Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd2032dbb86242ec…

MALICIOUS

PDF

84.0 KB Created: 2021-09-01 23:06:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 1d99e9b4c7dabde48f2ddc8a9b48b82c SHA-1: 5acdd964209cd20b738337a0ee56f97db7462758 SHA-256: bd2032dbb86242ecacba0172a52d22277301923d6eac6fc0fbc6d90874e59c5f
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and exhibits characteristics of an advance-fee scam. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to host malicious content or redirect users. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly indicates the document's intent is to defraud users through fake prizes or delivery fees.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://pixomot.ru/uplcv?utm_term=gin+rummy+for+4 PDF link annotation
    • http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ec9e1f2c36b---rutilelorugofe.pdfIn PDF document text
    • http://showplus.ae/userfiles/files/fitezuvajapasev.pdfIn PDF document text
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607685e88a590---mobanokaporagebolezato.pdfIn PDF document text
    • https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/2d1b006919bbca7761f0134f4f5d1d63/66739689823.pdfIn PDF document text
    • http://xn--66-6kc8bfmkmjd.xn--p1ai/admin/ckfinder/userfiles/files/xusemikagirixetekus.pdfIn PDF document text
    • https://dienlanhbachkhoa.info/upload/files/nirowikevogusuna.pdfIn PDF document text
    • https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/f9ae8dd6164269dc7aae06a404411060/19644109216.pdfIn PDF document text
    • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce5edbe069---36675447198.pdfIn PDF document text
    • https://edusfera.pl/upload/file/feruwiximib.pdfIn PDF document text
    • http://vinag7furniture.com/app/webroot/files/editor_upload/files/pesidubive.pdfIn PDF document text
    • https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/f9f9264d945f9d8b21e7de8fbc701afd/pugulej.pdfIn PDF document text
    • http://crystal-lamp.ru/uploads/files/lesuruxutalidad.pdfIn PDF document text
    • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/k00u06gm6t24ms698c3l18e3l3/58631955145.pdfIn PDF document text
    • https://carcarnet.com/home/sandbox/domains/hkdance.tritek.hk/public_html/ckfinder/userfiles/files/35434375667.pdfIn PDF document text
    • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/425169e6171e3cfc7329b4d4b801ed2a/66115257230.pdfIn PDF document text
    • http://vuason.vn/upload/files/ganojuduroza.pdfIn PDF document text
    • http://toyteepee.com/uploadfiles/file/2105090147038513918t05j9.pdfIn PDF document text
    • https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/76bb6330839dc5babfef4b0491cc23a8/kexawugavuzise.pdfIn PDF document text
    • http://lumieretvie.com/userfiles/file/31111857088.pdfIn PDF document text
    • https://sharenkon.com/files/pamafaloleliletaded.pdfIn PDF document text
    • https://xn--interpeas-r6a.es/upload/files/90039518581.pdfIn PDF document text
    • https://rcot.org/userfiles/file/1451506364.pdfIn PDF document text
    • http://ytbozhuo.com/upload/file/112218269647.pdfIn PDF document text
    • http://medicapoland.pl/uploaded/file/faduxetofebikadimatusozes.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_off0000e363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE363 10100 bytes
SHA-256: a3172b9bdac80145a5c8c2a25aa3d993c56155bbabbedc34a0b57158bb530950
font_01_sfnt_off0000f9df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9DF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000111f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111F1 18640 bytes
SHA-256: edeb3ff43e932164144ee4ad83dee5558833b09ec546c23dec50f85df617f999