Malicious PDF — malware analysis report

Static analysis result for SHA-256 29e35b70270a5c8f…

MALICIOUS

PDF

48.3 KB Created: 2020-10-17 07:29:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5b4ff2440d9b05a6ff15809387ac0f40 SHA-1: 5bd92533917e603ffc60c6b3709c8aaaad4351b2 SHA-256: 29e35b70270a5c8f6d4fba1bed8a6ee27adfe7941b9f1bcb3be590d19dd7245e
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/123?keyword=date+stamp+whatsapp+android In PDF document text
    • https://taxajadotediru.weebly.com/uploads/1/3/0/8/130873824/124b884337150.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/nesubine.pdfIn PDF document text
    • https://misutinulil.weebly.com/uploads/1/3/1/4/131407711/8604940.pdfIn PDF document text
    • https://givifajilodox.weebly.com/uploads/1/3/0/8/130874655/1e181f83c324.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378383/normal_5f8a0278ad283.pdfIn PDF document text
    • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/e9da25cb761.pdfIn PDF document text
    • https://takijotirodone.weebly.com/uploads/1/3/1/6/131637658/babokura.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/389990.pdfIn PDF document text
    • https://nipufijupetobug.weebly.com/uploads/1/3/1/4/131482996/8a6898.pdfIn PDF document text
    • https://mufalugibesenu.weebly.com/uploads/1/3/1/4/131453255/sokeronorojikewagag.pdfIn PDF document text
    • https://vefoxetewezelir.weebly.com/uploads/1/3/1/4/131483279/b412a6.pdfIn PDF document text
    • https://gejatovuri.weebly.com/uploads/1/3/1/4/131406669/7836844.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/4b38d01a-44ad-4c74-80c9-780fa1da5786/67769259217.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9f4b405-36c5-457f-bb15-26836822bc14/dikof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a0e2399-0418-4526-bcb9-16e30cd9fc71/97982995518.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22ed4ae7-b9c4-4afc-9241-b834bba16435/kejitolotesudoleravetusi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb3b000f-c71d-490a-b6a2-f6842f27fb03/tabopevagigub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2e2754e-a614-4358-b192-02cefcfb080d/pelow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad0a3172-9fee-42b6-a07b-1b66538c3db1/nikerudeteruxoseve.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6853 5260 bytes
SHA-256: 0b710d987527956582e369b2568e8694e8143c309c25b71913a66cc550ee9a5b
font_01_sfnt_off00007a21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A21 10504 bytes
SHA-256: e66ef76b58230bf77527f7f5322cc9797a00d6447d590808a3eab22f778d29fa
font_02_sfnt_off00009e2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E2B 16288 bytes
SHA-256: ec654b92bded9e6e557b311565aa7e6854e46608133b7858caaa001c6b10c411

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