Malicious PDF — malware analysis report

Static analysis result for SHA-256 099986907da37c47…

MALICIOUS

PDF

98.9 KB Created: 2021-07-07 00:59:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 16206da082f78a3ae852435fe64870f2 SHA-1: adf3f014a5029fd9236d891d69dc41eb648677ca SHA-256: 099986907da37c4703379ef705203859dee43defbfa8056f884418384a10ef4b
164 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan distribution attempt. It contains numerous links to external PDFs hosted on various domains, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9872

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://laborke.ru/uplcv?utm_term=android+crypto+miner+apk PDF link annotation
    • https://hagepoorter.be/files/files/sakadesesizamixalipij.pdfIn PDF document text
    • https://eltonltd.ru/sites/default/files/uploads/miwuxalogesomukavurigu.pdfIn PDF document text
    • http://cheapmarkt.com/userfiles/file/54663167766.pdfIn PDF document text
    • https://stegopackaging.com/wp-content/plugins/super-forms/uploads/php/files/6bi0dj1032cdb0erb6ulb9sq0c/40918795926.pdfIn PDF document text
    • http://palenice.net/obrazky_clanky/file/85694574931.pdfIn PDF document text
    • http://tubietelbar.hu/uploadfile/tuwemipubaboxajevuxup.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160afb68b69426---saxirotojifulefe.pdfIn PDF document text
    • http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/a3f2902857675b4a4d0e853379930a8e/6711402862.pdfIn PDF document text
    • http://gazosilikatnn.ru/uploads/files/37378569587.pdfIn PDF document text
    • https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/iqg65tro79tbrrlntluc71nf1t/22030438202.pdfIn PDF document text
    • http://cn-polylysine.com/d/files/35800448123.pdfIn PDF document text
    • http://apricomm.com/userData/board/file/tazufifililelelitaderu.pdfIn PDF document text
    • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16081f9bdc4739---43673833313.pdfIn PDF document text
    • http://alexanderkanevskyartgallery.com/clientMedia/file/33553762392.pdfIn PDF document text
    • https://goacetours.com/ckfinder/userfiles/files/10965855076.pdfIn PDF document text
    • https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da80969f22a---27227464919.pdfIn PDF document text
    • https://simon-daulte.com/ckfinder/userfiles/files/74917923449.pdfIn PDF document text
    • http://ipceurope.com/assets/file/95245746069.pdfIn PDF document text
    • http://ilovehikari.com/uploads/files/ferudoj.pdfIn PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc06bbeaab7---83515035437.pdfIn PDF document text
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9f85c4324a---68469023290.pdfIn PDF document text
    • http://amdind.com/userfiles/file/26925283605.pdfIn PDF document text
    • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/548504cc6a7304ebf74a33a98c313ef3/96352234916.pdfIn PDF document text
    • https://mszukam.pl/dat//file/zarofikesebe.pdfIn PDF document text
    • http://udemadriatic.com/userfiles/files/93592288407.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010b19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B19 17420 bytes
SHA-256: f02622994f838c871b936d49ae3fc41a45785ca6fd7d8a4775c59c70a5e8b8f0
font_01_sfnt_off00013842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13842 10648 bytes
SHA-256: e980612f0a32d4159ff00f578344e36e711e6012187c67c7d5d3f481f7b0c43a
font_02_sfnt_off000150ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x150AD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off000168be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x168BE 16116 bytes
SHA-256: 74ea40c6abafff908ba0a862ebf25ee1d47d31f530ca964bdc695191fb21b084

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