Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2895a295c8481f5…

MALICIOUS

PDF

95.6 KB Created: 2021-09-07 01:50:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 617e5199ee85d01bd755825dab49e913 SHA-1: 269ae8cb298213f03d1d016e98c2660af6aa964e SHA-256: d2895a295c8481f554fce3917f4a0dbc400bf2d66285d6acd4f0ba5ba4ff2c78
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a phishing or redirection campaign. The heuristic 'SE_PAYMENT_REDIRECT_LURE' strongly indicates the document's purpose is to trick users into believing there are changes to payment instructions, a common tactic in business email compromise attacks. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classification point towards malicious intent, likely involving exploitation or redirection to a phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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=bank+of+america+direct+deposit+form+pdf PDF link annotation
    • http://tcsklife.com/filespath/files/20210906161640.pdfIn PDF document text
    • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/161131d3b813c8---727635916.pdfIn PDF document text
    • https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/hohpclm1277bvpo93v4n8j4oqi/26962313390.pdfIn PDF document text
    • https://budgetparking.ca/admin/uploads/file/noroz.pdfIn PDF document text
    • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b3cfdc848a3---kegewivi.pdfIn PDF document text
    • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/16070b28487638---91258496835.pdfIn PDF document text
    • http://dinhviht.com/images/newtech/files/paduseximav.pdfIn PDF document text
    • http://pensionpoint.cz/userfiles/files/50257261700.pdfIn PDF document text
    • http://www.thaiboat.net/image/upload/File/31931525373.pdfIn PDF document text
    • http://aimic.com/userfiles/file/95892002233.pdfIn PDF document text
    • https://marlin-aquarium.ru/ckfinder/userfiles/files/tidugatabune.pdfIn PDF document text
    • https://linhngapt.vn/upload/files/puxavod.pdfIn PDF document text
    • https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/9ocnhs60vqvqhur92noa0o0gf9/rumipodirupadazidi.pdfIn PDF document text
    • https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/2022fd23af8f8660e1b401c6fc1891a4/66612605601.pdfIn PDF document text
    • https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/b259d8c2c35c364f8254c69ac4903612/juwafototofurejasezirulus.pdfIn PDF document text
    • http://dansecyr.ca/pdf/file/popokawekosapexamavo.pdfIn PDF document text
    • https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/hroehosf6dff1uqmjuogfp4uo2/nadamonolirexunakoref.pdfIn PDF document text
    • https://tractorpulling-emmeloord.nl/upload/file/81922449688.pdfIn PDF document text
    • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4bc10e009f---rajefaz.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bd6ff094bb5---34119717270.pdfIn PDF document text
    • http://okwecare.com/usr/userfiles/files/tevume.pdfIn PDF document text
    • http://lws-realestate.com/userfiles/files/99814320164.pdfIn PDF document text
    • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160922cef0ef44---61001286757.pdfIn PDF document text
    • https://xn--80aanugxqi.xn--p1ai/admin/ckfinder/userfiles/files/43885088792.pdfIn PDF document text
    • http://pkynfe.net/userfiles/file/68398450088.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_off00010c3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C3E 10880 bytes
SHA-256: 426585c76f660292bb5b7c0d6e121c0dde59a7c9924225abf1725e220602ea79
font_01_sfnt_off0001256c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1256C 19964 bytes
SHA-256: e93b4f91054ce33474d22c0eb8d1f235b0d77cd07a169b050b36001ff2d72a3d
font_02_sfnt_off00015864.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15864 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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