site-1038794.mozfiles.com/files/1038794/bewux.pdfIn PDF document text
    • https://site-1036939.mozfiles.com/files/1036939/dudojijiku.pdfIn PDF document text
    • https://site-1038913.mozfiles.com/files/1038913/tamoda.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0477/2977/0652/files/lasitarerurexoxazifitoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/3013/8010/files/japeguxux.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a64b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA64B 4840 bytes
SHA-256: bf812af43f802cba797e858eb7e92b291fe35aa0e2ac5d1a9cf11c25253367cf
font_01_sfnt_off0000b6cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6CB 15780 bytes
SHA-256: 2c5b68714f7d4952d31f7927969fbf7c4699196f0121eb7a6dee85e3767d53cc
font_02_sfnt_off0000e78e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE78E 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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