Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2c96ec732438818…

MALICIOUS

PDF

85.0 KB Created: 2021-09-04 18:27:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: e9908c84a00cdc8fe4eb1e736aa47a13 SHA-1: d62cc72fb6b4b91d887cf3cf77a5a69af0d1c225 SHA-256: f2c96ec732438818fe86f187cc80fed6bfa8d46c032ef6afed75705e1866016d
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous links to PDFs hosted on compromised WordPress sites and disposable domains, suggesting a link farm designed to distribute further malicious content. The presence of multiple PDF download links indicates a likely phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/t6i980igjvb0egr4c57jjdvn4p/69916658665.pdf In PDF document text
    • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/1r2jm498rf6rvh15dne7ras38o/72346288152.pdfIn PDF document text
    • http://pinxedien.net/upload/files/puvotulikakababuxo.pdfIn PDF document text
    • https://picinterior.com/ckfinder/userfiles/files/52077704931.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a4dbb66852a---gisiwezofetozok.pdfIn PDF document text
    • https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606d20fd14b83---murobanovaperabo.pdfIn PDF document text
    • http://youngthisyear.com/ckfinder/userfiles/files/15437040448.pdfIn PDF document text
    • https://gelblighting.com/userfiles/files/51216095183.pdfIn PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a220facd1f7---lojatofukizozobil.pdfIn PDF document text
    • http://bycongroup.com/UserFiles/file/81152052471.pdfIn PDF document text
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160adff9466dc9---37809806582.pdfIn PDF document text
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16086e3e71eb61---20307330128.pdfIn PDF document text
    • http://contactconfiance.com/files/files/lajetebid.pdfIn PDF document text
    • https://bancodevida.com/bancodevida/admin/images/image/file/44850670527.pdfIn PDF document text
    • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/c68ceb9b94e830508e0399f21aa2b69c/sesifonimobedu.pdfIn PDF document text
    • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b269e3083b0---lugutanawikubesepezu.pdfIn PDF document text
    • https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608c6934a3b46---vufadufofisanenanujakejod.pdfIn PDF document text
    • https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/b56d8b31f83c68336ed81d148b7f2cbd/javufe.pdfIn PDF document text
    • https://avphunter.ro/ckfinder/userfiles/files/98863708639.pdfIn PDF document text
    • http://www.umadai.com/ckfinder/userfiles/files/24610217174.pdfIn PDF document text
    • http://bartuceviri.com/userfiles/file/40242445907.pdfIn PDF document text
    • https://textosolutionslinguistiques.ca/upload/editor/file/57557050986.pdfIn PDF document text
    • https://299-45.com/CKEdit/upload/files/9202783755.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=high+performance+planner+pdf+free+downloadPDF 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_off0000e5b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5B8 18104 bytes
SHA-256: 713b8b5950c7660447224202fd24e74176dff7e8ac149ee73d66237255761354
font_01_sfnt_off00011501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11501 10880 bytes
SHA-256: 0d7edec24c79e2f790a9d1937bbd558995ccaf98c92bf9e3cae384e1c2fcac6c
font_02_sfnt_off00012db4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DB4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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