Malicious PDF — malware analysis report

Static analysis result for SHA-256 571f93f3504477bf…

MALICIOUS

PDF

70.2 KB Created: 2021-01-30 03:42:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 453ad6086cd4ba40fd61abf34955ecac SHA-1: 7e495782a293555c9cfd0ba5989ba5bc104aa81d SHA-256: 571f93f3504477bf90b99c75e73da3639cdb206462a6d26679d64c00812068bb
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs and a deceptive document body suggesting a "Fox news live stream" lure. The presence of multiple external URIs, coupled with a high ML classifier score and ClamAV detection, strongly indicates malicious intent. The primary goal appears to be directing the user to a potentially malicious website for phishing or further payload delivery.

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://maypoin.ru/wb?keyword=fox%20news%20live%20stream PDF link annotation
    • https://piwomokoxik.weebly.com/uploads/1/3/5/3/135335333/mopitivefevixomizi.pdfIn PDF document text
    • https://cdn.sqhk.co/susojitigi/egdggjj/24016898902.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425211/normal_60128497896a0.pdfIn PDF document text
    • http://lefuvaguvupawax.iblogger.org/5388721001.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379982/normal_5ffd71b04e668.pdfIn PDF document text
    • https://cdn.sqhk.co/videbamez/Rrgfggx/first_strike_final_hour_free_download_ios.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368746/normal_5fcd52551622e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377935/normal_601336218810d.pdfIn PDF document text
    • https://kukitame.weebly.com/uploads/1/3/1/3/131379641/fopiluzafenu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402503/normal_5fdeeacc42cd6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408340/normal_5fcbf4bb4cbbc.pdfIn PDF document text
    • https://cdn.sqhk.co/zenetofuma/0gdWBRi/cod_cold_war_alpha_release_date_australia.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367645/normal_601487aca236e.pdfIn PDF document text
    • https://cdn.sqhk.co/wepurodapike/ieq8aKC/pandemic_definition_per_cdc.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/jevedijadiki/windows_10_free_iso_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/tojabixefova/14116368137.pdfIn PDF document text
    • http://wazuvit.rf.gd/axios_form_data_node.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/cascanueces_alejandro_dumas.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/bni_gurgaon_full_form.pdfIn PDF document text
    • http://derekage.epizy.com/vapabinafaxenogatuzalo.pdfIn PDF document text
    • http://zuxamivim.epizy.com/irs_ein_form_ss-_4.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/78268853191.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_off0000d69e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD69E 5008 bytes
SHA-256: 86b6b67de9c86bbccf01feb8f5a03fd4443f5766ff42fb32252a15f483966e59
font_01_sfnt_off0000e7ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7AB 10564 bytes
SHA-256: 2498adb41ccfe99ce6a2520e59e39579455df23216f66ace5f492895012d4cca

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