Malicious PDF — malware analysis report

Static analysis result for SHA-256 60dac199f0a90cc8…

MALICIOUS

PDF

97.0 KB Created: 2021-02-08 01:30:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 170fb3ef814de02f59b9cf3a1db113f2 SHA-1: d860596dcf6d0a75f2b78af6707a49d9b26479ab SHA-256: 60dac199f0a90cc8cf1bafff25c862063005b63f666f8f82381fbcd26a5f6e30
126 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ML and ClamAV, as malicious. It contains numerous embedded URLs that point to disposable domains, suggesting a link farm designed to redirect users to potentially malicious content. The presence of external URIs and the ML classification strongly indicate a phishing or malware distribution attempt.

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://jacksth.ru/123?utm_term=ping+pong+tutorial+beginner PDF link annotation
    • http://unosital.space/paroxysmal_nocturnal_dyspnea_adalahfhkxi.pdfIn PDF document text
    • http://tiburozikibuvex.22web.org/gojakobiretuwi.pdfIn PDF document text
    • http://romeital.space/850134281537w0yq.pdfIn PDF document text
    • http://lulelege.iblogger.org/autotune_5_vst_plugin.pdfIn PDF document text
    • http://kawlites.online/gositamogaboti8xy1d.pdfIn PDF document text
    • http://igme.site/voxenafaluvujowibbpswn.pdfIn PDF document text
    • http://it50discount.pro/online_application_form_6_election_commission_delhi11pv0.pdfIn PDF document text
    • http://waniwidolo.66ghz.com/78648910206.pdfIn PDF document text
    • http://greatholl.com/construction_quality_management_plan_templatew0z2y.pdfIn PDF document text
    • http://funuvumolifedaj.iblogger.org/petg_plastic_sheet.pdfIn PDF document text
    • http://ginutojuluxuvo.iblogger.org/luluketopi.pdfIn PDF document text
    • http://lg-supportteam.com/cambridge_exams_extra_pet_with_answersw41id.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/gazitif/khasi_song_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/49133044096.pdfIn PDF document text
    • http://luzirilokupozar.rf.gd/1659373960.pdfIn PDF document text
    • http://vosimamasi.epizy.com/sumufepolakimudipi.pdfIn PDF document text
    • http://jasukapikubov.rf.gd/lagu_burung_kakak_tua_mp4.pdfIn PDF document text
    • http://koroputonazan.rf.gd/credit_bureau_reporting_transunion.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/77348570832.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013742.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13742 4952 bytes
SHA-256: 64d5f41cb1c8657318f6339b214883ecc9e5b7aaa19918ca0e02bb77923a5002
font_01_sfnt_off00014823.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14823 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off000150b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x150B1 10904 bytes
SHA-256: 112362b6563c3594f012e6944dfe1c5fd16bc2cfbf5155f74f5083427fa7e00b

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