Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c08922c099bc956…

MALICIOUS

PDF

84.2 KB Created: 2021-06-27 00:07:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 15c7c74fe5f346870e83c0ba2f4f859e SHA-1: ca186ca0491cd101ce5569ce553b38854d33604a SHA-256: 6c08922c099bc956e09a261632f05e98b77d84bb8c1c8fc88e30941da80fe668
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious Link

This PDF file was detected as malicious by ClamAV and ML classifiers, exhibiting characteristics of a phishing lure. The document contains numerous links, many pointing to compromised WordPress uploads and disposable hosting, suggesting a link farm designed to redirect users. The heuristic 'SE_PAYMENT_REDIRECT_LURE' strongly indicates the document's intent is to trick users into updating financial details by impersonating a financial institution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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 https://crysiq.ru/uplcv?utm_term=difference+between+there+was+and+there+were PDF link annotation
    • http://hsound.ro/images/custom/file/78574401020.pdfIn PDF document text
    • https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/94b8v1dglhariobdshpmg6nfk0/lewopeguwulitukavaz.pdfIn PDF document text
    • https://capitalsyndic.com/userfiles/file/92014616275.pdfIn PDF document text
    • https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/a244ba6426b0be28996b988f31d9d251/gamisujegiwiko.pdfIn PDF document text
    • https://hijaulumut.com/contents//files/85237807401.pdfIn PDF document text
    • http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608b37a68fab6---nixorokusafodozam.pdfIn PDF document text
    • https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/935387e9907c83711e2e2a7b530512f8/47123638359.pdfIn PDF document text
    • https://licorne-hotel-restaurant.com/userfiles/file/57947323226.pdfIn PDF document text
    • http://teerosy.com/ipp/images/uploads/files/83752943197.pdfIn PDF document text
    • https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071814c205fd---58852956001.pdfIn PDF document text
    • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160a0ed5da121d---zamefed.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1609837b340ffc---xurinugevisumorar.pdfIn PDF document text
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081298ae2d28---gixorajujosiwune.pdfIn PDF document text
    • http://al-bandak.com/userfiles/file/dufagadisajogazakivazodul.pdfIn PDF document text
    • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/12d5d58cec1c8b1496b647b639e6822a/leworelitidozolel.pdfIn PDF document text
    • https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/1608b0fd278b48---93637798282.pdfIn PDF document text
    • http://augustaelectricalwork.com/editorData/file/donegelon.pdfIn PDF document text
    • http://kirilmazbardak.com/userfiles/file/vovajevelurenatuwesako.pdfIn PDF document text
    • http://sochi-polyana.com/ckfinder/userfiles/files/bolasudemenizaj.pdfIn PDF document text
    • http://pappteam.hu/userfiles/file/teletogogejujikukifusifuf.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087bb2c87839---80911859112.pdfIn PDF document text
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/dc8b86b1bc64b7652c320e8ec3d3723c/276940593.pdfIn PDF document text
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b2107bd5f80---84259559397.pdfIn PDF document text
    • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/03ec50e83445dd10250c58d044940e05/dofanejenanegujunekedojub.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_off0000e592.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE592 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fda9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDA9 10636 bytes
SHA-256: 867603e66e32a758915c76c771fb70acfda05c57713481d04eae91546f69178d
font_02_sfnt_off00011605.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11605 16780 bytes
SHA-256: efed1b5e75ba9eef99c32668f4b78113eeeb01056502b254ae78f0142a22e54b

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