Malicious PDF — malware analysis report

Static analysis result for SHA-256 38a64bbfeb620799…

MALICIOUS

PDF

88.2 KB Created: 2021-02-18 15:08:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: ebeb5f58b230b6f3b9bceacb9ec0d8cf SHA-1: 5c10d385f13fec096eacd4c8433b070281d25df9 SHA-256: 38a64bbfeb62079909b524571118cd5f5b9d137aa42baf65a58153cfb12bf9c7
126 Risk Score

Malware Insights

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

The PDF contains numerous external URIs and is flagged by ML classifiers and ClamAV as malicious, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, appears to be a lure related to 'Whirlpool quiet partner i dishwasher parts diagram'. The presence of multiple disposable and potentially malicious domains suggests an effort to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://bologen.ru/123?utm_term=whirlpool+quiet+partner+i+dishwasher+parts+diagram PDF link annotation
    • http://muzoc.xyz/how_to_check_covid_cases_near_me_in_aarogya_setu3zenr.pdfIn PDF document text
    • http://tovelksa.website/choo_choo_train_sound_freea7vfk.pdfIn PDF document text
    • https://cdn.sqhk.co/goxobuve/ShdjjNa/16367940453.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394071/normal_5fe953d506f08.pdfIn PDF document text
    • https://cdn.sqhk.co/gapekozuwa/Yiem4ii/oklahoma_state_football_schedule_2020_tv.pdfIn PDF document text
    • http://takojebuti.iblogger.org/how_to_use_filter_in_google_sheets.pdfIn PDF document text
    • https://cdn.sqhk.co/nowavutu/zgcHKha/rovojosixifosoxi.pdfIn PDF document text
    • http://lavkavkusa.store/ace_the_ielts_third_editionbrvf0.pdfIn PDF document text
    • http://paringljkf.com/57000274576lbyzb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lisuxuzilim.epizy.com/25297594699.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/bighorn_river_wy_fishing_report.pdfIn PDF document text
    • http://xaligapuk.epizy.com/duet_apk_mod.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/free_magazine_layout_design_template.pdfIn PDF document text
    • http://dabudevegifu.rf.gd/tuped.pdfIn PDF document text
    • http://vufagozujidivu.epizy.com/consumer_reports_refrigerators_samsung.pdfIn PDF document text
    • http://pujusojup.epizy.com/41430577118.pdfIn PDF document text
    • http://tinejamuwaki.epizy.com/crippled_black_phoenix_discography.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/plant_cell_reports_manuscript_submission.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_off0001192b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1192B 5604 bytes
SHA-256: ef1446aead0f09941bfa63fe03facb4dfee737c2414fed7dafebdad75f69d702
font_01_sfnt_off00012c19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C19 11636 bytes
SHA-256: 5ad79f8bf46011088f5a2ce47bbeac16860568321a73c588805f374c1ceec2fc

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