Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ee39d3ceaba6deb…

MALICIOUS

PDF

77.7 KB Created: 2021-07-03 01:42:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 04f883dba52645a8eaad0c77143ce149 SHA-1: a90b7b410599df7480f6a6edd4777596b8018dec SHA-256: 5ee39d3ceaba6deb54b51cdce082fd5c8ed0e55d0bd599dc4b81e1fe23b14e85
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links to external resources, many of which point to compromised WordPress upload directories or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to lure users to download further malware. The embedded URLs suggest a phishing or credential harvesting campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://jodhpurtravels.com/nbloom/fckuploads/file/ruxavujomafu.pdf In PDF document text
    • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160750d9f5213d---xoloxikexukagaroso.pdfIn PDF document text
    • https://pharma-tools.eu/galeria/file/39280771488.pdfIn PDF document text
    • https://sinhadventure.com/uploads/file/dibiraziloko.pdfIn PDF document text
    • http://fgosvo.ru/files/files/39576140106.pdfIn PDF document text
    • http://brkvinc.com/userfiles/file/retufuforap.pdfIn PDF document text
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c12bf38fe---giwujusesi.pdfPDF link annotation
    • http://cgl.lu/userfiles/files/28967922932.pdfIn PDF document text
    • https://conexus-study-abroad-travel.com/ckfinder/userfiles/file/53972385251.pdfIn PDF document text
    • https://praward.tw/wp-content/plugins/super-forms/uploads/php/files/a0cca28b94f1e7105212b45191ab109f/pubav.pdfIn PDF document text
    • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/5767e611014cfeac0dfaff3de13d4267/dutovijalulomixizakoja.pdfIn PDF document text
    • https://farmacieitaliane.com/documenti/file/nifop.pdfIn PDF document text
    • https://walkandsmile.com/userfiles/file/5853649201.pdfIn PDF document text
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160a5d4234e63a---bekaserawivugal.pdfIn PDF document text
    • http://atya.eu/files/file/kakebebidetujumil.pdfIn PDF document text
    • http://se-ty.ru/uploads/userfiles/file/xidoxowikapimexuligaf.pdfIn PDF document text
    • https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/saoa7m5lit6ik5vl7bsp6b6vje/padosarafokudifoko.pdfIn PDF document text
    • https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/osj6vde1r2omn39bfunu73nvej/rifanisodimowizana.pdfIn PDF document text
    • https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/e5b472160a11840e5ef604c9e1c2f1c7/posezanunodovipaf.pdfIn PDF document text
    • https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/160852dbc601f4---linavakovuraxobib.pdfIn PDF document text
    • http://beiks.info/public/file/jopafotesuli.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6726e9c89---17030376987.pdfIn PDF document text
    • https://elesud.it/img_pagine/file/46177687703.pdfIn PDF document text
    • https://audreyheselmans.com/_files/file/zefolajigefuzezidekodu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=419+area+code+statePDF 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_off0000d15a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD15A 10320 bytes
SHA-256: d2a079b9b1ba697eee0fe412f93ab8b2788d661035a33c0f34f86c0ce4603023
font_01_sfnt_off0000e8d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000100e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100E6 15864 bytes
SHA-256: 0064702fb035863442b6c8a0a423b9bb0fcbbaa39d32c1b465cd1abacfa27ec3

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