Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7c8bbef6f6e7cee…

MALICIOUS

PDF

40.0 KB Created: 2020-10-27 22:44:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 5cca1f417ee919e73e14a86bf6b1f2b0 SHA-1: c53c064c703a3c2f3e01f5115a8b0ee447169fb3 SHA-256: e7c8bbef6f6e7ceea54292d59546a88926836e61697c6e4eb73352e18e445b5f
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://ttraff.me/pify?keyword=nerf+gun+retaliator+accessories In PDF document text
    • https://jonukejunuxesa.weebly.com/uploads/1/3/1/4/131409236/guvoxazopix-jobugeg.pdfIn PDF document text
    • https://sisodiwitamusoz.weebly.com/uploads/1/3/2/6/132681746/69830.pdfIn PDF document text
    • https://femevidawivuk.weebly.com/uploads/1/3/1/0/131071063/nedosikunujoguno.pdfIn PDF document text
    • https://folanejo.weebly.com/uploads/1/3/0/7/130776558/5d8b18d9d.pdfIn PDF document text
    • https://luwobidope.weebly.com/uploads/1/3/0/8/130814225/mawodokukuroxot.pdfIn PDF document text
    • https://pabaxovazat.weebly.com/uploads/1/3/4/3/134323574/3964821.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/ditufesuzosas_vodidos_pupikisipojovib_rixat.pdfIn PDF document text
    • https://mitigovoponezix.weebly.com/uploads/1/3/4/3/134375948/jovalo.pdfIn PDF document text
    • https://zatazonikafude.weebly.com/uploads/1/3/4/3/134340422/1885998.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390374/normal_5f918a9bed7cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370525/normal_5f97590612cd4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369927/normal_5f88aade8be8d.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/3e548909-8a4e-469a-ae3f-d4cc4a2a7505/torunupelilibo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b0bdeb6-e236-4273-8685-ab6bdb8588de/63145916413.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1d08a46-14b4-408f-a234-f1519ed77066/79157431900.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4803acb2-ec6e-41b1-9a75-7699fd566007/9320527555.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8c86114-92fc-439a-b247-b26f0973c365/jekigoxitikinanap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/agenda_2020_editable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/2878/2497/files/recovery_from_sd_card_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8117/7496/files/full_screen_bottom_sheet_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1597/7630/files/mlp_mod_apk.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_off00005e22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E22 5016 bytes
SHA-256: 47a8f363dedf9d527c8c316b8d591a29bbbcd2e786958c0326ced4bd58e2820e
font_01_sfnt_off00006f48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F48 10460 bytes
SHA-256: d6eb23a1f68895cc11aa60499c610df88fb9579c936f00c3240270287d8ff938

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