Malicious PDF — malware analysis report

Static analysis result for SHA-256 e53b2bc5cc94f235…

MALICIOUS

PDF

80.1 KB Created: 2021-05-11 10:05:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 1e6a6f795d29ba54cdaf93f95c25ebc3 SHA-1: 269211a617123d51741fce16d97f097d94d881f1 SHA-256: e53b2bc5cc94f23521c4ff6ed5bfad219868e76cd2c45b7d31266458eb80ef3d
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. An external URI pointing to 'resalured.ru' was extracted, suggesting a phishing or malware distribution attempt. While no scripts were directly extracted, the PDF structure and embedded URLs indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=ventless+washer+dryer+combo+lowes PDF link annotation
    • https://cdn.sqhk.co/desogepupema/mZEVGhg/ball_jumping_toy.pdfIn PDF document text
    • http://rimiripa.mypressonline.com/likukosezewadadizuda.pdfIn PDF document text
    • https://cdn.sqhk.co/vixukose/hhhaijZ/ok_live_video_live_stream_app.pdfIn PDF document text
    • https://cdn.sqhk.co/pobijejok/Khe6ihT/32731777545.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/5Zhieih/74241149346.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/juvetaso/how_to_watch_chuunibyou_demo_koi_ga_shitai.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/movawidejaruwipado.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7399efc9-42b0-4869-a0e0-630ef6e619df/is_blendtec_the_best_blender.pdfIn PDF document text
    • https://s3.amazonaws.com/mefovu/37004287167.pdfIn PDF document text
    • http://pivimufe.atwebpages.com/biochemistry_by_satyanarayana_4th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64acb6d6-80b3-432e-8b7b-25a4cc77225c/how_to_reset_filter_samsung_refrigerator.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/allen_carrs_easyway_to_stop_smoking_audio_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/vpn_client_cisco_android.pdfIn PDF document text
    • https://s3.amazonaws.com/najipavez/keurig_k45_elite_recall.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/fopagix.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_off0000fb9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB9F 5476 bytes
SHA-256: 87e525175319fe40fd9431c88aebdb882cd16603e8b186195186efc0eaa1bdd5
font_01_sfnt_off00010e28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E28 10796 bytes
SHA-256: a8649eead9d52fc1d63cfa18fdc1879dc1519a8f9183f5f17d2604ec74bea004

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