Malicious PDF — malware analysis report

Static analysis result for SHA-256 05027d446dce757a…

MALICIOUS

PDF

72.3 KB Created: 2021-02-28 14:35:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 244b3db7b2bb74002946052a97204eb4 SHA-1: 4039ec0e2effd473f54a4c330a4a3a8014d7ca20 SHA-256: 05027d446dce757aec18be4ec9ffcda43034657534f4b9300636107816319b0f
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://yafferge.ru/wix?keyword=download+mega+apk+ios In PDF document text
    • http://naturebiolog.fun/what_is_the_meaning_and_example_of_literary_nonfictionnzcq4.pdfIn PDF document text
    • http://xufelaketodo.getenjoyment.net/35316440024.pdfIn PDF document text
    • https://demomejisalazi.weebly.com/uploads/1/3/4/8/134869482/9993467.pdfIn PDF document text
    • https://rijesire.weebly.com/uploads/1/3/0/8/130814070/a914ff1c.pdfIn PDF document text
    • http://pshcomonhere.xyz/86873358436aat29.pdfIn PDF document text
    • http://help-bluebadgecenter.com/minecraft_mods_java_edition_1._12._2e9t14.pdfIn PDF document text
    • http://numulul.mygamesonline.org/english_conversation_dialogues_greetings.pdfIn PDF document text
    • http://heretythere.site/how_to_be_a_successful_public_relations_officermcv8q.pdfIn PDF document text
    • http://jiwapadenejeza.getenjoyment.net/93595184290.pdfIn PDF document text
    • http://ita-women.space/fuxegiti3ks3v.pdfIn PDF document text
    • https://rakulemiz.weebly.com/uploads/1/3/2/6/132682689/zowij_fotobamutas.pdfIn PDF document text
    • https://moremutinujiti.weebly.com/uploads/1/3/4/8/134865562/fidarebozolo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vuterijoze/angiospermas_unam.pdfIn PDF document text
    • http://kefujuvaw.epizy.com/kovegu.pdfIn PDF document text
    • http://janofegiwene.epizy.com/bmw_i3_spec_sheet.pdfIn PDF document text
    • http://pikubub.onlinewebshop.net/zedopopifex.pdfIn PDF document text
    • http://xenuduximowub.epizy.com/viruxiwaputefixisi.pdfIn PDF document text
    • http://tifofev.rf.gd/p90x_day_1_workout_sheet.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_off0000df86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF86 5336 bytes
SHA-256: a625b6236ce860a44faba8cb84c6334c82104dddf8206ea2040fac457f5b0d4e
font_01_sfnt_off0000f1bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1BF 10184 bytes
SHA-256: a542f1616f74bf7cf45713b1f61baa8c7609ed2abca8e5105ad617d8b29a7efa