Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e39e1f7b97375c4…

MALICIOUS

PDF

77.7 KB Created: 2022-04-08 04:48:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 87ba6919421ae4959c2b46b4ef861ded SHA-1: baf84d1ba3ef3f2a6a46990f0c6d48aca98d9fbc SHA-256: 4e39e1f7b97375c4193cd6e88eb6de340cf885020a8500c796c49194647ea754
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://norin.co.za/YmrXLWy8?keyword=rx-v677%20bluetooth%20adapter PDF link annotation
    • https://tazabojadikeze.weebly.com/uploads/1/3/4/6/134648043/wisopagatujagogol.pdfIn PDF document text
    • http://gazomotor.com/allinone/file/791759730.pdfIn PDF document text
    • https://nagafijobe.weebly.com/uploads/1/3/4/6/134621550/45a1b471e7e97.pdfIn PDF document text
    • https://furetexagorude.weebly.com/uploads/1/3/5/9/135958868/8ef41.pdfIn PDF document text
    • http://www.bioengenharia.com.br/public/libs/kcfinder/upload/files/taluxewemusar.pdfIn PDF document text
    • http://www.siphonicflowmandiri.com/upload/files/gajafidotalulexokefox.pdfIn PDF document text
    • http://eoto.org/assets/kcfinder/upload/files/foduzobajiwevezazadifuza.pdfIn PDF document text
    • https://jepiweluzobadur.weebly.com/uploads/1/3/5/3/135300479/1161080.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16228a6249dc87---mazusoxete.pdfIn PDF document text
    • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1620b21bd2952a---kinozegud.pdfIn PDF document text
    • https://tuzuvujejoru.weebly.com/uploads/1/3/4/4/134442534/b791f45d37378ee.pdfIn PDF document text
    • https://kukibujez.weebly.com/uploads/1/3/1/6/131637652/4551978.pdfIn PDF document text
    • https://datawire.gr/files/files/zekevazidinamo.pdfIn PDF document text
    • https://detudonerud.weebly.com/uploads/1/3/4/6/134660859/f20441df5b0b325.pdfIn PDF document text
    • https://tajeer.co/userfiles/file/44894509699.pdfIn PDF document text
    • https://tumirovuwepilu.weebly.com/uploads/1/3/4/6/134603677/letimowuvurari.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161f96443233f7---86714369934.pdfIn PDF document text
    • http://xn----8sbemnkjd7bfu.xn--p1ai/design/img/upload/file/50161893893.pdfIn PDF document text
    • https://ruh-center.ru/userfiles/file/palujadokuledizabo.pdfIn PDF document text
    • https://psychologgia.pl/Upload/file/11096127302.pdfIn PDF document text
    • https://pupalajapifev.weebly.com/uploads/1/3/1/4/131454396/08723962445340.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_off0000c55f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC55F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000dd76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD76 10828 bytes
SHA-256: 8a06a123131e6e76838c8e6e51e3e5f9a86c17580babfa8b085c492cd9970080
font_02_sfnt_off0000f68c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF68C 19728 bytes
SHA-256: 801bbe6f643e6a44aaebbef878a6b6363c97e3557ad4ccc9f0327a4e2188a439