Malicious PDF — malware analysis report

Static analysis result for SHA-256 29496f1df7ef83aa…

MALICIOUS

PDF

61.8 KB Created: 2020-10-17 16:43:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 7f1775312bf19401bca9e533db36b238 SHA-1: d745409c87c21551672974584d39dcd29b0e7584 SHA-256: 29496f1df7ef83aa6a70cd4c6eff61bbf33eb9f7a530f7d389f56919192b266c
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=jagermeister+machine+service+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4376382/normal_5f8a26e102a07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375890/normal_5f8a71ad53bbe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366335/normal_5f870e8148609.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366646/normal_5f889c139e6c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369506/normal_5f88264a84bf0.pdfIn PDF document text
    • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/4302572.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/pokobu-pidoror-pekirez.pdfIn PDF document text
    • https://kusebedanosude.weebly.com/uploads/1/3/1/1/131163667/6110827.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/f9007.pdfIn PDF document text
    • https://jimigafekalese.weebly.com/uploads/1/3/1/4/131407537/fumulefap.pdfIn PDF document text
    • https://polabufasol.weebly.com/uploads/1/3/2/8/132814050/fafaw-janurufisakoben-galupi.pdfIn PDF document text
    • https://gemenudotipetal.weebly.com/uploads/1/3/2/6/132695720/lopaxarusiw.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/b99b8d7f0cc01.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/a236ef1a-518c-4505-ae1e-f7b9135b15c8/luxiwosobipemudelono.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfaff8a9-c74d-4690-81b6-c0d5ab36f884/17442245336.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a893d14-2df7-40bb-bd5d-fad8bdaa3e72/rosopatopovuwukep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/541e4cc9-e6f8-4a08-b419-dd9816e4bb9a/magedunasuxuduwu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d82a1c28-5c3b-47b4-8646-6af9ded331e3/gamikifizasubara.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/755e50ec-ca5d-4b0b-961a-4369fd749134/tazulurorodedovivaza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d876e238-62a7-4765-8d6b-5f3dbfe13a62/kevibijudoponagipaso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cfc58c2-bf3f-4a8f-ad6a-055db858a47a/7412904790.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9d41c53-df8f-4720-9933-94418016fe99/9713420110.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a64b299-7ebf-4e15-953a-f70eb425f30f/wugurovexu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8abafd02-bf13-4ca3-826f-3e35e4b8926d/zovovarozuwovofa.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_off0000b121.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB121 5260 bytes
SHA-256: 64621a4b98555cfea450b5c4c34ed9e636f3493dad954ec338c21e5a567d5f33
font_01_sfnt_off0000c2e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2E2 10964 bytes
SHA-256: b6de019258282465ff36a12ea19c30341358e161032fdeb62293057592b78fd6