Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba0e1c501d9b8d85…

MALICIOUS

PDF

74.2 KB Created: 2021-09-28 09:02:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 22b3500181d836673d24dff5e7de1d01 SHA-1: d2b3f884eb429e58f12e5d6b8fbe76bb417f5c72 SHA-256: ba0e1c501d9b8d85de49c5df0d3a7616f34754227460f3063030b021a7fdde61
186 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a phishing lure, indicated by the 'SE_PASSWORD_ARCHIVE_LURE' and 'SE_CALLBACK_LURE' heuristics. It likely directs users to download a password-protected archive, a common tactic to evade gateway security. The presence of numerous embedded URLs, many pointing to potentially disposable domains, further supports a malicious intent, possibly related to distributing malware or facilitating further phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://www.dereformasenalicante.com/archivos/files/73485786762.pdf In PDF document text
    • http://eminenceinc.com/userfiles/file/xatejalemax.pdfIn PDF document text
    • http://biplano.eu/userfiles/files/72806210919.pdfIn PDF document text
    • https://probidjp.com/ckfinder/userfiles/files/20210928_055712.pdfIn PDF document text
    • http://rapabzenec.cz/obrazky/files/robetuxogusolazepadod.pdfIn PDF document text
    • http://nanobubblevietnam.com/uploads/userfiles/file/gagawutokilewufadij.pdfIn PDF document text
    • http://metalzilemboeventi.com/userfiles/files/sewoxatesafuzoga.pdfIn PDF document text
    • http://szkolaprzybranowo.pl/ckfinder/userfiles/files/tidujawevogilafuz.pdfIn PDF document text
    • http://teplolux72.ru/upload/file/vukuzibutej.pdfIn PDF document text
    • https://alirezamirmohammadi.com/images/upload/files/41220724038.pdfIn PDF document text
    • https://francoisdaulte.com/ckfinder/userfiles/files/ponimaj.pdfIn PDF document text
    • http://antopol.topmebli.com/content/xuploadimages/file/zorewigexomomewutus.pdfIn PDF document text
    • http://uptownfallschurch.com/uploads/files/xitafekodebuv.pdfIn PDF document text
    • http://ctnphrae.com/ckfinder/userfiles/files/tubarofekubadoxebawu.pdfIn PDF document text
    • http://markjfox.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/bemevuv.pdfIn PDF document text
    • http://polishedskincare.com/minaret/uploads/file/koginanegowefigixaxukinub.pdfIn PDF document text
    • https://chulintemple.org/CKEdit/upload/files/67790781754.pdfIn PDF document text
    • http://tndgdemo2.com/ckfinder/userfiles/files/1004383037.pdfIn PDF document text
    • http://fli.edu.mn/ckfinder/userfiles/files/71797762087.pdfIn PDF document text
    • http://bige.vn/uploads/userfiles/file/36225864086.pdfIn PDF document text
    • https://devcons.org/uploads/userfiles/files/zuferusapopani.pdfIn PDF document text
    • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1614b3a6dac40d---fidisoraselezalogalojal.pdfIn PDF document text
    • https://nulifeus.com/~nulife/userfiles/file/65916041178.pdfIn PDF document text
    • https://ldcpc.com/ckfinder/userfiles/files/69916180142.pdfIn PDF document text
    • http://kingsbrite.com/kingsbrite.com/userfiles/file/xosizexipazozoxapegajur.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=frp+bypass+apk+freePDF 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_off0000b6cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6CC 10216 bytes
SHA-256: 0b8643484e475ab82d0c718901f454a17e63a4f997639ddb1b1eb0e43b0596d7
font_01_sfnt_off0000cda1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDA1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000e5b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5B3 20580 bytes
SHA-256: 3e0dafbef87ee4da68a52198625f123f6ac7129ef2d3a484dd321a3d85ad3a94

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