Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e92809ea27960ec…

MALICIOUS

PDF

82.4 KB Created: 2021-09-06 10:12:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 6bb9536a7e13fe4de1563443509e44fb SHA-1: 52cb0c65b0d68a3f3a6cfc9982325fa3dc485d69 SHA-256: 0e92809ea27960ec5cfec7e8649fd4d32d81d526ddd5814ccbf10b9b2cfc5ccd
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document exhibits characteristics of a callback phishing or tech-support scam, as indicated by the 'SE_CALLBACK_LURE' heuristic. The document contains numerous links to potentially compromised WordPress upload directories, suggesting it is part of a link farm designed to host malicious content. While no scripts were directly extracted, the presence of embedded URLs and the ML classifier's high confidence score point towards malicious intent, likely to direct users to further malicious sites or initiate fraudulent calls.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e3ad1018261---31414983059.pdf In PDF document text
    • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/9iau6ft0u66knqesols0mjn114/bomuxixub.pdfIn PDF document text
    • http://globalbizkorea.com/userData/board/file/14935375945.pdfIn PDF document text
    • http://yibetter.com/data/files/noparonu.pdfIn PDF document text
    • http://farashimirooz.com/files/83208306829.pdfIn PDF document text
    • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d29e2941e5e---54928902016.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e02da1b682f---65414503664.pdfIn PDF document text
    • http://csc-021.com/userfiles/file/20210630091201_shkm7r.pdfIn PDF document text
    • http://championsview.net/userimages/25102481704.pdfIn PDF document text
    • https://actor-conseil.com/files/file/35737105980.pdfIn PDF document text
    • http://8njl.com/userfiles/files/feduberunufabitubafirutul.pdfIn PDF document text
    • https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c948ec1950---vivusedixuro.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/0lhup204k1ovs1bt6l3c4f21v7/sowalajitimuvema.pdfIn PDF document text
    • http://epoptavky.com/is/images/FCKeditor/File/93331634370.pdfIn PDF document text
    • https://9ja-bet.com/userfiles/file/60723512598.pdfIn PDF document text
    • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608305528417f---gibivapunejufapunep.pdfIn PDF document text
    • https://beautyyaurient.com/editor_upload/file/samidopiledaf.pdfIn PDF document text
    • http://vhshf.de/File/farojefadaw.pdfIn PDF document text
    • http://uctodane.cz/UserFiles/File/39816759573.pdfIn PDF document text
    • https://cobrawire.com/userfiles/files/73577758716.pdfIn PDF document text
    • https://nicklason.se/ckfinder/userfiles/files/segudivamabakoxajom.pdfIn PDF document text
    • http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093fe556bdb2---jilikebimunezu.pdfIn PDF document text
    • https://careoncall.in/userfiles/files/zovofetomukogitogu.pdfIn PDF document text
    • http://shshalloffame.com/clients/9/93/936f23dc4abb03f6d4a1aae2c8a32781/File/lusafapogifematiwar.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=angina+de+ludwig+en+ni%C3%B1os+pdfPDF 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_off0000dbb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBB6 18376 bytes
SHA-256: fa75f80d23ddb3ddb7746feca63041382c3f14c33e8908506cd85a075271b468
font_01_sfnt_off000109a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000121bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121BC 10848 bytes
SHA-256: acc1b6c5ed022aa67818749a77b76eca0de6c9cc4067cd33faac972fcdc6074a

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