Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0d054fa391d69b…

MALICIOUS

PDF

73.2 KB Created: 2021-09-18 21:08:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 3f3dfa1c07991123ff43b83be805091f SHA-1: c0d7dcadc9ed418102104d14a1de7e3ab973c34c SHA-256: 0e0d054fa391d69b9ca4f0a3b0c76ecbea3be67aa31aa637f727f092bf96a952
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, many pointing to compromised WordPress upload storage or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and URL patterns are indicative of malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://oniceh.ru/uplcv?utm_term=android+listview+sample+code PDF link annotation
    • https://agermag.ro/mm/file/zofaximojujufemux.pdfIn PDF document text
    • https://awinresource.com/uploadfile/file/getefobukoraguwofubal.pdfIn PDF document text
    • http://athaj2.specialty-match.com/upload/files/zarafexe.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613590fac5569---7060938217.pdfIn PDF document text
    • http://supair-lux.hu/ckfinder/userfiles/files/84610053805.pdfIn PDF document text
    • https://taevlingar.se/images/pages/file/xozomofobizagoxus.pdfIn PDF document text
    • https://iieng.org/editor/ckfinder/userfiles/files/xoronozofosatonujuto.pdfIn PDF document text
    • http://getsolarnj.com/userfiles/file/15018284036.pdfIn PDF document text
    • http://kronikarp.pl/ckfinder/userfiles/files/94943358006.pdfIn PDF document text
    • http://gianniarnaudo.com/userfiles/files/ditijadurumal.pdfIn PDF document text
    • http://thicongdiennuocmiennam.com/uploads/files/15839860071.pdfIn PDF document text
    • http://goozzl.com/userfiles/files/42693591198.pdfIn PDF document text
    • http://xn--b1afklwjc5g.xn--p1ai/ckfinder/userfiles/files/9951181902.pdfIn PDF document text
    • https://mysmartedu.com/uploadimages/files/kawesogajamoxemitakefete.pdfIn PDF document text
    • https://ceylanotel.com/firma/files/sepikamiwelivinuvexuxe.pdfIn PDF document text
    • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ec89253df0---52234017170.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d8a6c824d7---94645449079.pdfIn PDF document text
    • https://www.parquesanalbertohurtado.cl/ckfinder/userfiles/files/92881347227.pdfIn PDF document text
    • https://jv-cms.crazy-jessie.nl/uploads/files/mimubiwidofu.pdfIn PDF document text
    • http://gpszone.hu/upload/userfiles/file/kurul.pdfIn PDF document text
    • http://livestocktool.com/d/files/vojejodutovikeza.pdfIn PDF document text
    • https://klcmekatronik.com/ckfinder/userfiles/files/kalujixut.pdfIn PDF document text
    • https://sharedsynergy.com/userfiles/file/pefudusuvodaxitesipin.pdfIn PDF document text
    • http://kooijobs.in/ckfinder/userfiles/files/61977437496.pdfIn PDF document text
    • http://eros-arena.de/eros/userfiles/file/toniverawopuxoliresam.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_off0000bd77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD77 15800 bytes
SHA-256: 0236c4a2cf526f24930a0b56e88151d1eb69151b05b19a11e45a7d2929c5f3e3
font_01_sfnt_off0000e600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE600 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000fe17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE17 10808 bytes
SHA-256: b69d48b6d9ea7894468d4279de9326580550e05467475c768c56c3f34cc46752

Open this report in the interactive analyzer, or submit your own file for analysis.