Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ebda039708d2eee…

MALICIOUS

PDF

61.8 KB Created: 2020-10-07 17:47:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 779d1906e345e4c18df64a2871c4127a SHA-1: 3e256a939071d083713f29cb662d2917269badaa SHA-256: 0ebda039708d2eee5a42c89ee03d689fa6e3d20134396da936ec80ba1ec88d8a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links and document body text that direct users to a malicious redirector URL, disguised as a link to a popular movie. This is a common lure for phishing attacks or to download further malicious content. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.club/pify?keyword=google+drive+the+lion+king+2019+full+movie In PDF document text
    • http://files.otowpcclub.org/uploads/1/3/0/7/130776680/setofulidip.pdfIn PDF document text
    • http://dekuxel.thesurflodgesanctuary.shop/uploads/1/3/1/6/131606875/c71bbabca8e9fd5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/0562/6536/files/bijugemon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7574/7483/files/16895461056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7115/2023/files/standard_enhanced_pci_to_usb_host_controller_yellow_exclamation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/2316/6371/files/my_immortal_evanescence_lyrics_in_spanish.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5592/1817/files/autometer_oil_pressure_gauge_sender.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4136/3870/files/bni_visitors_day_tips.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/3767/1848/files/taborasogikazawarejapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3182/9412/files/5229198539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9598/4795/files/zatofurilugurepuwina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2470/9782/files/vecinos_telenovela_captulos_completos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3649/1431/files/80633337390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9148/7645/files/30179214941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/6238/9667/files/76068920691.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_off0000a1bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1BC 5568 bytes
SHA-256: cea8e81bc632b01023edace2c7e82f77c5846114d603117e77042d9e01a4691c
font_01_sfnt_off0000b492.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB492 3876 bytes
SHA-256: 36d9bfe94c7f027f2f9885a0c9f821d05c8149d1bcffba97e80285853954c05d
font_02_sfnt_off0000c3c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3C7 11128 bytes
SHA-256: 678524811d7bc4c8c647c9ec1b52ce0ef7ccd9038ca798a95b325c31e0d050af

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