Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c0573d49c42b993…

MALICIOUS

PDF

88.6 KB Created: 2021-09-13 17:24:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 70272c6666b49213ab68c141c25a19d6 SHA-1: 11858aa3f2db7834db8f741017b19f77abe866ff SHA-256: 5c0573d49c42b9931bed2fe691ee28963a84d1bd71a2191fafa66c89ff71088a
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF document containing embedded JavaScript, which is a common technique for delivering malicious content. Heuristics indicate a payment redirection lure, suggesting the document aims to trick users into believing there are new banking instructions. The presence of numerous external URIs, many of which appear to be part of a link farm, further supports a phishing or credential-harvesting objective.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://archism.ru/uplcv?utm_term=minecraft+alts+generator PDF link annotation
    • http://avanti-kuhni.ru/upload/files/92143028744.pdfIn PDF document text
    • http://cloudinfo01.smartevolve.com/images/ckeditor/files/42854671776.pdfIn PDF document text
    • https://www.hippocratio.gr/ckfinder/userfiles/files/dodog.pdfIn PDF document text
    • https://netiko.ge/img/Data/file/95995749506.pdfIn PDF document text
    • https://sakura-bashi.com/uploads/files/202109100349083884.pdfIn PDF document text
    • https://ecodiagnost.com/ckfinder/userfiles/files/nunizuluvikefigulekovuwe.pdfIn PDF document text
    • https://luxm.pl/userfiles/file/wuzenijojasakerasop.pdfIn PDF document text
    • http://babyindex.nl/images/uploads/wusutugotodenazanovozos.pdfIn PDF document text
    • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/fobd92mnl8h8ehhm32k24660r6/24674907625.pdfIn PDF document text
    • https://sinaia-vik.com/admin/fckeditor/editor/filemanager/connectors/php/file/38783981430.pdfIn PDF document text
    • http://seoaudytor.pl/userfiles/file/39019065691.pdfIn PDF document text
    • https://resortweeks.pro/userfiles/file/nodowezulumipe.pdfIn PDF document text
    • http://aeon-dev.com/uploads/files/202109100420163408.pdfIn PDF document text
    • http://knuhpharm.kr/userfiles/file/20210907003143.pdfIn PDF document text
    • http://hrzservices.com/uploadfiles/file/914910525.pdfIn PDF document text
    • http://factory-01.com/js/upload/files/64030871473.pdfIn PDF document text
    • http://barrospizzadb.com/uploads/files/gufanaxa.pdfIn PDF document text
    • http://contrast.no/ckfinder/userfiles/files/83298751041.pdfIn PDF document text
    • http://bowlingkillers.com/imgdb/files/nadab.pdfIn PDF document text
    • http://biswasi.com/userfiles/files/zoxemapaziduzod.pdfIn PDF document text
    • http://1day2night.com/UserFiles/file/90680842796.pdfIn PDF document text
    • https://andhimazhai.com/images/files/33945206203.pdfIn PDF document text
    • https://kungfuclasshongkong.com/louis/taichi/ckfinder/userfiles/files/zurufanubupi.pdfIn PDF document text
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613e07046be05---vejelit.pdfIn PDF document text
    • http://raegcafe.com/uploads/files/1083434015.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f1a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A4 19448 bytes
SHA-256: 9b61868757d4e379a84b983d3e6872578fa9076b55e645989aefad01dc9f4dd6
font_01_sfnt_off000124ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124EE 10504 bytes
SHA-256: 3f879eed086b4cc56d75f09cdc3f48bd8a724df9c1233f3160f66d2fb86a2041
font_02_sfnt_off00013cfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CFB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1