Malicious PDF — malware analysis report

Static analysis result for SHA-256 793c2a5adea7ce93…

MALICIOUS

PDF

277.1 KB Created: 2022-04-02 13:49:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 4c438176928a8656810abf68aa9f039b SHA-1: 304e1b132b7fa4bae5c6a714abd0fe63f3fe2f20 SHA-256: 793c2a5adea7ce9305f69ce4432e9a26a41f09c25faa718196ee392dd878d4f5
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains embedded JavaScript and external URIs, indicating it is designed to lure users into downloading further malicious content. The heuristic 'PDF_SEO_UTM_REDIRECTOR_LINK' specifically points to a phishing attempt using a free-download lure. The embedded JavaScript, while not fully detailed, is a common method for initiating malicious actions within PDF documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6858

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://yubit.co.za/XSRYdR1H?utm_term=virtual+dj+8+crack+para+controladores PDF link annotation
    • https://jiwedizuku.weebly.com/uploads/1/3/4/3/134310564/334006045833.pdfIn PDF document text
    • https://gurelupukuji.weebly.com/uploads/1/3/0/7/130775622/1662412.pdfIn PDF document text
    • https://dakopubelodeb.weebly.com/uploads/1/3/0/7/130775015/nanuxijimewabusigu.pdfIn PDF document text
    • https://sevimuxeso.weebly.com/uploads/1/3/0/7/130739978/tupubarepoza.pdfIn PDF document text
    • https://sizadefo.weebly.com/uploads/1/3/4/3/134381744/pagalaxu.pdfIn PDF document text
    • https://rusokakes.weebly.com/uploads/1/3/4/0/134016884/7640173.pdfIn PDF document text
    • https://pasudavekeri.weebly.com/uploads/1/3/1/4/131437626/7283998.pdfIn PDF document text
    • https://www.tiad-mtm.com/assets/admin/js/plugins/kcfinder/upload/files/41422986300.pdfIn PDF document text
    • https://www.smilinghorseranch.cz/domains/smilinghorseranch.cz/public/js/kcfinder/upload/files/75501044591.pdfIn PDF document text
    • http://sunnyten.net/userData/board/file/40465832786.pdfIn PDF document text
    • http://drapa-technika.cz/UserFiles/File/67209208204.pdfIn PDF document text
    • https://lazidejapagopi.weebly.com/uploads/1/3/4/8/134891766/soxekolosidizawa.pdfIn PDF document text
    • https://bimebupeku.weebly.com/uploads/1/3/4/7/134715010/78c58118f300.pdfIn PDF document text
    • https://nixixowazexifaf.weebly.com/uploads/1/3/7/5/137516650/gopoxot_rejodaninetave_kulavekagasozed.pdfIn PDF document text
    • http://galsabino.it/userfiles/files/kenafagupevomirulivat.pdfIn PDF document text
    • https://pristineleather.com/userfiles/file/novujefatef.pdfIn PDF document text
    • https://wapolamezabez.weebly.com/uploads/1/3/4/0/134041225/8254051.pdfIn PDF document text
    • https://galinigogazefu.weebly.com/uploads/1/3/2/6/132695851/xusifiwedo.pdfIn PDF document text
    • https://gojinatunipow.weebly.com/uploads/1/3/4/5/134582877/numidovafunu_miwefobi_fafuzadogemal.pdfIn PDF document text
    • https://wobumobovutukom.weebly.com/uploads/1/3/1/6/131606412/daxufikirawoko.pdfIn PDF document text
    • https://hladiagnostico.com.br/kcfinder/upload/files/86789192804.pdfIn PDF document text
    • https://wepotupibir.weebly.com/uploads/1/3/4/8/134881259/piguxovoz.pdfIn PDF document text
    • http://draftingfloorplan.com/ckfinder/userfiles/files/38487083373.pdfIn PDF document text
    • http://phongthuyphatloc.com/luutru/files/64528327500.pdfIn PDF document text
    • https://vasukopedu.weebly.com/uploads/1/3/4/7/134709477/rupokazakebawowobag.pdfIn PDF document text
    • https://wofibenozoga.weebly.com/uploads/1/3/5/3/135321696/lovewivatepov.pdfIn PDF document text
    • https://lodovanu.weebly.com/uploads/1/3/4/4/134403978/95d86da0.pdfIn PDF document text
    • http://galaxyjewel.cn/uploadfile/files/44994729631.pdfIn PDF document text
    • https://lorrainezammit.com/files/file/xufalejisovibewamijuk.pdfIn PDF document text
    • https://benarejara.weebly.com/uploads/1/3/1/4/131407695/3cfef.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003c377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C377 11004 bytes
SHA-256: 6e4f3be1ffa94d1a715883cad7b9272d0d906dbe7a170d66a0e8bde5412b5601
font_01_sfnt_off0003dd29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DD29 16148 bytes
SHA-256: b17e3c388ca520c70044df51a505a8c8de3d1ca9b2e495c629779bc8d31aca59
font_02_sfnt_off0003f2b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F2B8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off00040aca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40ACA 22468 bytes
SHA-256: 22ba6fd3dad7b7ba3cee301786aca92da5a54281eadf5aaa5506d4f4f73c2b79