Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0ce2cd8063f9a98…

MALICIOUS

PDF

81.4 KB Created: 2021-08-18 17:01:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-16
MD5: db5442266ce502f089af1e07396e2965 SHA-1: e2eb3d8c2fe277c344380d0e94da5b6657c0044e SHA-256: b0ce2cd8063f9a98ec60c4f6f67af2485ad6ae435ba1370aa1846de620083598
156 Risk Score

Malware Insights

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

The file was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. It contains a link farm pointing to numerous websites, many of which appear to be compromised WordPress installations or disposable hosting, suggesting a phishing or malware distribution scheme. No scripts were extracted, but the PDF structure and numerous external links are indicative of a lure to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://wastran.ru/uplcv?utm_term=descargar+discografia+de+fito+y+fitipaldis+gratis PDF link annotation
    • http://sumtinathholidays.com/admin/uploadfiles/file/29361362904.pdfIn PDF document text
    • https://chezgregoire.fr/userfiles/92982287389.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160932b939fe56---luvabusa.pdfIn PDF document text
    • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dde5e9bfdf2---50809025582.pdfIn PDF document text
    • http://danchrisjewelry.com/userfiles/file/bojinesosuj.pdfIn PDF document text
    • https://leavingcare3plus.ch/userfiles/files/megapidoledokigigopuxam.pdfIn PDF document text
    • http://josephfellerlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/54743568450.pdfIn PDF document text
    • https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/1aab634b274ab3ece5b2c36fb3594305/negifejepawavobogabov.pdfIn PDF document text
    • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/e4i99k5kvpqjcka0o3fgprgb4h/tatodatugonawomepigonuk.pdfIn PDF document text
    • https://khanikango.in/file/dewanovunaruga.pdfIn PDF document text
    • https://paklya.su/design/img/upload/file/1704447615.pdfIn PDF document text
    • http://chokmanee.com/userfiles/file/gapadikifubok.pdfIn PDF document text
    • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a26a831aaf4---38903112687.pdfIn PDF document text
    • https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/c86f43ae0862041bc938307aedf9dc38/42662337362.pdfIn PDF document text
    • http://murasakijr.com/uploads/files/kopazokumezexapotaxumu.pdfIn PDF document text
    • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/635462bff6a742e8e73e56a398945b08/subomifonozenepuje.pdfIn PDF document text
    • http://sierrahighalumni.com/clients/878712/File/seliripumox.pdfIn PDF document text
    • http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/0927da17273c6d075d412d943c533ab2/14330693591.pdfIn PDF document text
    • https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/qa7633ke10qrffoespodp0j1cj/2089249416.pdfIn PDF document text
    • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/c379d2d5a850daa6ee2e8c1a399a19d9/kapowedubefizilimivekir.pdfIn PDF document text
    • https://altinhediyeler.com/calisma2/files/uploads/ragoxin.pdfIn PDF document text
    • http://maytinhtuyenquang.com/home/maytinhtuy/domains/maytinhtuyenquang.com/public_html/images/file/zuwudufemowutajomumuti.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_off0000d4fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4FA 18344 bytes
SHA-256: 6e0308584f4b389e0bf8af878011f448e2c820ff6c3e16b060c9e2dfa18a1cb2
font_01_sfnt_off000103f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103F6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011c0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C0D 10804 bytes
SHA-256: c0adcae1733ff084f9be226ed1eeeb97603801deaa9e41a8960486af949f1df1

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