Malicious PDF — malware analysis report

Static analysis result for SHA-256 be6e7b36814d87b6…

MALICIOUS

PDF

77.3 KB Created: 2021-03-01 01:21:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: faccfcf0789b9b0bd0bbf529ce7fcd1e SHA-1: 22e68a8594677b92e4ae4c1068cb056d9badfdd3 SHA-256: be6e7b36814d87b6e60c5a03d627e439ed6cf5ebbc5729faee466bb7e1843033
104 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://vilenefex.ru/wix?keyword=the+secret+by+rhonda+byrne+epub+vk PDF link annotation
    • http://mpvideo.org/58287693884zggsj.pdfIn PDF document text
    • https://cdn.sqhk.co/sadetujadufi/Hgihcjj/destiny_child_game_costumes.pdfIn PDF document text
    • https://cdn.sqhk.co/jinavefajevo/jagcdAI/build_a_balloon_tower_game.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501514/normal_603b903adf937.pdfIn PDF document text
    • http://gazzsheff.xyz/litany_for_survivalx3oos.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/nutanigonu/lugafaj.pdfIn PDF document text
    • http://fabaxufonekefen.epizy.com/business_strategy_literature_review.pdfIn PDF document text
    • http://sovotovagito.epizy.com/zozibevobikoja.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/court_reporter_job_tasks.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/arizona_30_day_notice_to_vacate_template.pdfIn PDF document text
    • http://toxogeparami.epizy.com/nesofafupag.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/47969563022.pdfIn PDF document text
    • http://jibogifimot.epizy.com/zojujo.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/25960074914.pdfIn PDF document text
    • http://zaxatuparogojix.epizy.com/wevukigogabemipoz.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_off0000f372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF372 5444 bytes
SHA-256: 858a7b4d66da5042dcaf6fe937ed67a99fb6c20c505ec6a4f37d1ed80e1e9185
font_01_sfnt_off000105f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105F3 9968 bytes
SHA-256: 4ec4a5c4f038b28ac39161f78e63a7094c4ff2876092f8b8b969d53b0165ca93