Malicious PDF — malware analysis report

Static analysis result for SHA-256 69d0e12ee1d91730…

MALICIOUS

PDF

84.9 KB Created: 2021-09-05 21:07:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 249c4aa285314a7257ad0c93239c5b6a SHA-1: ed253fba3423c117ca849815a508307bfece3743 SHA-256: 69d0e12ee1d91730bce6551d4969ac7928c4c464c4ee7f202e662fb69a8022e4
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which appear to be hosted on compromised WordPress sites or disposable domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for malware distribution or phishing. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://inwebjor.ru/uplcv?utm_term=jaguar+xj+manual+pdf PDF link annotation
    • https://ckmandarin.com/uploads/tobezukibenoxaxogaja.pdfIn PDF document text
    • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160cff2d6e91bc---gazelapubanenurizigu.pdfIn PDF document text
    • https://yildizwebpaket.com/calisma2/files/uploads/96453868401.pdfIn PDF document text
    • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161006fbf25b68---73530081657.pdfIn PDF document text
    • http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/16080c9af80ba3---belazi.pdfIn PDF document text
    • https://grupa-energia.pl/attachments/file/34248713426.pdfIn PDF document text
    • http://bukharaalpharetta.com/sites/default/files/file/tudopokofugamoxak.pdfIn PDF document text
    • https://seikai.jp/free_images/files/7401515818.pdfIn PDF document text
    • http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/2aa536086cd747b3714b4d4b574b587c/xaludigipexanovosi.pdfIn PDF document text
    • http://ingatlantv.tv/userfiles/files/wojajuledabomijokivunag.pdfIn PDF document text
    • https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ddfa149818b---88144133694.pdfIn PDF document text
    • http://seabeachthailand.com/UserFiles/file/nawirevabajabosaxupojar.pdfIn PDF document text
    • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160bbfedee4ab3---21640653281.pdfIn PDF document text
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c6d3a902825---nukupidonajomoz.pdfIn PDF document text
    • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b92d9c6e55c---33122471001.pdfIn PDF document text
    • https://tolgyesvolgy.hu/userfiles/file/26678065384.pdfIn PDF document text
    • http://bradleyhillsapartments.com/demo/uploads/contents/file/dezabetuxukifosoj.pdfIn PDF document text
    • https://thietkevuphong.com/uploads/image/files/36075554320.pdfIn PDF document text
    • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607789c7417c0---99138513479.pdfIn PDF document text
    • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a29956b4899---putizenerosudul.pdfIn PDF document text
    • http://everest-c.ru/ckfinder/userfiles/files/42591367110.pdfIn PDF document text
    • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/930933bcf6d824b57c03ff9c0e3c8fa1/rixilewawegon.pdfIn PDF document text
    • http://tai-group.com/upload/files/16051373132.pdfIn PDF document text
    • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b38edf019b6---65681861146.pdfIn PDF document text
    • http://officeharbor.com/pdtInfo/969120455.pdfIn PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611b8dc736eb0---33956482809.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_off0000e882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE882 10552 bytes
SHA-256: 296b9f7f85d0cd7a8d18d7672fd5f3d17b450aa3677e5fc5353aa854bade37a4
font_01_sfnt_off00010047.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10047 17756 bytes
SHA-256: da47f6d42857351e21a25f75805a8429ae9319dc0f683a0e9d0b1ecd832b4bbe
font_02_sfnt_off00012dfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DFA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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