Malicious PDF — malware analysis report

Static analysis result for SHA-256 60e977dd40e6a1c7…

MALICIOUS

PDF

72.5 KB Created: 2021-02-18 22:22:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 5d235c41da02a868b0aede18494f0b9d SHA-1: d8f557325b41eadca68485b60695df9bbd2e00c7 SHA-256: 60e977dd40e6a1c78796f901a2da22e442ab4068624390743e3efd98c4b4dc4b
186 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by multiple heuristics and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or redirection scheme. The presence of embedded URLs and the overall structure point towards a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://druttle.ru/strik?utm_term=cuanto+1+metros+en+pies PDF link annotation
    • http://1freedom.space/knowledge_base_html_template_nulledfzf7r.pdfIn PDF document text
    • http://unreguezff.rest/briggs_and_stratton_carburetor_parts_canadian_tire94pwd.pdfIn PDF document text
    • https://nunodovov.weebly.com/uploads/1/3/1/3/131380210/gakazupukiwolopapa.pdfIn PDF document text
    • https://nokajadum.weebly.com/uploads/1/3/4/8/134887388/gadomeximikaso_jixamu_tupabixixozup.pdfIn PDF document text
    • http://gdztut.com/dumulipuromil1l1tn.pdfIn PDF document text
    • http://begemotiks.space/guxunevetigufigd7d6q.pdfIn PDF document text
    • http://mavitrade.com/34319009192q7sde.pdfIn PDF document text
    • https://rudusixan.weebly.com/uploads/1/3/0/7/130775573/vexuna.pdfIn PDF document text
    • http://copyright-help-report.com/usa_network_app_free_download4pvrl.pdfIn PDF document text
    • https://zixojubagever.weebly.com/uploads/1/3/4/6/134613499/viforanapuza.pdfIn PDF document text
    • https://gepobuxew.weebly.com/uploads/1/3/1/0/131070920/kadatijaguxamiper.pdfIn PDF document text
    • http://garantiya62.ru/kodak_alaris_s2050_manual9jmw7.pdfIn PDF document text
    • http://true-board1.club/nokia_3.1_android_one_hard_resetxqe5r.pdfIn PDF document text
    • https://nedalejurozawo.weebly.com/uploads/1/3/0/7/130776692/5083956.pdfIn PDF document text
    • https://nuxutesinof.weebly.com/uploads/1/3/1/4/131437012/02da5694b74c.pdfIn PDF document text
    • http://hookup154.online/crossy_road_secret_characters_arctic_update7t8vt.pdfIn PDF document text
    • https://nudadisaxoge.weebly.com/uploads/1/3/4/0/134018155/5902515.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000de03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE03 4888 bytes
SHA-256: 96257691f6e2556c19ff6c4be66d8bdc62f3a471209bf5933ea9de2e8a35a042
font_01_sfnt_off0000ee8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE8E 11752 bytes
SHA-256: 7d77b486ae538ec09c8756b285135d736766588c4d86868c8cd0a6114c0c0e5b

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