Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2dc8b1471feba72…

MALICIOUS

PDF

102.1 KB Created: 2021-07-03 01:44:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 2b0996620a89c3c911493e5f357ef06e SHA-1: a9b649321a4d6292975ae9c627f329e14f4a729d SHA-256: e2dc8b1471feba72761a6466f1eb8dafeb2500d88d8a376e12154d6d2f2f5dd2
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a large number of external links, many of which point to compromised websites or disposable hosting, suggesting a phishing or malicious redirection attempt. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to lure users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9711

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.
  • 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://lamaisonducoeur.ca/upload/editor/file/46353384135.pdf In PDF document text
    • http://softwarefactory.nl/images/file/79508954023.pdfIn PDF document text
    • http://alhs1973.com/clients/64426/File/gujetaxufanarupipupami.pdfIn PDF document text
    • http://timandlor.com/userfiles/file/3026354611.pdfIn PDF document text
    • http://coxfamilyreunions.com/clients/5/56/566bc9ad745482f371977770c3e6b383/File/murij.pdfIn PDF document text
    • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086064f96500---50315974671.pdfIn PDF document text
    • http://ecohort.com/userfiles/files/55930972823.pdfIn PDF document text
    • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca0d441680---89658018242.pdfIn PDF document text
    • https://dondepodemosir.com/userfiles/file/33815214101.pdfIn PDF document text
    • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc2d0aa6a11---zenuwirija.pdfIn PDF document text
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d7c94b1269---zajilik.pdfIn PDF document text
    • http://mawaevents.com/uploads/file/91646745591.pdfIn PDF document text
    • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/235029bce43c70a7985b314ab36d2791/vevazojiwimozase.pdfIn PDF document text
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/2e830bb0e135532e871b703d525ef9dc/nixomodoxupi.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/4kpijulcogsubce0brr7s7ptvg/56693534965.pdfIn PDF document text
    • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/pogonejuvuvofakinos.pdfIn PDF document text
    • http://cs-web-design.de/ablage/userfiles/files/bivuleworozobigini.pdfIn PDF document text
    • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/tqbfiv0s96tuu89dm5gk296021/58137328868.pdfIn PDF document text
    • http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/c79bfc00f9ba7895dc95ac441dc2b710/47742757260.pdfIn PDF document text
    • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5da9598304---zijetom.pdfIn PDF document text
    • https://africanresearchcenter.com/userfiles/file/zixazuluxaxe.pdfIn PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160baa45025186---42169134867.pdfIn PDF document text
    • https://thietbivesinhanhhuy.com/asset/files/29544490673.pdfIn PDF document text
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/13058f63bab5a3da57f5ce77a65c49d3/13581008675.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=the+meaning+of+kalebPDF link annotation
    • 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00016b93.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x16B93 18640 bytes
SHA-256: c759ea43a4cbc77b85ff6be2f774b306a02642e498e8cbc8d7198de46203f980
font_00_sfnt_off0000f205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF205 3464 bytes
SHA-256: a8161c2f5ba9235eb51b4fcc43b6bb219725019365cb8d38f9ec25dfe5ce54ff
font_01_sfnt_off0000ff84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF84 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11796 24504 bytes
SHA-256: 153bab94ed55a1dc85a1919cebb7e8af4adcb47b6857680c2040ca7e198d46e0
font_03_sfnt_off00015405.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15405 10488 bytes
SHA-256: 0ff4b47e94721c61c1e00f31c53c6f70005c337607055c6767d6331675edf457

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