Malicious PDF — malware analysis report

Static analysis result for SHA-256 e09005774d0d4753…

MALICIOUS

PDF

87.9 KB Created: 2021-07-04 08:49:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 3740f3a0b02f48337c2adcfd2184d76e SHA-1: 6e35acc8d95e3e1bf01f90d10cf18df3883d2c3f SHA-256: e09005774d0d475315cb512767ccdbd95df955c56318f544107275e85b7f1b22
156 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised or disposable hosting sites, which is a common tactic for phishing or malware distribution. The presence of numerous external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic strongly support this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

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://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/83dba625ef11d299a8f2b369e3fc1ad3/wotudukewilidefijowozi.pdf In PDF document text
    • http://bestbelly.org/content/files/files/lumaropilurufebaz.pdfIn PDF document text
    • http://thamdinhgiadaiquang.com/img/files/xojedubix.pdfIn PDF document text
    • http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba03ca1b884---zomuwibujabuxoxevudajodo.pdfIn PDF document text
    • https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/p0dovnsffh8056fqctd0fh3qcc/xefelu.pdfIn PDF document text
    • https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/b8165772b200696f42c7ff7fe437522c/36022935089.pdfIn PDF document text
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607367f16030b---nolopekajebipowov.pdfIn PDF document text
    • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/8a4a816f3f83a9cb37509839c0347d51/wugizixagebugakefezaze.pdfIn PDF document text
    • http://metabolit-plus.ru/files/file/lodijojagosigox.pdfIn PDF document text
    • http://amphorabeautyclub.com/campannas/file/minisopovafu.pdfIn PDF document text
    • http://beergolfers.com./blog/images/file/62417884082.pdfIn PDF document text
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608ff9ae58a87---kitotogibokobe.pdfIn PDF document text
    • http://sartor.ru/upload/files/mugew.pdfIn PDF document text
    • https://abouelhoulgroup.com/userfiles/files/33369581103.pdfIn PDF document text
    • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078291534949---77447348924.pdfIn PDF document text
    • http://agendatourvietnam.com/hinhanh/file/xorenave.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c5f9c522220---rijerugijilad.pdfIn PDF document text
    • http://allasclub.com/campannas/file/lurisas.pdfIn PDF document text
    • http://amexeuro.com/an3_Uploads/file/9140396538.pdfIn PDF document text
    • http://cfh2.com/clients/d/d2/d2a7b52150a7a947468b52e9b7560e3c/File/25907666398.pdfIn PDF document text
    • http://diysmart.net/userfiles/file/28278169579.pdfIn PDF document text
    • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091c78fd4397---21564864057.pdfIn PDF document text
    • http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ac4b8e7bf2a---furabotadilubatuwigam.pdfIn PDF document text
    • http://tulga.ru/editor/files/64236186707.pdfIn PDF document text
    • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/gj3lbqtu1n9eu6ftju13r960ll/bojesipitunewukibemu.pdfIn PDF document text
    • https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/403026335938eb94cf9b6134cd2d30c8/pivatelifixofikedaxe.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=dua+to+keep+insects+awayPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f516.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF516 10616 bytes
SHA-256: 4adc5916d7c5a297f40b381f788dcbbf0aef1eb7cf135ab04bddf1265e99f380
font_01_sfnt_off00010da9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DA9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000125bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125BB 17044 bytes
SHA-256: 49a5a34bad4211b03bd975e1e47a852c92b3ebb1b61fd1fcc28ec94d9c9f8276

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