Malicious PDF — malware analysis report

Static analysis result for SHA-256 e15af9a57f4b3cd0…

MALICIOUS

PDF

62.1 KB Created: 2020-11-06 14:41:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 7c3cc3a7f0c2a86309df530d30b21223 SHA-1: 2091afc9f52abfb5f25e161dcd1508ca80fc2544 SHA-256: e15af9a57f4b3cd0ca55daf08a53ea8e11cfe565c1d188850eec01938288e610
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://traffking.ru/aws?keyword=hercules+symbols+bow+and+arrow In PDF document text
    • https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/dozelojukazeni.pdfIn PDF document text
    • https://subilitukufune.weebly.com/uploads/1/3/4/6/134629352/levinu-tuzetukolal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366319/normal_5f87c72038c7a.pdfIn PDF document text
    • https://vodiwisilob.weebly.com/uploads/1/3/2/6/132681054/mafizodumamapefuri.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/3919480.pdfIn PDF document text
    • https://venifamu.weebly.com/uploads/1/3/4/5/134501621/mibamanifuniw_dasigizi_feborinebofoza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387241/normal_5f97ca240faac.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://s3.amazonaws.com/kitakilesa/1999515245.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ecf63c0-c463-4ffd-9531-a319d997e73f/white_diamond_pearl_touch_up_paint.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ff5de45-8d3f-4171-bd09-06174688698b/if_everyone_cared_chords.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eba340d9-f9b2-427c-ac0a-ba0897057acb/xazisawulebopawivijulav.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/tnpsc_assistant_system_engineer_study_material.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf03b197-f2fd-4402-9bfa-12718fd3e27b/78545248529.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebadf02f-e71f-48b9-a1e5-61a3b689f81f/27725589534.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c46c1fd4-bbf8-40ea-9c0b-e09e62db3677/tuxojup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7bf0425-9555-47b3-a35a-6053b9868291/4014418901.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/47730196140.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_off00009fb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FB2 5132 bytes
SHA-256: 2be5d006d08c5b49b8ad95cf40103a36e6444ca550c3a7ad9da9bc5b47340b73
font_01_sfnt_off0000b109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB109 13756 bytes
SHA-256: 5c92adf9a057adf721929a8428d7ce4862d77fed09906a7f0adf51271c687346
font_02_sfnt_off0000dd16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD16 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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