Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0264dc6314dc660…

MALICIOUS

PDF

75.2 KB Created: 2021-02-23 12:25:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 1f5e5f91b35787e6a6268357d27a2b41 SHA-1: 646a343d7191a59e23b27bbd0abca9109a58dae6 SHA-256: f0264dc6314dc660fea8160d549e4f458625296615041bf4de42c5cb86435363
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with one pointing to 'baarspo.ru', suggesting a phishing or redirection attempt. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, further supporting the malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's high confidence score point towards a malicious document designed to lead users to potentially harmful content.

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://baarspo.ru/wix?keyword=2003+honda+civic+lx+service+manual PDF link annotation
    • https://jumufewaxijakuk.weebly.com/uploads/1/3/1/3/131380308/manazuwafubu_kaguxesevume.pdfIn PDF document text
    • http://vawigeg.22web.org/61001296186.pdfIn PDF document text
    • https://tidoxanarapora.weebly.com/uploads/1/3/2/7/132710787/buzuvisofipodo.pdfIn PDF document text
    • https://lojizeli.weebly.com/uploads/1/3/3/9/133997115/1a64c486a73.pdfIn PDF document text
    • https://nitavadokeja.weebly.com/uploads/1/3/1/1/131163909/wulaweva-podupo-zepaxisotazile.pdfIn PDF document text
    • https://finirawex.weebly.com/uploads/1/3/2/7/132741073/9415319.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/kosipefojaw/vba_make_all_sheets_in_workbook_visible.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/2_player_games_for_android_bluetooth.pdfIn PDF document text
    • http://zufosigikirir.epizy.com/12552641344.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/nubinumusegokuxur.pdfIn PDF document text
    • http://mebijido.rf.gd/jufobuzarofikozamokili.pdfIn PDF document text
    • http://gewapapis.epizy.com/independent_clause_and_dependent_clause_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/3rd_conditional_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/beintehaa_song_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/assured_tenancy_agreement_template_scotland.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/june_2019_geometry_regents_multiple_choice_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwuzerijofa/ms_office_2016_full_version.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_off0000e974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE974 5652 bytes
SHA-256: c8e7c73e790bed1067e2420267c8cfaf039ac1cbff226fdb7eef94ef4dd99372
font_01_sfnt_off0000fc83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC83 10272 bytes
SHA-256: 513581c8333657510cf79d8773da88660ab1bce5364dbde02453a3017dfcd158

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