Malicious PDF — malware analysis report

Static analysis result for SHA-256 47657b07ed74e1d5…

MALICIOUS

PDF

84.9 KB Created: 2021-08-12 03:14:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 033db37c453915adc4aba19123fc68dc SHA-1: 28b36df6baddb8ecc4b82d9653c2f28fa7415b4b SHA-256: 47657b07ed74e1d5a2e385ccc8928c531dd64aaadeeb6db09b7e41c48802be97
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. The presence of embedded JavaScript (T1059.007) suggests the PDF is actively trying to exploit vulnerabilities or redirect users to malicious sites, aligning with a spearphishing attachment (T1566.001) delivery method.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://oniceh.ru/uplcv?utm_term=doce+vingan%C3%A7a+3+filme+completo+dublado+em+hd PDF link annotation
    • https://corumosmanlimakina.com/js/ckfinder/userfiles/files/96783253878.pdfIn PDF document text
    • http://udemadriatic.com/userfiles/files/96501953428.pdfIn PDF document text
    • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/16110f38b4f0d5---debuvivokidi.pdfIn PDF document text
    • http://italianopizzeria-pg.com/uploads/files/vazakemoj.pdfIn PDF document text
    • https://securitydm.rs/slicice/file/gewogutuzew.pdfIn PDF document text
    • https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/347b8fd252eba68e6e0a88071250e552/58782732004.pdfIn PDF document text
    • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/abd28cccoma9g58h8qa2v3g8an/fujiw.pdfIn PDF document text
    • http://rowanfamilyreunion.com/clients/28915/File/vunatiza.pdfIn PDF document text
    • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b39bb4b31d---63820767048.pdfIn PDF document text
    • https://domilot.com/uploader/files/67221755299.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084877da366b---napaw.pdfIn PDF document text
    • http://chsbicentennialclassof1976.com/clients/c/c2/c283bfa2537a82fb79a670aa087b4bd4/File/merufes.pdfIn PDF document text
    • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/4d5u6aki3q9tb1v5k5nao2ps9o/sovisuxos.pdfIn PDF document text
    • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/72202956197675b3728c8597d01930a1/vuzakefewijilaj.pdfIn PDF document text
    • http://taeguektour.com/FileData/ckfinder/files/20210530_13C98B3A5A867DA4.pdfIn PDF document text
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608432494f7ca---wugerajoseburugadali.pdfIn PDF document text
    • http://www.christianhouseshare.com.au/ckfinder/userfiles/files/japaxejatabok.pdfIn PDF document text
    • https://preciseenergygroup.com/media/78855247938.pdfIn PDF document text
    • https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/cadad157180fb44a14c6da8a40468485/80826461138.pdfIn PDF document text
    • https://cahayamimpi1.com/contents//files/79985655505.pdfIn PDF document text
    • http://isvpro.com/custom/files/tixizafu.pdfIn PDF document text
    • http://travellightnepal.com/userfiles/file/12586489683.pdfIn PDF document text
    • https://guineaservicesproviders.com/gsp/files/21765169432.pdfIn PDF document text
    • http://bitite.lv/media/txt/122/file/98101548759.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073e5b628507---fejalaboja.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_off0000e0ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0AB 11476 bytes
SHA-256: 79502110a46868639147e9adeae35444480075c101d34cc91777732b976c30e4
font_01_sfnt_off0000faea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAEA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000112fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112FC 19136 bytes
SHA-256: 74ad459a79f4343dd1ed429f94aec29d3c88c603d59a88fbb69aaa805face400

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