Malicious PDF — malware analysis report

Static analysis result for SHA-256 e06183b4444e5437…

MALICIOUS

PDF

70.0 KB Created: 2020-10-25 12:55:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: d9995ced684e4927337001adee73b7d5 SHA-1: c1a07ec0db2190b392dd72e2382a217787dac3b4 SHA-256: e06183b4444e5437842e655fb818e860eab9f78345b82189b6e0b9271abebb1d
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.link/123?keyword=forex+divergence+strategy+pdf In PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/fukavatajosaxa.pdfIn PDF document text
    • https://kagizorofom.weebly.com/uploads/1/3/4/4/134476017/52c09fcf530.pdfIn PDF document text
    • https://bivovipolever.weebly.com/uploads/1/3/4/3/134347360/namoj-bejidazuzavi.pdfIn PDF document text
    • https://xumabilere.weebly.com/uploads/1/3/1/1/131163638/5114492.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000d0ef.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000d0ef.bin)
    • https://cdn.shopify.com/s/files/1/0488/2854/7237/files/mudosafoxowigazepifug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1945/2072/files/xafexesomovirusidifebapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3707/2794/files/meragukivazekafanofobata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0890/0768/files/forumias_prelims_test_series_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8797/6864/files/keninirore.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/zebopizija.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/21417228812.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6be388f0-a06f-4b71-966e-bffb6b99d542/primera_sesion_consejo_tecnico_escolar_primaria_2017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5467d65b-a020-424b-822a-92231875cbf7/5540614238.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef98ac2b-c6c0-4f7c-afdd-9580025cd59f/bilamixonizukojusaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01aacbce-4a28-44d3-b2f7-34a240d1df7f/tijikesatisugunazomexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8746/9471/files/real_grape_juice_for_stomach_bug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/5721/5166/files/gefupusod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/9552/3227/files/66438061379.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f68e8a14-02af-4344-8dc5-acedb7195faf/35115075639.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4714a2f-a51d-404f-a6dd-6bcbfeb59f1d/xuzibinunurodom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad41d883-487d-47bd-8fbb-403b7b87b429/que_es_geometria_plana_o_euclidiana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d282f557-e3f4-4051-8d33-a3474e218501/xuriju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd80cb18-1936-486d-aa00-4c82616b0790/4157844750.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 extracted file (font_00_sfnt_off0000d0ef.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d0ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0EF 5476 bytes
SHA-256: 9ede5ee2d2e3699f402f94dcd56ef2844bba452f8ef391b203b8c7fedf2fe0c3
font_01_sfnt_off0000e3b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B4 11232 bytes
SHA-256: 6029cc9b0c31fe7de185976f5096105ad9ba2966119c87cbefd93e533e2cde7e