Malicious PDF — malware analysis report

Static analysis result for SHA-256 561294121e3af5b0…

MALICIOUS

PDF

102.9 KB Created: 2021-06-29 06:38:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: a0283fa8a6e49fe266bb660eca5032ca SHA-1: 3ea8d4e1744b6d5a695f973bca3d492e6cf85f74 SHA-256: 561294121e3af5b03180a310fce983357d623bbe2fb6d30c9402a8135b06f4d9
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as a malicious PDF by ClamAV and an ML classifier. It contains numerous external links, many pointing to compromised CMS upload storage, suggesting a phishing or malware distribution lure. The PDF structure and embedded links indicate an attempt to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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://drafthe.ru/uplcv?utm_term=pitch+deck+presentation+template+free+download PDF link annotation
    • https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/d88cp6fh017ledv85vldf532t9/74072865151.pdfIn PDF document text
    • https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/c43f30f493c4edc5eaf66f7de811ed1e/74094952173.pdfIn PDF document text
    • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d4f4b36139f---60772996244.pdfIn PDF document text
    • https://aravlicraft.com/cmsCart//upload/file/40647721674.pdfIn PDF document text
    • http://azizolace.cz/images/file/nuxezevulotavimopelibitem.pdfIn PDF document text
    • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/cc1863c801d17f7ed405a5845bfa5a09/jagazefisabenizazujato.pdfIn PDF document text
    • http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a3c32c9eaa6---xogezovejozegujim.pdfIn PDF document text
    • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/dmnhqus4oo8vsmh6naefe8mh37/61481282135.pdfIn PDF document text
    • https://canionglobal.com/FCKeditor/file/27523319289.pdfIn PDF document text
    • https://silga.ca/userfiles/file/xidisugem.pdfIn PDF document text
    • https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/tv7pon3r52oiogohkie57pdm60/53667681399.pdfIn PDF document text
    • https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/o02v541cjaeub7pef935rcggr7/zagomarodelerijogujonilid.pdfIn PDF document text
    • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d65e7f5303d---pelubebebujelurikiwewo.pdfIn PDF document text
    • http://surrattsville69.com/clients/8/81/8122276c22396d7fa0996010cc369f50/File/68627390854.pdfIn PDF document text
    • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c25d0220e3d---punovenu.pdfIn PDF document text
    • https://majubesar.info/contents//files/doxolakaz.pdfIn PDF document text
    • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/8af7c6a8fc6b666eb5da42df27b33cac/duperaxaguxisulifivivo.pdfIn PDF document text
    • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/c0cfa7d784ab15a3b16a7218b6deff15/lepakajukuxogif.pdfIn PDF document text
    • https://lightsourceindiana.com/wp-content/plugins/super-forms/uploads/php/files/50a55a53da5c49f7e213206af26506f7/24261615819.pdfIn PDF document text
    • http://plastikacz.cz/soubory/files/42191236546.pdfIn PDF document text
    • https://et-auditing.com/userfiles/files/ridadabilikitedajivafod.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012f0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F0F 17316 bytes
SHA-256: 16eeaeb2dc79ca3275eb99d9db4cd9d6088d603d3d18fb9d427f6ca43010581a
font_01_sfnt_off00015c97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15C97 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000174ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x174AE 11064 bytes
SHA-256: 1bfcae42b4de44d2548756ec5bb8ecad8b1d43b798827fe411027b45602e0239

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