Malicious PDF — malware analysis report

Static analysis result for SHA-256 736c5c9c1f50313f…

MALICIOUS

PDF

46.4 KB Created: 2020-10-16 17:43:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ea949935b2ac0da4163103274c6e6223 SHA-1: 31f9d97c378af773ab15e8ef93f4782bc13aa271 SHA-256: 736c5c9c1f50313fabb5a8beb1b850dc1858178a6736a770210c64ae3500c547
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://ggtraff.ru/123?keyword=intoxicacion+por+picadura+de+alacran+pdf In PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/fuzajone.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/tiladejonu.pdfIn PDF document text
    • https://kenilajapa.weebly.com/uploads/1/3/1/0/131069910/zekufutute_nuxelatigasinox_rixajonujeba.pdfIn PDF document text
    • https://nukevokisoget.weebly.com/uploads/1/3/2/7/132711970/wetoviwebotuzo.pdfIn PDF document text
    • https://dojulukasinu.weebly.com/uploads/1/3/0/7/130776790/bezexewa_vedujetexavuwas_jegudata.pdfIn PDF document text
    • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/8ad98d21.pdfIn PDF document text
    • https://fotejisatowonu.weebly.com/uploads/1/3/2/3/132302873/mizilekujamav_robin_sebesuzazakigu_gifamoron.pdfIn PDF document text
    • https://finiluxexolije.weebly.com/uploads/1/3/1/8/131856594/2045366.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369927/normal_5f8866ec7f7a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368950/normal_5f88ad4878301.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366382/normal_5f88d527a2508.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365540/normal_5f86f9161093c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368748/normal_5f87ef38dd9fb.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/d3ec8d40-c2ce-4554-af9d-9ccfd78b632c/98732938862.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6dd8f784-2ae2-4fa5-84b9-abc71d442203/57207964610.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0589bfb0-aeb9-4c37-bac4-932f5006f7ce/vevijemegi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29bd553f-b938-46ea-92dd-304b77cad6c2/xogaraguxil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7658/2552/files/fivukezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0747/5875/files/weslo_crosswalk_5.2t_treadmill_assembly_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3595/7147/files/milaxozupom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0475/9276/7644/files/mole_mapping_cpt_code.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_off00007511.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7511 4976 bytes
SHA-256: 1a87fd5804ae6320b8b180d0abd1649fcf8581a7a17dbc4c7f040ee578d80f53
font_01_sfnt_off0000860c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x860C 11116 bytes
SHA-256: 4c9da81f94e1f8e260cd01514112f9e491dc241f4120524e34e222fc4700eb6b

Open this report in the interactive analyzer, or submit your own file for analysis.