Malicious PDF — malware analysis report

Static analysis result for SHA-256 58359647f704f9d5…

MALICIOUS

PDF

48.1 KB Created: 2020-10-28 21:10:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 20a0b1e2a38d69ccd32a3728f72c019d SHA-1: 2c392ebaaeb6245df434fa87f6f908b81ffab15c SHA-256: 58359647f704f9d5a604b22436db34f2abd5c712a9a63ff0a435e5c65b58ed59
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://cctraff.ru/aws?keyword=currency+in+portugal+2020 In PDF document text
    • https://gozofuma.weebly.com/uploads/1/3/0/8/130874065/fokon_sajevepebi_xijonibevetid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365636/normal_5f88d7c460fce.pdfIn PDF document text
    • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/3909325.pdfIn PDF document text
    • https://zirasave.weebly.com/uploads/1/3/4/0/134096010/4844624.pdfIn PDF document text
    • https://jedarixires.weebly.com/uploads/1/3/0/9/130969076/4976201.pdfIn PDF document text
    • https://mogazikazalag.weebly.com/uploads/1/3/4/4/134440800/tobulonaze.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389604/normal_5f926f27d0896.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007ad8.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007ad8.bin)
    • https://uploads.strikinglycdn.com/files/802ba7ed-cb07-4b7b-bd99-8ef4e2c03619/vagaganazuwinavomugilibed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b64abd5a-0028-4da3-be76-f1205f9fc96f/95374980308.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb4f5226-7283-44a6-b82f-9fa63c1b7f0d/legend_of_zelda_breath_of_the_wild_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/1805/4555/files/botanists_field_guide_wow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1729ff98-d234-43db-a424-a2f0907bfad4/pojalusotenelali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/7481/8726/files/puzaxodumosazapamonubu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/decf3ab9-0dbd-490b-89e9-7333329f1cc6/thirsty_lion_pub_nutrition_informati.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/marketing_activities_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/3544/9238/files/rooms_to_go.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/9654/5712/files/email_extractor_from_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b957d646-b005-4118-b851-78a45004ebc6/95140387643.pdfIn PDF document text
    • https://s3.amazonaws.com/megelugik/atharva_veda_in_gujarati_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/amortization_in_accounting.pdfIn PDF document text
    • https://s3.amazonaws.com/kijelopazekune/the_barefoot_investor_for_families_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13a183c6-0954-4365-9687-627255d443b3/88406944934.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/download_three_6_mafia_most_known_unknown_zip.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_off00007ad8.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD8 5204 bytes
SHA-256: bcac4329a485fbe655ad40022bd5fd5d92a3f07a964bec30ea0f1b569af4922a
font_01_sfnt_off00008ca5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CA5 11640 bytes
SHA-256: d742b5baf74aa6b83737bfe3e1ecbfab24d58978a1478ba497fb5bbb28fc74bf