Malicious PDF — malware analysis report

Static analysis result for SHA-256 62892ed1bf71b77b…

MALICIOUS

PDF

80.0 KB Created: 2021-09-19 18:52:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: abf08082a3d3d62139e49898f2979558 SHA-1: 60af7ee71a27bb901e9e83e4958d63e2e13ebd98 SHA-256: 62892ed1bf71b77b71603d2e334849aeaf48da83150f5db6ebcbc192fe3ff8d5
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains, suggesting a phishing or scam campaign. The PDF structure and embedded content indicate it's designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://huntic.ru/uplcv?utm_term=what+do+i+do+with+eggs+in+minecraft PDF link annotation
    • https://biblioteka-koneck.pl/ckfinder/userfiles/files/geziduvatabipakorozivo.pdfIn PDF document text
    • http://zulaikhatextile.com/userfiles/files/35471176962.pdfIn PDF document text
    • http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/puvedosawimajas.pdfIn PDF document text
    • http://kenzoum.org/home/integrity/public_html/ckfinder/userfiles/files/faguwigiko.pdfIn PDF document text
    • http://gearcon-eng.com/file_media/file_image/file/xikaxirosomewivop.pdfIn PDF document text
    • http://chengzechem.com/upload/files/29066623120.pdfIn PDF document text
    • https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/g0lnmd9c7mm1b3coub3h8do6l0/deweg.pdfIn PDF document text
    • http://clarksville.net/wysiwygfiles/file/10339959621.pdfIn PDF document text
    • https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/c699a1c11521527e7d7632b88e24ec31/94975664786.pdfIn PDF document text
    • http://animationcoach.com/userfiles/file/relivatovi.pdfIn PDF document text
    • http://ideatity.com/ckfinder/userfiles/files/26944150692.pdfIn PDF document text
    • http://fueandhair.com/userfiles/files/90070283209.pdfIn PDF document text
    • http://chi-kara.net/Upload/files/lawexuzebikowulupenijo.pdfIn PDF document text
    • http://ahlhy.com/uploads/file/111037402292.pdfIn PDF document text
    • http://waetsukai.jp/system/ckfinder/userfiles/files/xipipokiti.pdfIn PDF document text
    • http://soluzionebenessere.eu/userfiles/files/zokaronojegejavi.pdfIn PDF document text
    • http://355353.ru/userfiles/file/bipibikomise.pdfIn PDF document text
    • http://workontext.ru/media/file/77109503624.pdfIn PDF document text
    • http://mdsalon.ru/img/lib/file/kezenepakojavitekolevuru.pdfIn PDF document text
    • https://eghamatkade.com/basefile/eghamatkadecom/files/60236424349.pdfIn PDF document text
    • http://innotack.com/userfiles/files/negivasatedijo.pdfIn PDF document text
    • http://sellmysayarah.com/userfiles/files/98266640671.pdfIn PDF document text
    • http://nhadatv.com/webroot/img/files/xexufukuredezez.pdfIn PDF document text
    • http://wwsm-us.com/files/file/fixadidisavinulibijel.pdfIn PDF document text
    • https://gionggiacam.com/ckfinder/userfiles/files/risarodofegu.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_off0000d4bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4BF 17192 bytes
SHA-256: 1931a0864b58be315b19f9fb1822d9959c6a1164c6afef07b68a8d8d7c8b936d
font_01_sfnt_off0001014f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1014F 10956 bytes
SHA-256: f2f7bb46f3b16d7242f4a61fb114df896ea965d353ef9ff9686b8a719e67256a
font_02_sfnt_off00011a62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A62 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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