Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaad6d6bd7f10b2c…

MALICIOUS

PDF

115.0 KB Created: 2021-08-17 03:38:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: b069d2067148f3bd9b5826eecf143ecf SHA-1: 0586180e4ff3f5e1da55347ec1d0e709d624576a SHA-256: eaad6d6bd7f10b2cfd6895afd82d490cdfcb0e2f25a0e0f045dff4e294e368c2
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, containing numerous embedded URLs that point to compromised WordPress uploads and other disposable hosting sites. The primary purpose appears to be redirecting users to malicious destinations, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

Heuristics 6

  • 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 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://smidgel.ru/uplcv?utm_term=is+amaranth+leaves+edible PDF link annotation
    • https://thewaves.net/wp-content/plugins/super-forms/uploads/php/files/loa43lu8fcdem2bs326641v20b/45945899637.pdfIn PDF document text
    • https://weborder.cloud/userfiles/file///75589161361.pdfIn PDF document text
    • http://turagent007.ru/userfiles/file/lugeburarugudil.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084090f36bb4---verubadiwaloxur.pdfIn PDF document text
    • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd9cfdc0e50---duvikosazopojifelilozozon.pdfIn PDF document text
    • https://bnovum.hu/downloads/86785350856.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/16086b02134e9e---faximepaneku.pdfIn PDF document text
    • https://xn--80afc2apd5n.xn--j1amh/upload/files/31772651225.pdfIn PDF document text
    • http://novichiha.ru/pic/file/palijuk.pdfIn PDF document text
    • https://hpsoft.shop/upload/files/gikefusesalavugurugapes.pdfIn PDF document text
    • https://blueparadise.pl/userfiles/file/63988050469.pdfIn PDF document text
    • https://kurtwohndesign.ch/userfiles/files/maxajetivu.pdfIn PDF document text
    • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4f8937a874---21587840741.pdfIn PDF document text
    • http://alternatifmedikal.com/img/userfiles/files/teregapebuxuporixutike.pdfIn PDF document text
    • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609bc8bb5043c---44815622210.pdfIn PDF document text
    • https://asiarsolutions.com/userfiles/file/58649435196.pdfIn PDF document text
    • http://lnianemarzenie.pl/userfiles/file/98376492836.pdfIn PDF document text
    • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16073ff5c7bb25---40318660042.pdfIn PDF document text
    • http://sushiosushi.com/uploads/files/24558528203.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/46b0c4aa6cca4c915f556a0cb4bacb79/maxalulilu.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160940780de583---tokoni.pdfIn PDF document text
    • https://store-connector.com/_upload_bilder/_filemanager/file/53121030365.pdfIn PDF document text
    • http://bukhatirhomes.com/userfiles/file/94956627342.pdfIn PDF document text
    • http://akademia-jedenastka.pl/zdjecia/fck/file/28415586700.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_off000155e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x155E0 22312 bytes
SHA-256: b680fa74e8d00cd0b3d3a7c21821e76afb1f1065925cf4e68f6a874a6d0e5498
font_01_sfnt_off00018d91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18D91 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001a5a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A5A8 10552 bytes
SHA-256: f51a17a077628f2bf8a11c8bc22ff7013e51102e11252b274812cf65e95c716e

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