Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d8fc580f0801c01…

MALICIOUS

PDF

74.2 KB Created: 2021-09-07 23:16:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 6540c6dbb4c27728775f0f0426dc15b1 SHA-1: 76f9afa8b6cdf9ef6714081291f9e1f32ad752d8 SHA-256: 0d8fc580f0801c01bf7c1108a7e370b68337ad54806cdbc4fcde19c5fdb158ab
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm pointing to multiple compromised CMS upload locations, suggesting a phishing or redirection scheme. No scripts were extracted, but the presence of numerous unknown URLs associated with compromised sites strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1609613f019898---gawefedadufotaj.pdf In PDF document text
    • http://nagymester.com/userfiles/file/toruvomipesamofutoxetate.pdfIn PDF document text
    • https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/32dec2ccaf76c33f33493808ad705f55/75084132703.pdfIn PDF document text
    • https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/513a1b78ea5fb05ffacaf588096d135c/xubala.pdfIn PDF document text
    • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/ebqjn3rt5u15l8h7a4hf6a8hq2/pazufureruze.pdfIn PDF document text
    • https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/855e5698b325002c21a9385636a3e896/60859658680.pdfIn PDF document text
    • https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c071d98ced7---25324327491.pdfIn PDF document text
    • http://okwmd.com/upload/fckeditor/file/75077550936.pdfIn PDF document text
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160876f81dec12---91192259528.pdfIn PDF document text
    • https://www.reflectionuk.com/wp-content/plugins/super-forms/uploads/php/files/1b0jqf4eg3cqnrnq87ig7ia2ic/dafisigulopup.pdfIn PDF document text
    • http://snap-drone.com/userfiles/file/sezuvorukom.pdfIn PDF document text
    • http://2ds-creations.fr/userfiles/file/fanegimukirekatobamosada.pdfIn PDF document text
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160725a516ac1c---60275862346.pdfIn PDF document text
    • http://www.videocopilot.net/assets/public/ckfinder/userfiles/files/33709435502.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160acd04158e3c---36977391299.pdfIn PDF document text
    • http://transbur.ru/admin/ckfinder/userfiles/files/70698407940.pdfIn PDF document text
    • https://jbdclothiers.net/emailer/userfiles/file/34783275048.pdfIn PDF document text
    • http://donateagift.eu/userfiles/file/menalaki.pdfIn PDF document text
    • http://quatangsongvan.com/hinhanh_fckeditor/file/63041422338.pdfIn PDF document text
    • https://www.letspassdriving.co.uk/wp-content/plugins/super-forms/uploads/php/files/pkbss0qlj6b6a5u7ei2mdgaulm/xodomosipajitapijokuvuvo.pdfIn PDF document text
    • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5d3780b94f---vodilovavarexekusatijon.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=manual+briquette+making+machinePDF 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_off0000bd4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD4F 17364 bytes
SHA-256: af841523f00c0050ad06a0ad0705f281f980431ac44f5422f35da8b2fbcbb5e2
font_01_sfnt_off0000eaad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAAD 10860 bytes
SHA-256: bf839ef88bb312dc9670acccf9f3d0d99d01ce95ad7fc7d0590c0ed3c28edb33
font_02_sfnt_off00010338.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10338 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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