Malicious PDF — malware analysis report

Static analysis result for SHA-256 04c2a9c0799ea995…

MALICIOUS

PDF

84.0 KB Created: 2021-02-13 01:28:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: cb919a3ab28e697a8cb31ed00dd21bc9 SHA-1: d2dc1940e2647120447248d115e8aded6e0bb31f SHA-256: 04c2a9c0799ea995a4453d771d9b9852f1f647c892aafc10276c4b01d442885a
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains numerous external links, many of which are hosted on suspicious domains or are part of a link farm, indicating a phishing or malicious redirection attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or distributing further malware. No scripts were extracted, but the presence of external links points to a potential download or redirection mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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.
  • 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/123?utm_term=harry+potter+sorcerer%2527s+stone+putlockers PDF link annotation
    • https://dodilepu.weebly.com/uploads/1/3/4/4/134444379/womof-narekowivile-zonibogixot.pdfIn PDF document text
    • http://getallcreditscores.info/machiavelli_prens_kitap_zeti87y6f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408475/normal_5fe2da7e82cf7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462046/normal_5fd7ab9fabab6.pdfIn PDF document text
    • https://cdn.sqhk.co/bidelefo/ijf7bhQ/business_continuity_plan_apple.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446789/normal_5febbf8fb786e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461525/normal_602200e2b0858.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473432/normal_5fcc53c928333.pdfIn PDF document text
    • http://chambreop.xyz/fishing_guide_salary_ukxqjg2.pdfIn PDF document text
    • http://opensoda.pro/excel_bedingte_formatierung_zeilen_kopierencoyol.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448116/normal_600413cf2d591.pdfIn PDF document text
    • https://rejaduwewuwuga.weebly.com/uploads/1/3/1/8/131856140/wiletulijejikume.pdfIn PDF document text
    • https://cdn.sqhk.co/wumidimux/e3vihqy/dewewezeladilevalubewojif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388065/normal_600a9a77b8121.pdfIn PDF document text
    • https://cdn.sqhk.co/vixukose/1MVjdia/rome_total_war_2_legion_units_lose_experience.pdfIn PDF document text
    • https://cdn.sqhk.co/pajelidul/PEdAjdV/11786167960.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483870/normal_601d52a66fd92.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/mojivikapeti/64890837819.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/mojabapogejedelarilu.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/20365622682.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/69319990664.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010ba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BA3 5088 bytes
SHA-256: c7e04422a80118c5466f868305d61e6bbca9bfbe3931db70e3ecb346625520e7
font_01_sfnt_off00011d10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D10 11092 bytes
SHA-256: 7393e40580a6ce8cec462c2da21b59ce0d5fe1ea892e6525e28267c9acacc0c0

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