Malicious PDF — malware analysis report

Static analysis result for SHA-256 46c9c5ab7bf22e6e…

MALICIOUS

PDF

35.2 KB Created: 2020-10-15 13:06:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 47119aac4c406b004a774797cf12ebe1 SHA-1: a5c6c659884164ff64ba2f96ded13467a3bee1b9 SHA-256: 46c9c5ab7bf22e6e3feea9a56334b08016314144198ac7d3d4b2bfd2f9e2c8a5
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://gettraff.ru/strik?keyword=live+sports+tv+pro+apk In PDF document text
    • https://dirigesibujov.weebly.com/uploads/1/3/0/9/130969991/pixusobejaluxewe.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/a8401ec7a9859.pdfIn PDF document text
    • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/dokafopenivoziduf.pdfIn PDF document text
    • https://nogafuku.weebly.com/uploads/1/3/2/8/132815296/sozusor-gofizulukan-pisobal.pdfIn PDF document text
    • https://site-1036828.mozfiles.com/files/1036828/51884751874.pdfIn PDF document text
    • https://site-1036900.mozfiles.com/files/1036900/wamit.pdfIn PDF document text
    • https://site-1038782.mozfiles.com/files/1038782/910512791.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367271/normal_5f87bab49c19d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365560/normal_5f86faf173f8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367941/normal_5f8806de6919f.pdfIn PDF document text
    • https://site-1037828.mozfiles.com/files/1037828/donepun.pdfIn PDF document text
    • https://site-1040795.mozfiles.com/files/1040795/wosix.pdfIn PDF document text
    • https://site-1040277.mozfiles.com/files/1040277/38209083697.pdfIn PDF document text
    • https://site-1037129.mozfiles.com/files/1037129/labajakezufadavibuseva.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3421/3538/files/badenufavefigudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4997/4946/files/adjective_adverb_clauses_worksheet_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0508/2776/files/fekusife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/2520/5918/files/futebexisuzonuxekotiwod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/9738/2805/files/niobides_krater_khan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/1722/8455/files/unit_circle_practice_worksheet_with_answers.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_off00004c67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C67 4848 bytes
SHA-256: 0d59869a849b504f5d39334975c98a7bea985577f97586d1e8713a33d7fcba30
font_01_sfnt_off00005cfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFB 10124 bytes
SHA-256: 875d09f8244a0960f46a0267efbb03b7affca2e6ad5e0752f602c069a38604ec