Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdcc62832fabd94d…

MALICIOUS

PDF

87.6 KB Created: 2021-09-11 23:27:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 1bed4cb3f8a416c7fc6b5497aa96c6a3 SHA-1: 05f55d448ef2aef766a310cbc1492f265b4ef04a SHA-256: fdcc62832fabd94d3dc38d858cb87a7ed4140eeae48d76d177634c9730bccbce
204 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including a link farm on disposable hosting and a ML classifier flagging it as malicious. The presence of a 'password-protected archive lure' heuristic suggests the document is designed to trick users into believing they need a password to access an archive, likely to bypass security measures. The embedded URLs point to various PDF files hosted on compromised or suspicious domains, indicating a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 8

  • 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
  • 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.
  • 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 https://eagleegg5k.com/ckfinder/triplebuserfiles/file/41214572462.pdf In PDF document text
    • https://www.hinkler.com.au/application/third_party/ckfinder/userfiles/files/lalexulited.pdfIn PDF document text
    • http://fteq.ru/files/file/bugixepadatoximod.pdfIn PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/25nvhf0ggro51dqkrm3qrl7045/61539115118.pdfIn PDF document text
    • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16137b7a3c144d---derera.pdfIn PDF document text
    • http://alde-pace.org/ckfinder/userfiles/files/14006497354.pdfIn PDF document text
    • https://elperrocallejero.info/ckfinder/files/42084881344.pdfIn PDF document text
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16132efc0f3032---vejiwozafukasak.pdfIn PDF document text
    • https://ijp2.com/contents/files/letikuk.pdfIn PDF document text
    • http://gediklimakinahidrolik.com/resimler/files/99907248660.pdfIn PDF document text
    • http://raegcafe.com/uploads/files/vumolufijusevameni.pdfIn PDF document text
    • http://citygclub.com/ckupload/files/39953767295.pdfIn PDF document text
    • https://istruttorecinofilo.it/userfiles/file/renesokebegoxoma.pdfIn PDF document text
    • http://sanmorales.es/userfiles/files/40809684031.pdfIn PDF document text
    • http://musik-fachberatung-neumarkt.de/images/uploadedimages/file/1569990690.pdfIn PDF document text
    • http://free-note.kr/files/fckeditor/file/1984293052613668ef263b8.pdfIn PDF document text
    • http://bn-biz.com/userData/board/file/pujodinajonudavujidur.pdfIn PDF document text
    • https://globalcareerclub.com/FCKeditor/userfiles/file/pixegosizis.pdfIn PDF document text
    • https://samarthanamparisara.org/apadmin/uploads/userfiles/files/rodalopipikozetim.pdfIn PDF document text
    • http://studiolegalebisantis.it/userfiles/files/jeziserajape.pdfIn PDF document text
    • https://fiscalonline.ro/app/webroot/files/userfiles/files/88898376167.pdfIn PDF document text
    • https://nevjegyzek.eu/uploads/file/75756950752.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=naruto+to+boruto+shinobi+striker+apk+ppssppPDF 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_off0000eead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEAD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000106bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106BF 18920 bytes
SHA-256: d42d38ed19ac2e3a83929d7e16f344b03634770bd6b7326709ce3fce96e7b8f1
font_02_sfnt_off00013866.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13866 10612 bytes
SHA-256: a004d7b22bea6b5e1067e0ed955edbbbcfdb35f0f8460c16ca72e3a98a4a8110

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