Malicious PDF — malware analysis report

Static analysis result for SHA-256 29eee751754fd899…

MALICIOUS

PDF

86.4 KB Created: 2021-06-29 18:57:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-15
MD5: babc52d5426c478ad7bac838451bac49 SHA-1: 99387341e0d0b60f1ec7a87088bd756c357daff0 SHA-256: 29eee751754fd899d5b0a184eed8be7fdbfb32d9c9ca3d8a8871559aca63e46a
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It functions as a link farm, containing numerous URLs pointing to potentially compromised WordPress sites and disposable hosting. The presence of external URIs and link farm characteristics suggests a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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://smidgel.ru/uplcv?utm_term=the+other+woman+full+movie+streaming PDF link annotation
    • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/d7326bafb30b320ec2b819fa2eaf214c/83977181202.pdfIn PDF document text
    • http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608091dd712bb---faxelalu.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/2c9432508fc6875821e1bfd0c6056674/pabibikazawamekikujareva.pdfIn PDF document text
    • http://baaningdoi.com/file_media/file_image/file/rosoj.pdfIn PDF document text
    • http://asja-doll.ru/userfiles/file/rafomejozijaluzivusagode.pdfIn PDF document text
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/c426be1a36d2b8065c3032c740b22338/61868056636.pdfIn PDF document text
    • http://szrealty.net/uploadpic/2021-6/file/2021060521423473499.pdfIn PDF document text
    • https://zegabilisim.com/calisma2/files/uploads/mitivubepisirasusajetusix.pdfIn PDF document text
    • https://fundreamz.com/ckfinder/userfiles/files/92273570577.pdfIn PDF document text
    • https://noithatkuongthinh.com/uploads/files/50124257745.pdfIn PDF document text
    • https://pet-fashion.ro/mm/file/vusawazatasenalivurip.pdfIn PDF document text
    • http://verduciautodemolizioni.it/userfiles/file/79344312159.pdfIn PDF document text
    • http://weymouthhighschoolclassof62.com/clients/5/50/50fe23896e84432c97ff20d680692bb9/File/4848772834.pdfIn PDF document text
    • http://abpaluso.com/upload/file/10885849834.pdfIn PDF document text
    • http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/f0e2f8317312e5dedeee70fe3882e8e5/toluga.pdfIn PDF document text
    • http://bukharasuwanee.com/sites/default/files/file/13423469635.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160850c528570e---daxozamizudeximoziz.pdfIn PDF document text
    • http://frezerovka.by/images/fxeditor/file/97496376929.pdfIn PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b671cca58f0---69810117376.pdfIn PDF document text
    • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160773dd30f533---28335889623.pdfIn PDF document text
    • https://blindnow.com/userfiles/file/9915118944.pdfIn PDF document text
    • https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/a9dac9095cefe1ff214fe1d0efc31767/15817227397.pdfIn PDF document text
    • http://fedime.org/imagenes/rizirajeke.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_off0000ed82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED82 17472 bytes
SHA-256: 8c6369989be299076637b57375d323ff541ceea7aa23a47c7f6a61d48f3cee47
font_01_sfnt_off00011b51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B51 10876 bytes
SHA-256: 83aad25cf260ffa85fa4dcdd77acabe142d0880baf944694d22be654d7093213
font_02_sfnt_off0001345c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1345C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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