Malicious PDF — malware analysis report

Static analysis result for SHA-256 1157a89be382cc37…

MALICIOUS

PDF

43.3 KB Created: 2020-10-08 06:52:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 0258a752237264240a23c0fae87be1af SHA-1: 51952a88abacb39b3e26f3373433086ca0993af1 SHA-256: 1157a89be382cc377b0d95da8c1066aca1d3b0cc9a45be47b725273cf91f58cc
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=las+40+leyes+secretas+de+los+directivos+pdf In PDF document text
    • http://files.friendsofboltonlakes.org/uploads/1/3/2/8/132814791/2460589.pdfIn PDF document text
    • http://mazun.trevorbalthrop.com/uploads/1/3/1/8/131856772/8616858.pdfIn PDF document text
    • http://files.bowmanvillethai.com/uploads/1/3/2/7/132740515/3205727.pdfIn PDF document text
    • http://suwezisum.southernoutdoorrestoration.com/uploads/1/3/0/7/130775851/5b7e6cb0.pdfIn PDF document text
    • http://files.ellisonjazzmuseum.org/uploads/1/3/0/8/130813967/diroxefomuz_fezepifonudari.pdfIn PDF document text
    • http://files.auroramarketing.net/uploads/1/3/0/8/130873802/vunuwiwegelurosotu.pdfIn PDF document text
    • http://files.allenrobinson.com/uploads/1/3/1/0/131070982/4687016.pdfIn PDF document text
    • http://files.deverkindergarten.com/uploads/1/3/0/9/130969548/f999a.pdfIn PDF document text
    • http://dolubu.transcendingwalls.com/uploads/1/3/1/4/131407089/lasofepag-bejag-fijat.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/acf56a23-7f4c-4ed8-b5b5-3150531f26d9/bakokajapadireborude.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50342610-3326-4206-9702-938cde9001a5/bufejebepibixusoxigilim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28714c7d-86cf-4e69-9947-e55431074942/10496207893.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/127cf7e4-8c8e-4d41-b166-34b21b9ff275/farinekofejulifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/4538/4103/files/pevumunajosuzidoseviza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8757/0105/files/gedobarobabudepokare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6327/8758/files/thea_2_village_guide.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E4 5484 bytes
SHA-256: b6bc0b100207ef18d6058d2ff3c28cb7e00b9902e82627b6d3215f77c062c222
font_01_sfnt_off000077b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77B1 11664 bytes
SHA-256: 1515cb75783bff45da9a30bfe96d92b3ea958a2dc02826c21f1b5410c749e5ac

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