Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb26627d038ebe3b…

MALICIOUS

PDF

88.3 KB Created: 2021-08-21 07:36:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 3ab09ddf6eec2f3795c1c781e27a94d4 SHA-1: c297b088b73bbf564cbf13b4fc66090ab5fefd8c SHA-256: eb26627d038ebe3b00f4eccc0de9c06381960784b68e32e31a7bd4f57d56edfd
156 Risk Score

Malware Insights

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

The PDF was flagged by ML and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple potentially compromised websites. The document body is unreadable, but the presence of numerous links to external PDF files on various domains suggests an attempt to distribute malicious content or phish for information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://mrbossamktown.com/uploads/files/51693198223.pdf In PDF document text
    • https://ankaratemizlikcim.com/depo/sayfaresim/file/45323487222.pdfIn PDF document text
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf21a31a197---87000771374.pdfIn PDF document text
    • http://alimentosldm.com/userfiles/file/70445464538.pdfIn PDF document text
    • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/a975030660e5613ddc2e7843883d546d/tikinogeb.pdfIn PDF document text
    • https://takitech.hu/userfiles/file/juwuxosu.pdfIn PDF document text
    • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16082e7e16b165---5593632301.pdfIn PDF document text
    • https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/n48dp5110c96adcifrn7a30lg2/pepufej.pdfIn PDF document text
    • http://kstarsmall.net/userfiles/file///8204863380.pdfIn PDF document text
    • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/59b7196e920e930aebf0db438a6f3020/40918743627.pdfIn PDF document text
    • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/baa109c107fe5aa556b1df3f9b79095d/zazibeved.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1609e3343dc06e---5237018265.pdfIn PDF document text
    • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/efe25f4727f84915803b8ab7756eed26/lenilerizokurijujax.pdfIn PDF document text
    • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1606efaff40efc---wefamavutegeb.pdfIn PDF document text
    • http://mamnonlittlesun.com/upload/files/46716326807.pdfIn PDF document text
    • http://teechart.com/uploads/images/files/wadapokefurodijokerefibex.pdfIn PDF document text
    • https://lawrenceyezersky.com/userfiles/file/94778293338.pdfIn PDF document text
    • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aacb17d0500---vaxapomemosazetepi.pdfIn PDF document text
    • https://nedimgame.com/calisma2/files/uploads/93385661821.pdfIn PDF document text
    • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160af8eeef1d77---refidajoboxejiluv.pdfIn PDF document text
    • http://obchodsezlatem.cz/upload/files/xuratanom.pdfIn PDF document text
    • http://www.naraihillgolf.com/admin/userfiles/file/moton.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=how+to+scan+on+canon+mg3200PDF 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_off0000f807.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF807 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001101e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1101E 10692 bytes
SHA-256: dd150836b1667a714d5879505b24c18cf7d3d51ce09aeeb73c892ccf27d65bdc
font_02_sfnt_off000128bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128BF 16800 bytes
SHA-256: ed2b64f22dcea1bb494d960c89d60cbe439906459128644d7679b41562d8d108

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