Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a72f2e9b92efad4…

MALICIOUS

PDF

70.6 KB Created: 2021-03-04 06:58:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: fea91b3fb75f84f5be682bc063887780 SHA-1: 4460ce1f8b15b6fe0bb3236fa404b831cbcbbc1f SHA-256: 9a72f2e9b92efad48f477d92a1c84ba8c49fb7064a7c0395a7c4acaa6d2c597e
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to disposable hosting, and the document body, though truncated, suggests a lure related to trading options. The presence of multiple external URIs and link farm heuristics strongly suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution.

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 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://resalured.ru/123?utm_term=how+to+trade+weekly+options+pdf PDF link annotation
    • http://leopolds.space/kepoxewyb6t.pdfIn PDF document text
    • http://vivekawiga.sportsontheweb.net/red_rising_book_1_characters.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478133/normal_602b91100de44.pdfIn PDF document text
    • http://front-glass.space/8032518791080c5t.pdfIn PDF document text
    • http://nibajafij.medianewsonline.com/fraud_investigator_salary_uk.pdfIn PDF document text
    • http://pidagenavuziw.mywebcommunity.org/pokerogixes.pdfIn PDF document text
    • http://dukafufuxona.iblogger.org/63628331964.pdfIn PDF document text
    • http://gumidaz.medianewsonline.com/71220919107.pdfIn PDF document text
    • http://getsol.xyz/microelectronic_circuit_design_5th_edition_jaegeri0hsx.pdfIn PDF document text
    • http://fidofawi.medianewsonline.com/hp_laserjet_pro_400_mfp_m425dn_driver_xp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://livufuxe.epizy.com/8642025457.pdfIn PDF document text
    • http://fapetaboxepug.rf.gd/zexemefokugijoxolexuse.pdfIn PDF document text
    • http://vuxotuketut.rf.gd/superantispyware_for_android_phones.pdfIn PDF document text
    • http://muvabeso.epizy.com/23664077961.pdfIn PDF document text
    • http://rigemileluzed.epizy.com/12008688686.pdfIn PDF document text
    • http://demuremapinob.epizy.com/5155431438.pdfIn PDF document text
    • http://vijelekagopazis.rf.gd/lawelenojuxad.pdfIn PDF document text
    • http://savejanaxejov.rf.gd/muzosipusepozule.pdfIn PDF document text
    • http://bavodokebak.rf.gd/safety_1st_ear_thermometer_49659.pdfIn PDF document text
    • http://tulinaf.epizy.com/16976011934.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_off0000d5ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5AE 5256 bytes
SHA-256: fbbbb7025840e08aeab811ed5263aef4a538f7204330c583c859f7168c662c5d
font_01_sfnt_off0000e7b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B3 11012 bytes
SHA-256: 6c6506862f4cc9e4a045995dec6fc10f2138990ee09d96b8963f333a215e4c5d

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