Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c0d33c8e4dc7e5a…

MALICIOUS

PDF

86.6 KB Created: 2021-07-12 16:08:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 07cd899e64698723917aa5bb96d12e67 SHA-1: 379c5257fd05c29c860d95af98f0f11318ab409a SHA-256: 2c0d33c8e4dc7e5acfee29e3e3527300a50957c858a69d29709f5f4bef7c5695
156 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a deliberate attempt to create a network of links for potentially malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://electrabicycles.pl/app/webroot/uploads/file/16216658710497.pdf
    • https://chp-travel.ir/data/file/teponuvojamogopo.pdf
    • http://dogable.de/userfiles/file/4322205978.pdf
    • http://goldenpeak.it/userfiles/files/xanolexadexe.pdf
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/160900f753be00---77591640390.pdf
    • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/45454dd6eb883ce267bbfb355bb885b7/25603769396.pdf
    • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160850fff60a89---baxakam.pdf
    • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/suheo0s22ecnmm4i2edb8bieu6/zutija.pdf
    • https://www.kasekimi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073ac139a3cb---kovagifijezax.pdf
    • http://abacusnancy.com/userfiles/file/bovunogofofofezutebi.pdf
    • https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/beb64ce4853705342e86344e49582224/benitixuzuzu.pdf
    • http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c952af8b188---sibowakebekidokiroteluguk.pdf
    • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce89b6825f---jakivafesufe.pdf
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/41mfn5r7t1n81hqpvttdpv7uih/dunutuzejupobezutuxugora.pdf
    • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082e53f74a9b---feduwoxinujaxepilonusi.pdf
    • http://bmcnx.com/userfiles/file/38493469028.pdf
    • http://fouladsazanco.com/Upload/file/18527718139.pdf
    • http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/b2bc3c03c24ab9635de50c6502c14058/lulubevaxibemolonavupu.pdf
    • https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/fa228021266e817780e7ec4637d2e6b4/65635613104.pdf
    • http://yorktownhs1987.com/clients/57482/File/4294708660.pdf
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1607941c86d28d---49375104149.pdf
    • https://biocoils.com/img/file/28850252091.pdf
    • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/384u1fa008rbfq97eb0v9rih43/21662685500.pdf
    • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1608ada9182782---57528375478.pdf
    • http://opalsolar.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16083b8f3eef47---62984512807.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=pulled+adductor+muscle+symptoms
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee28.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE28 16792 bytes
font_01_sfnt_off0001063f.bin
7c491b1f53e40465011dd0bb9e602e76b118054e636624ac1fbf704fc02a195d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1063F 10696 bytes
font_02_sfnt_off00011ee6.bin
3b03db4e786b33a1e0c90c2bbc031840c77b5ea740f7dc111e2529cd4e652a08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11EE6 16972 bytes

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