Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e48f3cd8f734973…

MALICIOUS

PDF

70.0 KB Created: 2021-05-04 00:51:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: d64af17c7664610815d7d660599feb0e SHA-1: edf39f69ab85211d07c5872b7b6cf2ef77b1b189 SHA-256: 7e48f3cd8f734973157b2f73f6fad6ac2a52c9b80bafec336cbe19561a88649e
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics as a link farm, containing numerous external URLs pointing to potentially malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of external URIs and a link farm suggests the document's primary purpose is to redirect users to other sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://dugedepap.ru/strik?utm_term=garage+door+remote+not+working+chamberlain PDF link annotation
    • https://fufivivol.weebly.com/uploads/1/3/0/8/130873849/vanosugozexabezativ.pdfIn PDF document text
    • https://dumetokewip.weebly.com/uploads/1/3/4/3/134394823/7914380.pdfIn PDF document text
    • https://bemijeze.weebly.com/uploads/1/3/5/3/135302335/verifed.pdfIn PDF document text
    • https://famopedudir.weebly.com/uploads/1/3/5/9/135978287/nigunevotilusi_vonarar.pdfIn PDF document text
    • https://jufoximivovanad.weebly.com/uploads/1/3/4/0/134013024/gajozunemixo.pdfIn PDF document text
    • https://rukuzidin.weebly.com/uploads/1/3/4/5/134517246/b6ea599cc5a23.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426701/normal_6035f0a7594ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409118/normal_60534a14cb40b.pdfIn PDF document text
    • http://posebakuxosafod.getenjoyment.net/79037126541.pdfIn PDF document text
    • https://pimiwunuxijekez.weebly.com/uploads/1/3/2/7/132741089/357e55a.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/6826392.pdfIn PDF document text
    • http://mowefopovog.mywebcommunity.org/cuantos_pies_cuadrados_tiene_un_metro_lineal.pdfIn PDF document text
    • https://fofonamid.weebly.com/uploads/1/3/4/8/134869219/suxurov.pdfIn PDF document text
    • https://munemajof.weebly.com/uploads/1/3/2/3/132302982/89ed8253.pdfIn PDF document text
    • http://mukuwasoveta.sportsontheweb.net/99927227926.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wadoromutisagar.myartsonline.com/beyond_enemy_lines_game.pdfIn PDF document text
    • https://4eb3a9b5-ca6a-4b2a-896e-878abc754f3b.filesusr.com/ugd/f1ab86_80c8a46ac4484a9ea7126a7badb6168c.pdf?index=trueIn PDF document text
    • https://c84d532c-3b33-47d6-96aa-4134a1164eb1.filesusr.com/ugd/6d45f6_da97de5a64174e44ac4f53fabd376946.pdf?index=trueIn PDF document text
    • http://zisukuvi.atwebpages.com/gabanikoripixavunuduku.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_off0000d344.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD344 5500 bytes
SHA-256: 3cee360ee5e74c9f1191e7b1582982aacdc978249c35d4e01f66f40f7aefe35a
font_01_sfnt_off0000e5e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E7 10232 bytes
SHA-256: 7c0a9b70d8bdbff0333116389fa5fca264acab41e7c604bfd493174f33bf73d3

Open this report in the interactive analyzer, or submit your own file for analysis.