Malicious PDF — malware analysis report

Static analysis result for SHA-256 014c51d552183633…

MALICIOUS

PDF

48.2 KB Created: 2020-10-18 03:46:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: af4fd0121b208e98ef9130c9720fcafb SHA-1: 5c40d901eb067f398634e876bd0aaa3579a52114 SHA-256: 014c51d552183633877d729b91b3a7f60a2e11784acd0863eebfa443e709f947
194 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.me/123?keyword=kenmore+dishwasher+manual+587 In PDF document text
    • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/fukefarabu.pdfIn PDF document text
    • https://sovopubi.weebly.com/uploads/1/3/0/7/130775052/lixusewasaxaxa_nosesijuro.pdfIn PDF document text
    • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/2c41886a7012.pdfIn PDF document text
    • https://dumejolizaxoko.weebly.com/uploads/1/3/0/8/130814858/tutiredonijosereli.pdfIn PDF document text
    • https://tugajepefur.weebly.com/uploads/1/3/1/4/131453805/bb8118b76040e48.pdfIn PDF document text
    • https://fawefugixizim.weebly.com/uploads/1/3/1/3/131383791/tetawewi_papewogumud_xojafad_muxomaxek.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/gufis_rurujidopeta_mazujogimov.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/ff06dfdf.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/pokobu-pidoror-pekirez.pdfIn PDF document text
    • https://rajaxamakato.weebly.com/uploads/1/3/2/3/132302926/7039779.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/baputedev.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368230/normal_5f87866c2481e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366360/normal_5f8b7ee660faf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379616/normal_5f8b399ea5e28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369313/normal_5f892ea9bcc46.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366034/normal_5f87f33a2f183.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/1/0482/8010/9218/files/peer_edit_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5145/6411/files/open_workbench_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6982/3390/files/754546633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0470/9937/9862/files/asparagus_stir_fry.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea988ec4-874e-42c9-8885-1a458b8a092f/gudixogagajutuninisogo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/391843b2-4cf8-4f63-96e9-637ce6ccf560/rupefotudewoxolibazuzaxan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8bc3eed-b0b9-4a87-abec-775f95926668/tabela_de_rosca_unf_interna.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02478bd1-ad1f-4741-ab6c-e0791a4c417f/geotrax_grand_central_station_instructions.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_off00006ed2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED2 5324 bytes
SHA-256: 58571aa4945ea64b044ecaec2e393745934f6cd9aa3a08e3944905d199a4973e
font_01_sfnt_off000080ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80CE 10636 bytes
SHA-256: 19a96c9247e7c54cf891a509cd65460405f55b0cc5a70fbae3a726d24355ece4
font_02_sfnt_off0000a536.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA536 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3