Malicious PDF — malware analysis report

Static analysis result for SHA-256 c22e0e3a14af5f17…

MALICIOUS

PDF

189.3 KB Created: 2021-07-26 06:02:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: 671cbbc268c529fe8c292f42721779d2 SHA-1: a961483f97652de6d3dc856809a09e84e33bab31 SHA-256: c22e0e3a14af5f176fbc66d23deeb9d8b06e6eb6ce097eb3a64668825cc0adaa
204 Risk Score

Malware Insights

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

The PDF contains numerous links to potentially compromised websites, suggesting a link farm or phishing attempt. The 'SE_BROWSER_INSTALL_LURE' heuristic indicates the document likely prompts the user to install a browser extension or update, a common tactic for credential theft or malware delivery. The 'SE_INVOICE_LURE' heuristic further suggests a pretext for this action. No scripts were extracted, limiting further analysis of direct payload execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9248

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://www.beautyvogue.ch/Files/file/sinosukarezidozom.pdf In PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608650354c289---pividazepofutaserowutirex.pdfIn PDF document text
    • http://goodwill.pl/userfiles/file/xixofawisewofizewaza.pdfIn PDF document text
    • http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d805430ec---73786485642.pdfIn PDF document text
    • https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/s3j8aqbm7a446nhedbvh0v1i50/23307770503.pdfIn PDF document text
    • https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/127b16f479fb9d5d155a7066de1dc1dc/riwakolemasifuj.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d54feed9ed---38475420218.pdfIn PDF document text
    • http://accapierre.it/userfiles/files/16533452408.pdfIn PDF document text
    • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/e5fi1vhsgj17gqvuispromcif4/56219491773.pdfIn PDF document text
    • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fcb62829371---wegexusisegitonesapodap.pdfIn PDF document text
    • http://anhuishangbiao.com/upload_fck/file/2021-4-29/20210429051426116797.pdfIn PDF document text
    • http://ridgefieldpark1967.com/clients/3/39/39eebdc8797e30ee23d4fd57d071fd44/File/79201614976.pdfIn PDF document text
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091575c63cbc.pdfIn PDF document text
    • https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/8de7f5bf963f75c20f5d7a5dff2a8ced/74767507025.pdfIn PDF document text
    • https://topaldanang.vn/uploads/image/files/19220956491.pdfIn PDF document text
    • https://nepalimodelagency.com/userfiles/file/mukakuki.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/095f08d780577d2f53af39139dd8f99a/nusijejoxisig.pdfIn PDF document text
    • http://forresterfamilyreunion.com/clients/c/cc/cc72bfd2512333311cc1ef5a4fdef90f/File/62336508871.pdfIn PDF document text
    • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607a77228b216---21533523590.pdfIn PDF document text
    • http://evpltravel.com/xv_image/file/51551306250.pdfIn PDF document text
    • http://retco.ge/ckfinder/userfiles/files/tasusafovapodufuvetagubub.pdfIn PDF document text
    • http://xn--80adpfaaeictf0c6c7i.xn--p1ai/public/file/nonunokesivigu.pdfIn PDF document text
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b4d0ab210de---22740100022.pdfIn PDF document text
    • https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/d57ac7bee519924ca23c2d68a02f20fe/78080233698.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=spotify+account+generator+githubPDF 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000259fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x259FD 3092 bytes
SHA-256: 1ae615209a4d82feef3b1b6fab0076b553daeb92deb32a3e97c03a7ed6fd7f25
font_01_sfnt_off00026699.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26699 16608 bytes
SHA-256: cfbe17e7505804be6a2c74d13bfacd1b1c5c34d4aca18e65c8beed1c4552717f
font_02_sfnt_off00027e2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27E2F 21316 bytes
SHA-256: 0a683682bc2d49e1263a2a2f1a8a3947f3382eecad64a2c33031072e7fc2c020
font_03_sfnt_off0002b362.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B362 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_04_sfnt_off0002cb7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB7B 10976 bytes
SHA-256: aeb4722704fe830243f0b11ad941b5bcac55ef7e0840cd3d89563c07b5f81731

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