Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b5e8ffd794c8311…

MALICIOUS

PDF

44.6 KB Created: 2020-10-29 00:31:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 78541623c1c1bca74e99d320eebfc9d9 SHA-1: 73feb3b719522fa2812fc5f9c17dcddf781a05eb SHA-256: 9b5e8ffd794c8311bbf4e2ff6f3316ab8796289eeff2fbcd9025e369a4574ff0
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/pify?keyword=adjusting+lantus+for+hypoglycemia In PDF document text
    • https://cdn-cms.f-static.net/uploads/4410190/normal_5f99eba8c27c5.pdfIn PDF document text
    • https://wikoriduban.weebly.com/uploads/1/3/4/3/134341401/2ae785ca146.pdfIn PDF document text
    • https://wumunelopilum.weebly.com/uploads/1/3/4/3/134395902/9838b324c3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374178/normal_5f8c1b77a22a4.pdfIn PDF document text
    • https://kakakirikixego.weebly.com/uploads/1/3/4/3/134318951/xiwilefu_pudaragifaxi_kuwusiweko_kojajoxo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393752/normal_5f97158793004.pdfIn PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/kagejosuwu-bufegolofajog-pujefadu.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/7515503.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376125/normal_5f954cdd5e909.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393624/normal_5f99ef3eeabf0.pdfIn PDF document text
    • https://vunatoja.weebly.com/uploads/1/3/0/7/130738644/teruk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zuxadol/josewogipe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22ca1871-3e2d-46df-8886-0f4890a5a314/17424569947.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bf475e3-395a-4bdf-8a83-b27c960f2cb4/62003291024.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec12dfa3-273e-4978-9166-87f04a8cef89/38164771286.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/872a9d45-8489-4eff-b437-91eece532d3c/diwawalomuxekuzevofo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff41d503-17c9-4d74-a032-1af898159340/wicca_for_beginners_thea_sabin_review.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/brche_multiplizieren_und_division_aufgaben_mit_lsungen.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/nigufudomewazibaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f1fa609-91b9-41fe-bbce-397256ba06f5/kabemavuralera.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8054c19-2d6e-43c6-b546-deb4e53f2d46/gexerad.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/xowotupegeniditalusezot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e731a66-b4ef-4834-8fef-edeaf1b84847/chemistry_exam_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/chemistry_practice_test.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_off00006f41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F41 5736 bytes
SHA-256: d3d17f98747e445c1e193f92bb8eb3c88a365a88d60ef4926d96dcf0d4e9b2ff
font_01_sfnt_off000082ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82AC 10184 bytes
SHA-256: 9e5abcd0ddeba3492b4e4cd3048353e8d71ba6cf1abd8b62b463165cae407922

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