Malicious PDF — malware analysis report

Static analysis result for SHA-256 b08dee02c1bc57b2…

MALICIOUS

PDF

58.8 KB Created: 2020-10-26 00:27:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: f67837432a93d7c969f83c17d804edd7 SHA-1: fb5e05869486acd39fe9a3fc7b372ca3c67083a2 SHA-256: b08dee02c1bc57b2be6404f2391db124c69373649bc54ee8cf7f40d770b9bbbc
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://ttraff.club/pify?keyword=manual+labor+meaning+tagalog In PDF document text
    • https://mivosubewo.weebly.com/uploads/1/3/1/4/131407796/nepusu.pdfIn PDF document text
    • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/14a278.pdfIn PDF document text
    • https://xetutinafo.weebly.com/uploads/1/3/0/7/130775845/bagin.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/sixukejomiwewanage.pdfIn PDF document text
    • https://suganolorifumu.weebly.com/uploads/1/3/0/8/130814011/bc71e621f30cf1.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/62b4f1c8-61ef-4917-babf-9b800e9d9e80/jurassic_world_crack.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3a0f973-919f-4cfe-bc30-dba606aee211/64765969742.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e611935e-2858-4bde-89d6-44a43e0218cf/star_trek_ships_blueprints.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4dde35a-112c-4d95-8ad1-d8319f134626/libro_matematicas_1_secundaria_casti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ecb30f1-20da-46ce-8983-f897664ff4a3/sonozi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8d7b22c-c450-4039-8cd5-a9de2b1c1077/the_heirs_ep_14_eng_sub_viki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a341f112-00f2-46d4-9780-ee98305660c7/35700963176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/7469/9431/files/lerelaxuviralekikez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8494/6850/files/pr_vademecum_colombia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/2810/1304/files/ensear_a_leer_y_escribir.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/different_periods_of_english_literature.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/gukowut.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/sekegunofojabarumate.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/2525748059.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/sonaresorozugapimadebe.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/zarudoxadiwiga.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/pulikubujigamapojav.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/84943951806.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/7323670563.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_off0000a852.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA852 4972 bytes
SHA-256: 4ba7ae60b6f940dccac927519cb617959761cba2797dfa2b5f2acd2d3d2366ec
font_01_sfnt_off0000b92b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB92B 10920 bytes
SHA-256: 69578a988c3fd7e851ae8f185556fb8b7230ad4c26eddf50e89561894347b7d3

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