Malicious PDF — malware analysis report

Static analysis result for SHA-256 006dfdc905c97c3e…

MALICIOUS

PDF

43.6 KB Created: 2020-10-16 17:44:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3f21b4146777e5b7553513b6d65db6c3 SHA-1: e5fa5f4c8824b06170e5d50277c3ee08280c72c1 SHA-256: 006dfdc905c97c3ee17789b795dedc45f9ef30c9ee13cb30b793e01beb0be405
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=chemistry+lab+chemicals+list+pdf In PDF document text
    • https://dosedupuwosiwoz.weebly.com/uploads/1/3/0/7/130776272/fazuwivir_nigoluvevix_vojewanoluwexa.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/wirexanusir.pdfIn PDF document text
    • https://zuxuzesis.weebly.com/uploads/1/3/1/4/131438019/kelakakesonan.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/bamudepekepa_setumazowido.pdfIn PDF document text
    • https://wavuvavezexa.weebly.com/uploads/1/3/0/7/130775629/regori.pdfIn PDF document text
    • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/5771643.pdfIn PDF document text
    • https://nukevokisoget.weebly.com/uploads/1/3/2/7/132711970/peval-kamerip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369174/normal_5f880948d998e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365589/normal_5f8713e506e62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366965/normal_5f874a39f2ce6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368751/normal_5f87db73ed3cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366015/normal_5f870b34c81f1.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/24c9c987-2dd3-426c-b0a9-ed7a73863a58/53630977029.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1ec8573-a246-4342-9fcb-0b7ea56b225b/10605516155.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b96cf353-530d-4804-a860-853b8c528c70/vakelo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02b97b8a-5c19-48a4-af36-3d58b2c1b953/52264428932.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d1c3dc4-e53f-4118-9f24-1360218be381/menax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99a00011-c50e-419e-94de-032749d5aab4/apostila_de_teatro_evangelico.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c767ce66-9e2e-4652-97c9-8599cb62b3f8/boxiluwufojufawoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8120/3861/files/horry_electric_conway_south_carolina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0189/9938/files/da_form_348-e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4119/3127/files/howards_end.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5570/9351/files/lane_stallion_recliner_parts_diagram.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_off00006c91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C91 5540 bytes
SHA-256: 02b0740668bb973dc0f6abee8a84413f4946bf21cc504714b2047db59723b9c1
font_01_sfnt_off00007f38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F38 9948 bytes
SHA-256: a1c003d851ce95bfa799f651e2677e283c3761d62ff304766ab3790a88b0821e

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