Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d7c9c50dfaa08de…

MALICIOUS

PDF

82.4 KB Created: 2021-09-11 21:12:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 478a0c314072619ce9d589b5e1112f20 SHA-1: b22db4813c77dd72d2383d062bbfce904f12282d SHA-256: 0d7c9c50dfaa08de95be18b3fe0257e84d1c7d80f3e908ec5b353d00b9534278
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous external URIs and exhibits characteristics of a link farm. A critical heuristic indicates a 'Clipboard command execution lure,' suggesting the document instructs users to copy and paste content into a shell, which is a common technique for executing malware. The presence of multiple suspicious URLs points towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://philabc.ru/uplcv?utm_term=moto+g9+plus+root PDF link annotation
    • https://mimpiindah168.com/contents/files/rajaxili.pdfIn PDF document text
    • https://avistravel.ro/userfiles/file/14139307260.pdfIn PDF document text
    • http://zjhywt.com/images/upload/File/96817357593.pdfIn PDF document text
    • http://churchtextile.com/userfiles/file/lekazorizesaseturun.pdfIn PDF document text
    • http://suamayin.biz/userfiles/file/gexasorat.pdfIn PDF document text
    • http://ylpqzl.com/ckfinder/userfiles/files/kemabefojunofeka.pdfIn PDF document text
    • http://tksvolga.ru/userfiles/file/mozemurewipuwom.pdfIn PDF document text
    • http://vhz.cz/user-files/3638868462.pdfIn PDF document text
    • http://cafesezony.ru/fck_editor_files/files/sepidodubal.pdfIn PDF document text
    • http://cwesp.biz/upload/file/56533479696.pdfIn PDF document text
    • http://archissimo.eu/userfiles/files/bapavizumatajuzotul.pdfIn PDF document text
    • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161361dd9d07db---popeso.pdfIn PDF document text
    • http://mastera-mix.ru/ckfinder/userfiles/files/37734909055.pdfIn PDF document text
    • http://consade.com/userfiles/file/bisolixidudajokesopakufo.pdfIn PDF document text
    • http://tungalag.mn/userfiles/files/javawo.pdfIn PDF document text
    • https://braus.uz/images/shared/file/38691089643.pdfIn PDF document text
    • https://sentinels.ro/userfiles/file/luwatiki.pdfIn PDF document text
    • https://alwillislifecenter.org/ckfinder/userfiles/files/zasaboxagumetoxigukiba.pdfIn PDF document text
    • http://michellenevinracing.com/FCKeditor/file/97984868199.pdfIn PDF document text
    • https://maxlinder.com/admin/assets/ckfinder/userfiles/files/59827836019.pdfIn PDF document text
    • https://ka-base.no/images_students/files/52559928697.pdfIn PDF document text
    • https://indirimlipin.com/calisma2/files/uploads/kowira.pdfIn PDF document text
    • http://em-mould.com/ckfinder/userfiles/files/85235233538.pdfIn PDF document text
    • http://zkojicin.cz/userfiles/file/vaxozi.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_off0000de54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE54 18344 bytes
SHA-256: 72486abf0789c474c5c41ae5aad1cdc1acdada6e720ac14a99e3e965c97fa6ab
font_01_sfnt_off00010d2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D2C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12543 10200 bytes
SHA-256: 53ea1f10057216068f1823c415b9b723efca73a9d3e26f06c5215d3976340c7c

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