Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dee2d3183de98bd…

MALICIOUS

PDF

83.9 KB Created: 2021-09-05 22:12:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 9c5e67a4b7498c950da4aeccd3620c78 SHA-1: 0f234ff0a62ae70e0b07457af88e63bf08a875e6 SHA-256: 9dee2d3183de98bdd48bf67914186d137f618b537dbe1aba3d23ff38b2da758e
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which appear to be part of a link farm designed to manipulate search engine results or distribute malware. The presence of these links suggests the document's primary purpose is to redirect users to potentially harmful sites, likely for phishing or to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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
  • 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.
  • 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://archism.ru/uplcv?utm_term=motor+vikatan+magazine+pdf+free+download PDF link annotation
    • http://ebanksunited.com/clients/7/7d/7da19d52c1086e69e61582739ce98a0f/File/fidedirobidozibowe.pdfIn PDF document text
    • http://gianphoiduyloimodel.com/Images_upload/files/83743771385.pdfIn PDF document text
    • http://daedukgs.com/admin/fckeditor/data/file/20210710172345.pdfIn PDF document text
    • https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/1607b13177ef88---73138798330.pdfIn PDF document text
    • http://murphysbeads.com/clients/54316/File/22214939501.pdfIn PDF document text
    • https://riolospettacoli.it/filesUploads/file/mukatazosuzuxolegapef.pdfIn PDF document text
    • https://dichvumayphoto.vn/webroot/img/files/naxefire.pdfIn PDF document text
    • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/1984afa8f84bf008ea1deb0dddbbc70a/91546052411.pdfIn PDF document text
    • http://dogable.de/userfiles/file/61955383588.pdfIn PDF document text
    • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b18e2de262d---doxugiloridif.pdfIn PDF document text
    • http://trungtamdaykem.vn/Images_upload/files/ruwusapokowugetesaxuvem.pdfIn PDF document text
    • http://paroissedementon.fr/upload/files/gesixogu.pdfIn PDF document text
    • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160784e503ea8f---woxuzu.pdfIn PDF document text
    • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/d0d80634907459560eceb5cc3170323c/28674802485.pdfIn PDF document text
    • https://ever-progress.com/upload/files/wafoxiv.pdfIn PDF document text
    • http://homenet-spb.ru/userfiles/file/70557094583.pdfIn PDF document text
    • https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/s56rbevng1j1rb2226fj9464k7/negeka.pdfIn PDF document text
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/565c766aff5d51ae4143005709554810/wuvizuvixusejuwinikige.pdfIn PDF document text
    • http://thainightjob.com/ckfinder/userfiles/files/nobilelefupokodigep.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/161093cf87fa8b---mugomijizugotunosoral.pdfIn PDF document text
    • http://bhk-aindling.com/userfiles/files/gagidusator.pdfIn PDF document text
    • https://bodegoncriollo.com/userfiles/file/norolemisasosesubito.pdfIn PDF document text
    • http://remaining-mc.de/userfiles/file/joziwiwinilasuxodi.pdfIn PDF document text
    • https://sonerofset.com/userfiles/file/josatazirajevajukerugera.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_off0000de7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE7B 10972 bytes
SHA-256: 42fd0be74a69044e8c4b388c9a58c7af6e2f21853c001b837f4052f98981ab91
font_01_sfnt_off0000f7d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FE4 18832 bytes
SHA-256: f20ce0a62a46ce593d50dc61067f17466d10105776384973c67f3ea6706ef1c4

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