Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1e2c6b09a26267c…

MALICIOUS

PDF

161.2 KB Created: 2021-07-23 04:20:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-16
MD5: 0a2a88ba354c8e187d8a106e810d934e SHA-1: 8d2196899c623935c0ba12081bca6833b8eda758 SHA-256: e1e2c6b09a26267cdd52205390619eef86ecb962e180892459b58be1736b479f
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to compromised WordPress sites, indicating an attempt to host and distribute a second-stage payload. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution. While no scripts were directly extracted, the PDF structure and heuristic firings point to a common pattern of using compromised sites for initial payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://bearings-home.com/userfiles/file/zarog.pdf In PDF document text
    • http://ssteelelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/34590359345.pdfIn PDF document text
    • http://aite-materials.com/upfiles/file/70322552519.pdfIn PDF document text
    • https://beltamas.by/content/Files/vusaju.pdfIn PDF document text
    • https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/ot0l698ghr521ff6l3bge6h9i3/goxoralesodipolodolipun.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/285ff30e6a0b1d8b4980287994e94a39/44079525298.pdfIn PDF document text
    • https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/c7778410e56abc8d30630e49822d04e3/gitivobuj.pdfIn PDF document text
    • https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609be6a79afe8---wivopurefozoxilemut.pdfIn PDF document text
    • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088c22b84ebf---66220760636.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/0ja3s259rfs6kc2lp8gkka52g7/39235925499.pdfIn PDF document text
    • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080b1124beb2---walare.pdfIn PDF document text
    • http://stroisvias.ru/userfiles/file/32190434682.pdfIn PDF document text
    • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/160988d156be80---80465520425.pdfIn PDF document text
    • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608959243c8f4---23925531819.pdfIn PDF document text
    • https://taxforce.nl/userfiles/files/89810710728.pdfIn PDF document text
    • https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/um1t39fjoemnt3kj3dtu6nql1e/tosinulo.pdfIn PDF document text
    • http://minisadik-margaritka.ru/admin/ckfinder/userfiles/files/75709685122.pdfIn PDF document text
    • https://aneri12.cz/res/file/podiwiruleraxafi.pdfIn PDF document text
    • http://chiesamadremarsala.eu/userfiles/files/66089613548.pdfIn PDF document text
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609829bb8bba4---tujexusiwerudazegedanob.pdfIn PDF document text
    • https://slide-bearing.com/d/files/gububulagagakax.pdfIn PDF document text
    • http://tubietelbar.hu/uploadfile/fimekifivedotuporam.pdfIn PDF document text
    • http://samnakthodrahassob.com/userfiles/file/60791875494.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/407056fc771f5b9b8e53c6f1609a97a3/rafugosanijigegobedej.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=what+does+rode+hard+and+put+up+wet+meanPDF 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_off00021a7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21A7E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00023295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23295 10700 bytes
SHA-256: 65fa15789826496d4501124b1e9ac96ebdb7f1126a5b0be49d0323cbd1024bfc
font_02_sfnt_off00024afe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24AFE 16852 bytes
SHA-256: bf6e8243dd6d49e637186a99174b71b0cd713dcd06d6e0f9bec893d8ae0dd99d

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