Malicious PDF — malware analysis report

Static analysis result for SHA-256 6023c0c22412c1ca…

MALICIOUS

PDF

91.2 KB Created: 2021-03-23 00:36:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: ca22852dbec018ead53868762bcc7159 SHA-1: da6ef4ba2daf1568194f5ab1c9424ff90f4ad089 SHA-256: 6023c0c22412c1ca5d0be8ac97e316ddb70ed3268f5c6a6301ee9e321886f6e9
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document impersonates a cloud file-sharing service to lure the user into clicking a link, which is a common tactic for phishing and credential harvesting. The document also contains lures related to payment redirection, suggesting a business email compromise (BEC) or financial fraud attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a malicious intent to redirect the user to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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://botokaw.ru/strik?utm_term=why+is+my+verizon+cloud+not+working PDF link annotation
    • https://dibevoxatatot.weebly.com/uploads/1/3/1/1/131164568/8b550d0dd5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383571/normal_5ff2d5114e22c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4528260/normal_5ff3807d4c2ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379605/normal_601b52f4d3633.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380700/normal_6011714b0f81e.pdfIn PDF document text
    • https://cdn.sqhk.co/zotipimesaza/ioTiejf/download_domino_offline_mod_apk.pdfIn PDF document text
    • https://fexasesari.weebly.com/uploads/1/3/1/0/131070539/7030214.pdfIn PDF document text
    • https://pugulewex.weebly.com/uploads/1/3/1/4/131406013/5879549.pdfIn PDF document text
    • http://tikewifijub.22web.org/fijagunasetedikakari.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450037/normal_600d3657a417d.pdfIn PDF document text
    • http://sudedelanefozuk.66ghz.com/what_is_the_best_bug_zapper_to_buy.pdfIn PDF document text
    • https://cdn.sqhk.co/lazaxosu/B31ifQV/35080829112.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cb38ef3f-1f2c-4622-8962-dca261660167.filesusr.com/ugd/3ae201_d96a4c8bca10463cbca8131d4b042c60.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bddf3aa-dc49-49c8-bb1f-b619727288d8/zagolajevoxinoto.pdfIn PDF document text
    • http://feneluveje.epizy.com/nanunobogixazerepemafol.pdfIn PDF document text
    • https://ea7788ad-ef5a-48b5-911d-3ad522045378.filesusr.com/ugd/f3bfbb_c89eb0215c464a77804313fac2e8c55e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c6cf314-837d-4b30-b2e9-52a53d7cdb3f/graphic_designer_resume_sample_jobhero.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5021b59a-9b9c-4568-a848-464bfe849110/85490071023.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b04c8e80-0889-424c-8729-fbb2a9278acb/arkansas_driving_test_practice_book.pdfIn PDF document text
    • http://faxowake.epizy.com/sozovekafofe.pdfIn PDF document text
    • http://bupixifebinare.epizy.com/mapatojeludewupivu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010d5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D5C 5524 bytes
SHA-256: 959dfd6f8f55381ee9f2a91254899b2d1433515a8f39d883a20ac7d5ae6dceab
font_01_sfnt_off00012026.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12026 11336 bytes
SHA-256: 50eab5d7c5afacf49966b2222608c38ed30864b41977d895df254c2ef01350b3
font_02_sfnt_off00014714.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14714 16556 bytes
SHA-256: 928fb4d8dd45ba767bc1ec3d7d1e39d222f9b897fd9e7c6e763edb7ea7b2aaf1

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