Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9bd2bc99d3893ac…

MALICIOUS

PDF

43.4 KB Created: 2020-10-27 17:50:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: fe5164c1acb2e68e808137c450f88fbb SHA-1: d5586f5c0d72e21e2f2e40817077ae35a328a51d SHA-256: d9bd2bc99d3893ac94eb0bc4d8fab39c36970816b9cc8141f893725bfe671ab1
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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/123?keyword=iron+bands+of+binding In PDF document text
    • https://towetebofipu.weebly.com/uploads/1/3/1/4/131437669/dabufu.pdfIn PDF document text
    • https://poxozebirineba.weebly.com/uploads/1/3/4/4/134447173/kupomunorimalu.pdfIn PDF document text
    • https://dosaremuxabibi.weebly.com/uploads/1/3/0/7/130739916/6955531.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/4106527.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367290/normal_5f8743f0d01b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379500/normal_5f8af277ba4a3.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://cdn.shopify.com/s/files/1/0498/9331/0631/files/vicks_vaporizer_model_v150_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5943/6968/files/power_lyrics_kanye_west_clean.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7286/3907/files/11784293562.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ea4d914-af21-403c-8c03-1d2d4fbb1b73/mordenkainen_s_tome_of_foes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8335d3fb-320b-4c42-9775-7bb7796e0ce4/51155112466.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fed381cd-53ee-4b17-9df2-a4d3b2812043/99609587603.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71df16f7-b230-4664-af15-96390567ecdd/rotabufelirupodemul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a23ab32-ea89-4b33-8201-31878ab5a5e0/vefuxos.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/bigupeluxex.pdfIn PDF document text
    • https://s3.amazonaws.com/wavunot/arduino_guide_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/real_depth_and_apparent_depth_derivation.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_off00005ec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC1 4708 bytes
SHA-256: 9d366e00e70e67f50b79a4d4f6c9ed74e05ec72a21d53cba25945f60ce63b924
font_01_sfnt_off00006eb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB0 10472 bytes
SHA-256: dfec0f5d02cd33d41e60dca60d52bbee7b1a30b157294b5f9579aa1842850cad
font_02_sfnt_off0000927c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x927C 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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