Malicious PDF — malware analysis report

Static analysis result for SHA-256 2af04cc5cffedad5…

MALICIOUS

PDF

89.8 KB Created: 2021-07-02 21:38:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 0a7bdf18cf026655b00920a1fe067e9c SHA-1: 0cb9f3198130363a9bf9133d0254cb990ecc69db SHA-256: 2af04cc5cffedad579a1d63e4284d8c0a1ed6c3561e0438ea597eb0147151971
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs that point to compromised WordPress sites and other disposable hosting. These links likely lead to further malicious content or phishing pages, aiming to exploit users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://synerhu.ru/uplcv?utm_term=live+football+games+free PDF link annotation
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088d3d543209---tobivoroxovisaxafalidek.pdfIn PDF document text
    • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/kgdqd0ol2rv49u9ctpsif0jdfl/50492031729.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607781c904db0---14694177231.pdfIn PDF document text
    • http://macap.nl/app/webroot/files/userfiles/files/vogadusok.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/1mn0cl50f6857vhf8lrjk4shdo/vomilidawidezab.pdfIn PDF document text
    • http://paillasse.hu/userfiles/file/sudaxuju.pdfIn PDF document text
    • https://communeouchamps.fr/userfiles/file/korobukuzodobiwolosep.pdfIn PDF document text
    • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609a807eb4eb9---pezoropavogodimafipagok.pdfIn PDF document text
    • http://castrolmintabolt.hu/images/upload/file/20413146350.pdfIn PDF document text
    • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdc20e479e0---55602033738.pdfIn PDF document text
    • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/c2v650nsqbjk93a141e60p3p6h/81817528761.pdfIn PDF document text
    • http://princeworldwide.com/multimedia/userfiles/file/palifetikamopigejexezeru.pdfIn PDF document text
    • https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099be69c7b45---savajuzezorovovogenarud.pdfIn PDF document text
    • http://norilskgu.ru/userfiles/file/medapenazugekes.pdfIn PDF document text
    • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0e8e6ff1e---24148771296.pdfIn PDF document text
    • https://aslimitada.com/userfiles/file/3627364380.pdfIn PDF document text
    • https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/547af257ba54b85c62d11111ae1a6039/9533734305.pdfIn PDF document text
    • https://myphi.biz/nbloom/fckuploads/file/liguk.pdfIn PDF document text
    • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/f4c255bsb4l1f1ep9d532b1b79/69473310045.pdfIn PDF document text
    • http://innovad-ltd.com/userfiles/file/diramu.pdfIn PDF document text
    • https://zanhotel.ro/beficientconsultingFiles/file/vetofibozax.pdfIn PDF document text
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/3f972efa80f961a11afb18afbaec796e/rotuxapedogi.pdfIn PDF document text
    • https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/160aa908476c51---11946696225.pdfIn PDF document text
    • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/33bfaf41f844d831c97dbfe54572c995/dipasubu.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_off0000f865.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF865 10616 bytes
SHA-256: b1c8d04a1b9c1e914f51ea9f5cbb7e45513bc9e89281aa863bc87acef620063b
font_01_sfnt_off000110b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110B6 19164 bytes
SHA-256: 88fb4e7aeb44fdb475a5a4a2b5c893229b80a33ba46f93108467207885a01765
font_02_sfnt_off000141b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x141B1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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