Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d89a07cebb10c03…

MALICIOUS

PDF

83.8 KB Created: 2021-06-28 16:15:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 64576f4e4b5e8059651094db77a8d070 SHA-1: f1bd0ff5bef294d60cdea23713beae3e4cbdae57 SHA-256: 0d89a07cebb10c0332051f0fe8b37179e5f0f55c91d0295c685f1d4ce3476944
196 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to compromised CMS upload directories, a common tactic for hosting malicious content. The 'SE_PAYMENT_REDIRECT_LURE' heuristic strongly suggests the document's content is designed to trick users into believing there are new payment instructions, likely leading them to click on the embedded links. While no scripts were directly extracted, the PDF structure and link farm indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160848e460d2f3---33880214235.pdf
    • https://actorconseil.com/files/file/bulepure.pdf
    • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/e01b6b2c18a9de96b83d7fea2a054bbd/3002186044.pdf
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bbc4b99332b---rugofukewuwowiw.pdf
    • https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/4ee638ae91bce8773120f6f2afcb5153/58133800263.pdf
    • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/83c1b43e7a65bd58c9342ef82e32c479/67234103289.pdf
    • http://bensonlandscape.com/editorData/file/xonulukuruzotonijipomeru.pdf
    • https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/r3o0p8822alu3ncksgffjaeupc/gisupavazofirebixuvabozot.pdf
    • http://www.deewanalarab.com/up_imgs/9009460317.pdf
    • http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3bf46e3b8---10349840922.pdf
    • http://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160bd8fe337976---walezelomoruvaxoletip.pdf
    • http://diamond6ranch.com/userfiles/file/kojamel.pdf
    • https://ctapigroup3.com/contents//files/bevufetepodavusewivu.pdf
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608246d13a3a2---14128738782.pdf
    • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/0f1fdf66176b514a26c766256532fcea/sepep.pdf
    • http://thebranchoflife.org/clients/3/37/37a84c4c47f147f839b5d5a44bb1b86c/File/zadapifupigudepalu.pdf
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608eccbba2693---67916238483.pdf
    • http://sellmysayarah.com/userfiles/files/wobojegulawa.pdf
    • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/efbd495aff57539aceccf37901f69f3d/vidalenatulu.pdf
    • http://pcccmiennam.com/media/ftp/file/zapoji.pdf
    • http://stinpo.com/ckfinder/userfiles/files/kufajugiwi.pdf
    • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16072ffe7b5587---38802071499.pdf
    • https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be0db036f23---35272426274.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=1+cent+house+images
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e577.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xE577 16792 bytes
font_01_sfnt_off0000fd8e.bin
29cd9629968e15f9a75ca87040c9ac3b028e138dabe1fd4e1f5831ae2490b65f
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD8E 10584 bytes
font_02_sfnt_off00011596.bin
6ab3f42d75ead8319c64296c93ab1222ea6dd4bb09c99848791776c2cfda6dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x11596 17360 bytes