Malicious PDF — malware analysis report

Static analysis result for SHA-256 f48df7bc9b47dd62…

MALICIOUS

PDF

46.5 KB Created: 2020-10-08 03:28:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 35a504cfcc560cfa574e5b6359d36ba1 SHA-1: 5aa193b3159855d6050589e19c5dff440df90e32 SHA-256: f48df7bc9b47dd62cf3c895d7200448a2ad89cb65f14c83dd3111b7e08e38244
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.club/pify?keyword=646+area+code+phone+number In PDF document text
    • https://site-1039753.mozfiles.com/files/1039753/88392346542.pdfIn PDF document text
    • https://site-1039313.mozfiles.com/files/1039313/40016038319.pdfIn PDF document text
    • https://site-1042740.mozfiles.com/files/1042740/wibakep.pdfIn PDF document text
    • https://site-1037048.mozfiles.com/files/1037048/13323999446.pdfIn PDF document text
    • https://site-1040575.mozfiles.com/files/1040575/20635195589.pdfIn PDF document text
    • https://site-1038915.mozfiles.com/files/1038915/zidik.pdfIn PDF document text
    • https://site-1036830.mozfiles.com/files/1036830/golofatevonepobinaxamodox.pdfIn PDF document text
    • https://site-1037283.mozfiles.com/files/1037283/dubagokedagirokizuwikab.pdfIn PDF document text
    • https://site-1038901.mozfiles.com/files/1038901/42852634016.pdfIn PDF document text
    • http://malog.lesherinstrumentalmusic.com/uploads/1/3/1/4/131438304/wafaladorawebafoluzu.pdfIn PDF document text
    • http://files.saraswatiadornments.com/uploads/1/3/1/4/131406662/673313e.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://uploads.strikinglycdn.com/files/1ae4e81c-281f-4614-9349-3186c4e14c8a/zoketi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f66cbd0f-5cff-469c-8c65-9e0744109e73/wejetebajiwugozatu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e025a2bf-0ad8-4255-8a04-80f032d72ec0/rotezelikuwi.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_off0000693e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x693E 5144 bytes
SHA-256: 2e75d81e7bbad3db676fed378101a7e17ee7ecfe9f3fd3fc0e7651df87b07b2c
font_01_sfnt_off00007a64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A64 10872 bytes
SHA-256: 041b8c7e3c384b9bc871d16dd08064992679fca720025bb18e9c94f1085cf2df
font_02_sfnt_off00009f2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F2A 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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