Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a033d3ea4690c7d…

MALICIOUS

PDF

81.6 KB Created: 2021-09-07 19:43:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: edbb5edac57353d4fe13a843916e73f1 SHA-1: 70f24d65e306903e96675798e77dd99fe5ea7969 SHA-256: 9a033d3ea4690c7d9908de2e94ed19caa692222ad2aee16a2cdc4449b9585c38
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and the overall structure indicate an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

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 https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/6815007afa16444427dff3dcde0000f5/lisaruzoro.pdf In PDF document text
    • http://dulwichtaxi.com/survey/userfiles/files/jotumibak.pdfIn PDF document text
    • http://danguykhoidoanhnghiephp.vn/Upload/files/zipesodutobikomunotinaw.pdfIn PDF document text
    • https://muzeumkonstancina.pl/attachments/file/jepexome.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608be5db01862---17171452442.pdfIn PDF document text
    • http://bcbc3399.com/upload/files/71557647907.pdfIn PDF document text
    • http://szakkepzosiklos.hu/upload/file/tigajigukuvotetexu.pdfIn PDF document text
    • http://losmarinoslanzarote.com/marinarubicon/admin/file/55310398896.pdfIn PDF document text
    • https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/9f6fab6910b64fd2de04be6c4ca537a0/vumotemabavijozaxumuvizuw.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160d7e7676495a---texajikibe.pdfIn PDF document text
    • https://www.smartfutureexpo.com/ckfinder/userfiles/files/milililujizowoxile.pdfIn PDF document text
    • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1611118233c598---46317089188.pdfIn PDF document text
    • http://dalaichau.com/files/worabifemero.pdfIn PDF document text
    • http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a837ac773e8---tekup.pdfIn PDF document text
    • http://drstevealbrecht.com/wp-content/plugins/super-forms/uploads/php/files/7d583ffde16ea2ec6e68d1cb0afde866/6116510968.pdfIn PDF document text
    • http://www.awakohchang.com/image/upload/File/aduw.pdfIn PDF document text
    • http://leeclinic.kr/userData/board/file/xanin.pdfIn PDF document text
    • https://sgotomotiv.org/upload/files/sepupiloxuje.pdfIn PDF document text
    • https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/ul2clojbfmi82723als267m6gl/wopotewufumetog.pdfIn PDF document text
    • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608262755b8d5---wupabamekepafanotedo.pdfIn PDF document text
    • http://smcertificationservices.com/userfiles/files/losaledadud.pdfIn PDF document text
    • http://vonschickenconcord.com/uploads/files/48543484018.pdfIn PDF document text
    • https://siemreaptraveltours.com/userfiles/file/fobuxekoni.pdfIn PDF document text
    • https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/160abe55b4255c---17708944329.pdfIn PDF document text
    • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b954f4679e6---62779108510.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=lg+k8+v+user+manualPDF 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_off0000dd20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD20 10564 bytes
SHA-256: 46bbd3cd58c99816a12eb1b93519d88af754b6d20a157633d77d707b189b49ea
font_01_sfnt_off0000f544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF544 17040 bytes
SHA-256: e34e889187f027d020a1c4698315a7fb5afc64bf43564ab2281e9a8697b2f05c
font_02_sfnt_off00012169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12169 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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