Malicious PDF — malware analysis report

Static analysis result for SHA-256 06fd895dc89dcc95…

MALICIOUS

PDF

80.3 KB Created: 2021-07-25 13:02:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 6062ebe182bbe9b6153eced91fba2ecd SHA-1: b954f32c06b6f33bdccd1857eae3e03733d9199e SHA-256: 06fd895dc89dcc9525477223f4a3a41ea9dd8de1b42ddd43c4910564b54e841e
156 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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
  • 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 http://mosvag.ru/img/lib/file/xinodeju.pdf In PDF document text
    • http://canvangdientu.com/images/file/52217086280.pdfIn PDF document text
    • http://etabetasurvey.com/userfiles/files/19591591267.pdfIn PDF document text
    • http://porpora.eu/imagenes/imagenes_contenidos///lozozisujuxuxuxinin.pdfIn PDF document text
    • https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/d237d98d00f10272ffd51538eaf14fa8/87682054274.pdfIn PDF document text
    • https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/s42dvu5k4be31h0inposvhel6u/74508330887.pdfIn PDF document text
    • http://polymer-optix.de/userfiles/file/pamugobofebokewiwe.pdfIn PDF document text
    • https://elitstroycraft.ru/source/file/guwowuxafob.pdfIn PDF document text
    • https://mandarinusa.com/userfiles/file/1626562005.pdfIn PDF document text
    • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160737342741fd---misuwivetonefibugezasopaz.pdfIn PDF document text
    • http://clarkhigh72.com/clients/3/34/34275c7d49a174b5f6cf03bf5966da6c/File/nitos.pdfIn PDF document text
    • https://www.propertyfilevault.com/wp-content/plugins/super-forms/uploads/php/files/71e69c5d25f38dff623746a69506e2a0/67013125402.pdfIn PDF document text
    • https://actorconseil.com/files/file/wufujakebulo.pdfIn PDF document text
    • https://seerupit.dk/assens/file/37220037387.pdfIn PDF document text
    • https://www.perfumista.co.uk/wp-content/plugins/super-forms/uploads/php/files/afe439d1776119241d2d368572f20070/50478880554.pdfIn PDF document text
    • http://hyperasp.net/userfiles/file/leriv.pdfIn PDF document text
    • https://visionbrindes.com/admin/fckeditor/userfiles/file/vexekoru.pdfIn PDF document text
    • http://group-anons.ru/userfiles/files/pikikeginoluwijezego.pdfIn PDF document text
    • https://sentinels.ro/userfiles/file/80109487231.pdfIn PDF document text
    • http://meijialx.com/ckfinder/userfiles/files/mozamipiwegixubuvepexu.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/f2e9975d02d6ccc0c193f433da0cb950/44243756086.pdfIn PDF document text
    • https://arnetbilgisayar.com/upload/ckfinder/files/peligokunetila.pdfIn PDF document text
    • http://urduhadith.org/survey/userfiles/files/58833948298.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/0a53903e5ce57173472617dc0eb0e1ed/67545322258.pdfIn PDF document text
    • http://stardentalcare.org/userfiles/file/tosawaxenexisezisavotevim.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/2f0ebedd56c038b0cda3db17e8ec2900/tevalewewopu.pdfIn PDF document text
    • https://prospr.fr/ckfinder/userfiles/files/zazuparanaveni.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=how+can+i+fix+the+tension+on+my+sewing+machinePDF 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_off0000d6a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6A9 10932 bytes
SHA-256: 85909593f8bed12bf0e7ad3c07a0df038e5c6cecf0b0759943514e32c9bc48e2
font_01_sfnt_off0000efde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFDE 15940 bytes
SHA-256: e9c53a884d6cd3740521e7ef6adffbc77b838815595b5efc0eac8cfbe460dba3
font_02_sfnt_off000118d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118D3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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