Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cdd220c34390f7b…

MALICIOUS

PDF

74.4 KB Created: 2021-03-02 07:13:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 59f33b614b653c893d6b02e622e0c8d0 SHA-1: 04ea0520280cd45d72b4f4c01f9d85eb7117660a SHA-256: 7cdd220c34390f7b07ac969ba165d30aa4ea71f02cbb81b34ab0b63c950736f9
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by multiple heuristics and a machine learning classifier, specifically flagged for containing a large number of external links. The primary URL, https://jumiwimov.ru/wix?keyword=bruh+city+chile+google+maps, suggests a potential phishing or SEO poisoning attempt. While no scripts were directly extracted, the PDF structure and the presence of numerous external links indicate an attempt to redirect users to malicious content, likely for further exploitation or credential harvesting.

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
  • 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.
  • 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://jumiwimov.ru/wix?keyword=bruh+city+chile+google+maps PDF link annotation
    • https://naxofezuwu.weebly.com/uploads/1/3/5/3/135396878/vibadekazoju_malovagoledaz_gosema_livejijojin.pdfIn PDF document text
    • http://lixorajepidil.mygamesonline.org/soxomifejaregero.pdfIn PDF document text
    • http://gisoboxizaza.mygamesonline.org/14997756913.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dopovis.myartsonline.com/50662419323.pdfIn PDF document text
    • http://xilagerezob.epizy.com/1220401553.pdfIn PDF document text
    • http://wozimape.onlinewebshop.net/john_deere_9500_combine_settings.pdfIn PDF document text
    • http://zitadufafasid.onlinewebshop.net/abu_garcia_black_max_parts_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/fugoxomisak.pdfIn PDF document text
    • http://sovizaz.epizy.com/99074236290.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/excel_budget_template_free.pdfIn PDF document text
    • http://lepamiruketujuf.epizy.com/74524504481.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/ctet_question_paper_2011_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/nitizobuv/backtrackit_pro_apk.pdfIn PDF document text
    • http://kugexuluke.epizy.com/wordpress_responsive_ecommerce_themes_free.pdfIn PDF document text
    • http://kejufunekopal.epizy.com/conclusion_of_lab_report.pdfIn PDF document text
    • http://zinipuzotekum.rf.gd/bbmc_college_admission_form_2018.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_off0000e6a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A0 5500 bytes
SHA-256: 308c1a202ac16cf4409370772c0bcf46ecf53bad1d105c487b5257e77a1f018a
font_01_sfnt_off0000f935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF935 10312 bytes
SHA-256: 37d4f759232c94640d2326ae539345a812186603811abb226fb19c1d611e7942

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