Malicious PDF — malware analysis report

Static analysis result for SHA-256 da483e070473f9e1…

MALICIOUS

PDF

88.4 KB Created: 2021-06-27 19:22:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: f2ba8f3f49a936274b15d9454216f7e4 SHA-1: 0000d9707cb5b7998d537bb175bd5c301aba04d8 SHA-256: da483e070473f9e172b81b1f142802a9bb7b50b7149d0b508c5a66d8b71f7254
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for Pdf.Phishing.Trojan. The numerous embedded URLs point to a link farm strategy, likely intended to redirect users to phishing sites or download further malicious content. The use of compromised CMS upload directories for hosting these links is a common tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://garglob.ru/uplcv?utm_term=anglo+saxon+and+anglo+norman+period PDF link annotation
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cbf0d599952---lezemajurilanefijabiniw.pdfIn PDF document text
    • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160982a5b408d1---nefabuwisoxadi.pdfIn PDF document text
    • https://linhquan-group.com/upload/ck/files/vizuwomexedasu.pdfIn PDF document text
    • https://taxiporec.top/wp-content/plugins/super-forms/uploads/php/files/qf3q34jivs7jvfld8ufkougkpd/84172573369.pdfIn PDF document text
    • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160d252d8db401---33198415551.pdfIn PDF document text
    • https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/033dd3f5fd6cf565f6227c2a9a75c6ed/birizuruwibepirilagipupu.pdfIn PDF document text
    • http://waukeganeast1980.com/clients/877304/File/zugatudewiwu.pdfIn PDF document text
    • http://naturallabs.de/userfiles/file/panokegavugenopowisu.pdfIn PDF document text
    • http://bethtikvahevents.ca/clients/2/20/20a91c0cb94b02964b0d1c5d980f1596/File/xezonolikedijisagawe.pdfIn PDF document text
    • https://anmoul.com/userfiles/file/64603903644.pdfIn PDF document text
    • http://otvorene-srdce.sk/userfiles/file/kupodalazijaketedidu.pdfIn PDF document text
    • http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202105130546329170.pdfIn PDF document text
    • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/8e43a210fb43a9d6c4433bacdae6f9b3/kuxara.pdfIn PDF document text
    • http://xn--kprq5pvqklteonubj6c.tw/CKEdit/upload/files/somuletewubufimo.pdfIn PDF document text
    • http://niestachow.pl/data/aktualnosci_imgs/file/begupuwerunudezoreziz.pdfIn PDF document text
    • https://rlvanstory.com/wp-content/plugins/super-forms/uploads/php/files/09a461e6e09693957c496cc8039b4408/34705182207.pdfIn PDF document text
    • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8906c22293---86970458565.pdfIn PDF document text
    • https://hpsoft.shop/upload/files/jevenadeziduxonugetu.pdfIn PDF document text
    • http://kme-kme.cz/files/file/kedawiradusuje.pdfIn PDF document text
    • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/aaaa84f1b13f2892beebb3a2eca08085/razaxogitiw.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/j5i8bchie5q4tdl92md971l372/mulebej.pdfIn PDF document text
    • http://pogotowienaukowe.com/Upload/file/rofixofowisutufoputete.pdfIn PDF document text
    • https://www.lightingsolutionsinc.net/wp-content/plugins/super-forms/uploads/php/files/7a53d5fb7b32bb385f87eff6042e7a8b/32984455775.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_off0000f620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF620 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010e37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E37 10720 bytes
SHA-256: 13fcf6ea621ee304691d4ff02267fdf1a52ba643a029df988079b5d9777eaa2f
font_02_sfnt_off000126a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126A0 17924 bytes
SHA-256: 74653744776ababf1e19e517bc41f5076ed10dfbed145104d13191d6c54bf95a