Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea7f02349ff313e1…

MALICIOUS

PDF

87.1 KB Created: 2021-09-22 12:15:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 2a2f95feeab3cc68fc80229837dc3378 SHA-1: ef395234dae941066ccd456a0a769a1368e575ed SHA-256: ea7f02349ff313e170e0eb0165e9879188cef57204fda3deb3853907caf7cf32
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document exhibits characteristics of a phishing lure, specifically a link farm designed to redirect users to download potentially malicious files. The presence of numerous links on disposable hosting, coupled with a high ML classifier score and ClamAV detection, strongly indicates malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs suggest an attempt to exploit users through deceptive downloads, likely as part of a broader phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16132ba85ad3b8---52658502512.pdf
    • http://albertf.madteam.net/ckfinder/userfiles/files/48490928834.pdf
    • https://onderhoudnlgarantie.nl/upload/file/febumibudixerorakawalusi.pdf
    • http://sm300159.agchost.com/userfiles/files/sogasaxu.pdf
    • http://bukharageorgia.com/sites/default/files/file/zazufibigadowaviwipevo.pdf
    • https://cabsfromheathrow.com/userfiles/file/58012315255.pdf
    • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613ba74c860e4---91237827451.pdf
    • http://sanzmendia.com/userfiles/files/58137690051.pdf
    • http://1544-7419.net/upload/fckeditor/file/losul.pdf
    • http://agro-partner.com/Image/files/68865101384.pdf
    • http://songdolandmarkcity.com/userfiles/file/busemakokewefi.pdf
    • https://fokusmedia.com/images/uploads/bebidakoxofalefirariwe.pdf
    • http://rem-stroymont.ru/img/file/24037923667.pdf
    • http://www.tsahimmongol.com/uploads/images/files/58798463066.pdf
    • http://www.majbrno.cz/uploads/files/dujoviporopatajomanivipok.pdf
    • http://www.introspekta.si/ckfinder/ckeditor_uploaded_files/files/92854434498.pdf
    • http://tpokebar.com/uploads/files/8461854319.pdf
    • http://komodovo.ru/upload_picture/zadagusenujafetolukilunek.pdf
    • http://globalcenterhotels.com/bot/ckfinder/uf/files/81700718446.pdf
    • https://viessmannboilers.ca/fck_upload/file/mapolavavuki.pdf
    • https://terracetemayonetim.com/upload/ckfinder/files/64890412064.pdf
    • http://compow.net/ckfinder/userfiles/files/25049570856.pdf
    • http://travelci.ru/ckfinder/userfiles/files/kexurinibulikogiralekeluz.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=township+game+download+apk
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef8c.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8C 16792 bytes
font_01_sfnt_off000107a3.bin
992c9377a0cc882afc175f449465739fb113bf5fdd820f2a04514ed8c7056884		 pdf-font-stream PDF embedded font (sfnt) at offset 0x107A3 10780 bytes
font_02_sfnt_off0001201c.bin
ccab63cd5cf88b7b2115b0d79446fadeedaa10449a53e347ade5e8e414c9ccea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1201C 18096 bytes

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