Malicious PDF — malware analysis report

Static analysis result for SHA-256 00aee29922bd258f…

MALICIOUS

PDF

94.7 KB Created: 2021-06-28 15:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: 5d0a81a70f04989dec4f1c316aea34fb SHA-1: 594f42245ae4d3593515bf77e63b95d95e004daf SHA-256: 00aee29922bd258faafb5de9a78899ffe8f89dd02bce6d5995ceb9afb52110e7
156 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites and disposable domains, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution through these links. No scripts were extracted, and the document body was unreadable, so the attack pattern is inferred from the URL structure and heuristic firings.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9746

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 http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16073d5edb5e40---71191543144.pdf In PDF document text
    • http://deryalvincotokurtarma.com/userfiles/file/39761159590.pdfIn PDF document text
    • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086ca1ce9d2b---ketuwovorerozonopokoveki.pdfIn PDF document text
    • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/tvs9u2rotcfuhi6ugk983a56a0/situxexuwu.pdfIn PDF document text
    • https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/3jbujcdig8pqesqmtopmn1tsco/ximujijegef.pdfIn PDF document text
    • https://ankaratemizlikcim.com/depo/sayfaresim/file/gipasiwozezef.pdfIn PDF document text
    • http://arcomproltd.com/userfiles/file/9712586159.pdfIn PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16079689a5e340---xesufarorar.pdfIn PDF document text
    • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/23475307795.pdfIn PDF document text
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e0f9b01676---kakewiziwewujutiga.pdfIn PDF document text
    • http://amadpich.com/userfiles/file/74933688715.pdfIn PDF document text
    • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/5885b155810faf0d1faf7a2b38e6d925/51325666846.pdfIn PDF document text
    • https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/dkltqe0af13iiqu4hchljoha6e/mamem.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/kc8hoa70numvb5t4if9dijt4ju/waxuzep.pdfIn PDF document text
    • https://www.duffylighting.com/wp-content/plugins/super-forms/uploads/php/files/8a7c9861d8a43030ee8724d626e9341b/jexiropupalajupa.pdfIn PDF document text
    • http://www.advokat.com/app/webroot/img/fck/file/54540349360.pdfIn PDF document text
    • https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/b7d776f4de7e87a56452cfd7416699e3/rotogujararibitar.pdfIn PDF document text
    • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16097a346ef7df---bojibeluzumugeza.pdfIn PDF document text
    • http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16091991733500---43327277512.pdfIn PDF document text
    • https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/c0fe24f1cc2e603ae882036df5273dc0/retusuvub.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607abc06b245e---juwomivevi.pdfIn PDF document text
    • https://naucharts.com/ckfinder/userfiles/files/remoko.pdfIn PDF document text
    • http://cokhixnktientien.com/Images_upload/files/66325345109.pdfIn PDF document text
    • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/4256f2786e9a962939d49c604718f478/dajivak.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ab5a5808292---sunapiw.pdfIn PDF document text
    • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/139847dab782474b0adc8ffca1cdd4c6/tilexalowilo.pdfIn PDF document text
    • http://cnc-soustruzeni.cz/files/file/kakoputiwaz.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=mo+bends+downloadPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ecd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECD4 28028 bytes
SHA-256: 93422a58cbcaaf23dff9846c8d734cde2597b7f14b2e80cea5844505284e1267
font_01_sfnt_off00012756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12756 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F6D 10172 bytes
SHA-256: de097f335086c2c358936e0877a6a8cb41fcb3fd1c00a57a796ce5034ce06306
font_03_sfnt_off0001565a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1565A 16064 bytes
SHA-256: a013ce2342554bbd70a9f85285a6053b67e9b25eaba0dd22223cc179b1b1ea16

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