Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e06ce6942fa4d91…

MALICIOUS

PDF

80.7 KB Created: 2021-09-03 06:19:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 6eef40cdcfe9f1e3449d19243fc653fd SHA-1: ed2d07a06b732212cc3a7167028df4e753f33cf5 SHA-256: 0e06ce6942fa4d9135c0e26dcaf849f12864b251d4ce1d92f45f384e051facef
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous external links, many of which point to compromised WordPress upload directories or are hosted on disposable domains, indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing campaigns that leverage link farms to redirect users to malicious sites. No scripts were extracted, but the structure and URL analysis point to a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9846

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://acrgroup.nl/userfiles/file/vunadetolugotep.pdf In PDF document text
    • http://rustproofingottawa.com/userfiles/file/61199754086.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/n5vjcjk78fmvl161hsgd016isv/75625222860.pdfIn PDF document text
    • http://brilsports.ro/userfiles/file///wafovaxax.pdfIn PDF document text
    • https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/flagilokvfu464kis3c90u5d11/gatepikusu.pdfIn PDF document text
    • http://zaun-produzent.de/userfiles/file/jisovugukefizebikaxofugo.pdfIn PDF document text
    • https://stgeorgedentalcare.in/ckfinder/userfiles/files/22813049920.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/44014b4c13d8dcec49986551737af858/xurerudumovu.pdfIn PDF document text
    • http://bestpokeya.com/uploads/files/jiretukafesebux.pdfIn PDF document text
    • http://globaltruthmediagroup.com/clients/a/aa/aa8380eac451876ae6ab993bf3a720d6/File/82698334993.pdfIn PDF document text
    • http://3e3i.com/UserFiles/file///33919658738.pdfIn PDF document text
    • https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/7708np23mbakpqtd28nd6hu25t/tubotuf.pdfIn PDF document text
    • https://www.bevillelecomte.ovh/ckfinder/userfiles/files/tanilexukelenojadokak.pdfIn PDF document text
    • http://aedelsur.com/contenido/files/80526877397.pdfIn PDF document text
    • https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/a0935a967a24b0fd2e2612c0cd6e870e/faruralopajoxiwegufewob.pdfIn PDF document text
    • http://cs-golfclub.com/ckupload/files/tuluvakoposipuko.pdfIn PDF document text
    • http://stellamaris.cz/userfiles/towixofuzape.pdfIn PDF document text
    • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/lfdf6ar30i13lp0a3si1q8kanq/71612077945.pdfIn PDF document text
    • https://foundryindia.org/userfiles/file/vanosokulifigam.pdfIn PDF document text
    • http://telekommarketing.com/firme_data/files/63672485668.pdfIn PDF document text
    • http://travellightnepal.com/userfiles/file/rotala.pdfIn PDF document text
    • https://pirkitpadangas.lt/ckfinder/userfiles/files/fovopeki.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcf6ad5c25b---50038897471.pdfIn PDF document text
    • https://vv-alc.nl/uploads/files/91665940534.pdfIn PDF document text
    • http://lezeckastenakosice.sk/upload/files/lumozimumalutevizodile.pdfIn PDF document text
    • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c274792eca1---58257777511.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=calendario+escolar+2019+a+2020+sep+pdf+para+imprimirPDF 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d155.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD155 19380 bytes
SHA-256: f8b8c5a0ed1718769665e10ef5da5a0f0f6789bdad1a137cd98aa75ac681cfe1
font_01_sfnt_off00010281.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10281 11176 bytes
SHA-256: 4f1ddbc44905f268886babab781da11b1f802ee4c74810ef557c8a73961d1cbc
font_02_sfnt_off00011cab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CAB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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