Malicious PDF — malware analysis report

Static analysis result for SHA-256 702abae81174b217…

MALICIOUS

PDF

96.6 KB Created: 2021-08-02 05:47:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: b21d6ae8cd86799d9239ce14f9934a49 SHA-1: a22d71b8dd1e6da81b217fd9232b17639f5c2407 SHA-256: 702abae81174b2172e9fe88c361e77be9576cdbc152705765816cabb90c99166
196 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a phishing lure, specifically a payment redirection scam, as indicated by the 'SE_PAYMENT_REDIRECT_LURE' heuristic. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms, suggesting an attempt to distribute malicious content or redirect users to phishing sites. The ML classifier also strongly flagged this PDF as malicious, supporting the overall assessment of a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/uoa909qcps7adaa0nlagi2vv22/90237337704.pdf In PDF document text
    • http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160b9953d17709---lotemubutepetu.pdfIn PDF document text
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f5681229f3b---79843096714.pdfIn PDF document text
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/62b962554a9ae7ebc4639599d5fbb18c/36750955576.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b2dd56c645c---53765188415.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1606c937c24da4---regifomirexizasesuzisij.pdfIn PDF document text
    • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/8b035b086fd555b9f78df5159a9b6460/rinipixakonikuvamum.pdfIn PDF document text
    • http://wmhsclassof1977.com/clients/34196/File/82662201643.pdfIn PDF document text
    • http://notariocprietoa.com/notaria/documentos/files/rijebuwisizumi.pdfIn PDF document text
    • https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/ig565f8as0cd88iqg555u617d2/gajulupenijugoroboxuf.pdfIn PDF document text
    • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b716a8dee5---60657791900.pdfIn PDF document text
    • http://unternehmensberatung-hegenbarth.de/userfiles/file/94459063601.pdfIn PDF document text
    • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/7c6aa9e9e44d09dad8963851350e466a/21041635352.pdfIn PDF document text
    • http://www.anclupnapoli.it/userfiles/file/zopanojuzuxiravazexov.pdfIn PDF document text
    • https://ntpuvoice.com/ckfinder/userfiles/files/32914640784.pdfIn PDF document text
    • http://ajivikafinance.com/userfiles/file/bisokegobupuxavijinojaxod.pdfIn PDF document text
    • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/hisr204utt0gh33t4ukovqfk1q/fufeweximotedopade.pdfIn PDF document text
    • http://pr-jam.com/ckfinder/userfiles/files/mofevobegokowuligikosi.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/6d56492964f7f50723b67508f8b4643e/mewinuwutis.pdfIn PDF document text
    • https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/pahso9nd7qa8v02il1tj0b7c4c/paxivevekodipabafivopedor.pdfIn PDF document text
    • https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/08fd422a3adaccc9bb7c15727c6c7336/satanujubogovaza.pdfIn PDF document text
    • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/3uhmudqvv4h8vmhgi2j477jo0u/kunebi.pdfIn PDF document text
    • https://fullgame.hu/uploads/files/dopeto.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=icloud+unlock+free+tool+downloadPDF 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_off00010b2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B2E 27144 bytes
SHA-256: 6588b4b8ccf32e5153fdaf9b0ea8b3123997af1c8cf0913952b1fe6725e306aa
font_01_sfnt_off000144d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144D1 10440 bytes
SHA-256: 1c7d97650996fbf39807f899e582bfa0329c03328049a5850afb999c4701d9a5
font_02_sfnt_off00015cbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15CBD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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