Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce482ad43c4efe64…

MALICIOUS

PDF

84.3 KB Created: 2021-07-04 01:43:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 8d903c681abb4d7048cd665928443f36 SHA-1: dcf723c174c9d8134d244f04949b1a02968da07a SHA-256: ce482ad43c4efe644b6c0c8fd657cf1ffc92a97bfacc310f32560dc9f0b75cf8
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, directing users to multiple external URLs, some of which are hosted on compromised CMS uploads or disposable domains. The primary purpose appears to be to lure users to malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://fundacionamigosdelmarcaribe.ong/ckfinder/userfiles/files/pivejufujafebupeba.pdf In PDF document text
    • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093c99b6a91d---44060574397.pdfIn PDF document text
    • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/45bfc1fa6126315a6c28476cb5f04c76/62185325745.pdfIn PDF document text
    • http://netisiletisim.com/guvennet/resimlerfiles/kojevinadufapiti.pdfIn PDF document text
    • http://anhbanglaw.com/userfiles/file/mufevezifuxoguxugaxije.pdfIn PDF document text
    • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/fb419dfcca30fde0889599cbad09175f/jevorol.pdfIn PDF document text
    • https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/00bg83ea70hqr4a8nt8nim90e7/89770242275.pdfIn PDF document text
    • https://arte-salon.ru/upload_picture/22128305827.pdfIn PDF document text
    • https://www.themeshcowork.com/wp-content/plugins/super-forms/uploads/php/files/309ffb73f22d939d435fe45fff206380/9955284440.pdfIn PDF document text
    • https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/pus6ms3l3h37d7gen7p6gqe4t3/25468310741.pdfIn PDF document text
    • http://vswet.ru/f/32448679902.pdfIn PDF document text
    • http://accessiblevehicleservices.com/userfiles/file/webexirema.pdfIn PDF document text
    • https://udruga-invalida.hr/files/85400766062.pdfIn PDF document text
    • http://zgkimsteszew.pl/img/upload/files/kumukobudojigubit.pdfIn PDF document text
    • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160adf62fc78f7---18799190392.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/gtl6c85rjfuulguhi4jc38hfv4/66556279711.pdfIn PDF document text
    • http://nineslash.com/user_file/file/rijidel.pdfIn PDF document text
    • https://rosycaffe.com/file/55671734544.pdfIn PDF document text
    • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f2691e504e---39643274573.pdfIn PDF document text
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608109e7dfc85---bavesenekateke.pdfIn PDF document text
    • https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/npgj2bp2si8plhn565f87gjn5g/35940682722.pdfIn PDF document text
    • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba132b2af6d---gemuguzigipukozetug.pdfIn PDF document text
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/328bpns9563m6cg2k2o93rn906/7012576928.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=mathematics+practice+and+problem+solving+grade+8+answer+keyPDF 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e34a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE34A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fb61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB61 11660 bytes
SHA-256: 7a47a0879b90a3600a71a9dd0c6506e175e884db108294a843d99f86e43a3f12
font_02_sfnt_off00011698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11698 17160 bytes
SHA-256: 054ca7969106dbc288e73401d0f094fcc3771d1bff70846b33022554f1af69e6

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