Malicious PDF — malware analysis report

Static analysis result for SHA-256 74778e0d3139663d…

MALICIOUS

PDF

50.5 KB Created: 2020-10-07 07:49:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 95d2d8e3f0083a7581e4b3e9911434f6 SHA-1: 760083e7561e768997293a4d285b28aa21d8be6e SHA-256: 74778e0d3139663da042ae8dc46f48ba2f2027b4b6acf1a98ef246165d4a153d
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://gettraff.ru/pify?keyword=living+a+feminist+life In PDF document text
    • http://xegag.violinmusicbywomen.com/uploads/1/3/1/4/131483067/tatojom_gajovun_regejiri_xumugokekilo.pdfIn PDF document text
    • http://files.marciahammond.com/uploads/1/3/2/8/132815306/kalifasu.pdfIn PDF document text
    • http://lonupaji.jessiebrownphotography.com/uploads/1/3/0/7/130739860/zilawu-mewubozuxuvet.pdfIn PDF document text
    • http://kesame.nrcdubai.com/uploads/1/3/0/9/130969198/gakira.pdfIn PDF document text
    • http://files.sensibleshock.com/uploads/1/3/2/7/132740479/vasesejakukek_faxej_lelikam.pdfIn PDF document text
    • https://site-1042284.mozfiles.com/files/1042284/muduwo.pdfIn PDF document text
    • https://site-1043530.mozfiles.com/files/1043530/mutiwo.pdfIn PDF document text
    • https://site-1038738.mozfiles.com/files/1038738/bisugeda.pdfIn PDF document text
    • https://site-1042095.mozfiles.com/files/1042095/texezozatidil.pdfIn PDF document text
    • https://site-1037262.mozfiles.com/files/1037262/sajuxot.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/9c489626-7c52-40a0-8152-47ec6baa61d3/99858434587.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/250a9fdf-fed0-4a15-8b6d-81fa6b3e2a32/vajotadimiguvo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b0bd13b-eff5-4146-a7f4-77b66fe58509/zonaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e55f3073-34fb-49dc-afa6-4795ab1d79b0/gukenanamoga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1546287-7f98-4d52-b865-24d5b63993f1/39899537662.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69a25645-ce02-4866-b322-db54a44a7af9/25833447714.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc95f84d-1a49-4167-a31e-4411faae1f91/juraga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87fc092d-ea38-44e5-8e23-49b1b09f0424/86378256168.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_off00008804.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8804 4992 bytes
SHA-256: 8c87258e2ae70c1589d88e051619af0c51f02df094f97d67cfa52dc5b9bf4c75
font_01_sfnt_off0000990a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x990A 10488 bytes
SHA-256: aa7261787ef07c8794d44534e7fe0f1d5c68c4e57fe0e50760e1cfcfd0b0087a

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