Malicious PDF — malware analysis report

Static analysis result for SHA-256 c624999353219663…

MALICIOUS

PDF

46.8 KB Created: 2020-11-07 08:56:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: be821e4e240ec891eb8acd812412c25e SHA-1: 5f902acc11b85f87875319d35699efec9605d51f SHA-256: c624999353219663eebfcd6c136bd77a4ed05cf3ce205fc8308a75836f01e73c
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=garrys+mod+free+online+games PDF link annotation
    • https://tagepixibupiz.weebly.com/uploads/1/3/4/5/134586800/1088862.pdfIn PDF document text
    • https://tabuxeniki.weebly.com/uploads/1/3/2/6/132682737/dadofikaso_fejoronixiwaj.pdfIn PDF document text
    • https://guzozexuvuro.weebly.com/uploads/1/3/4/3/134322735/0e35c0624c7be6.pdfIn PDF document text
    • https://tejubodefi.weebly.com/uploads/1/3/4/3/134351051/redoxufalimizudi.pdfIn PDF document text
    • https://sonuboguf.weebly.com/uploads/1/3/4/3/134310015/97fd81308f6d93b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380223/normal_5fa309ccb0570.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387566/normal_5f9f0987637df.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://jamojowu.files.wordpress.com/2020/11/34626985596.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/33151175105.pdfIn PDF document text
    • https://juwukak.files.wordpress.com/2020/11/99027095322.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8070388-5df1-481c-8c0a-a9f86e92e359/16461479709.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B36 5068 bytes
SHA-256: a25b4fe192570d4ff2879acf4928231f44aee6b45fd077ea63629c83d059817d
font_01_sfnt_off00007c60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C60 10532 bytes
SHA-256: 43ef11f5236f3be8fbfb006c0e6d47f918676b7e7d3f22d217d3b6fd578e999d
font_02_sfnt_off0000a024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA024 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c