Malicious PDF — malware analysis report

Static analysis result for SHA-256 191bc00c62202cc2…

MALICIOUS

PDF

86.2 KB Created: 2022-04-22 12:35:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 7f860d442062aba35bdf24012cfac759 SHA-1: 7ee653bd93eb0be0f7f0c87166da5b5bb8d071e1 SHA-256: 191bc00c62202cc2a50481aea00f79a102489d7cd4c0b3ac2bf12dd82661bf54
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://colod.co.za/YmrXLWy8?keyword=so%E1%BA%A1n%20ng%E1%BB%AF%20v%C4%83n%20l%E1%BB%9Bp%209%20truy%E1%BB%87n%20ki%E1%BB%81u%20c%E1%BB%A7a%20nguy%E1%BB%85n%20du PDF link annotation
    • https://bijoxopibomer.weebly.com/uploads/1/3/4/3/134325560/3844386.pdfIn PDF document text
    • https://vavefobolaw.weebly.com/uploads/1/4/1/3/141351823/giguvepoxomixav.pdfIn PDF document text
    • https://terusabul.weebly.com/uploads/1/3/4/7/134702655/zoxuxatozit-begadotuli.pdfIn PDF document text
    • https://mufipegiko.weebly.com/uploads/1/4/1/3/141305374/9d50352777.pdfIn PDF document text
    • http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1625845396f56f---7790628800.pdfIn PDF document text
    • https://lekokazumij.weebly.com/uploads/1/4/1/2/141291362/xodefadip.pdfIn PDF document text
    • https://wimowago.weebly.com/uploads/1/3/0/7/130775393/522a91bc51ad3f.pdfIn PDF document text
    • https://pogugabumivo.weebly.com/uploads/1/3/1/3/131381840/dorebukuzevimozu.pdfIn PDF document text
    • http://pro-elec.ru/ckfinder/userfiles/files/kijuniva.pdfIn PDF document text
    • https://zerakilun.weebly.com/uploads/1/3/2/6/132695460/03fba2c2.pdfIn PDF document text
    • https://burlingame.com/wysiwygfiles/file/44007301820.pdfIn PDF document text
    • http://cuacuonnhaxuongbinhduong.com/upload/files/xaboberanalazodome.pdfIn PDF document text
    • https://simorgh.it/uploads/file/velor.pdfIn PDF document text
    • https://zuwasaroniw.weebly.com/uploads/1/3/1/3/131380739/pezuworuverojutivizu.pdfIn PDF document text
    • https://nesiwebe.weebly.com/uploads/1/3/5/3/135399888/532e45a652478.pdfIn PDF document text
    • https://dutajidadu.weebly.com/uploads/1/3/4/7/134730474/radelup_rojujize_zivuxo_muxijovedasovuk.pdfIn PDF document text
    • https://nevajuto.weebly.com/uploads/1/3/2/6/132695651/b5231.pdfIn PDF document text
    • http://immat.org.tr/kcfinder/upload/files/73308876137.pdfIn PDF document text
    • https://labopepiw.weebly.com/uploads/1/3/4/7/134747507/bujojepatugadob-wesewadabutevo-norebidivixe-lekaboke.pdfIn PDF document text
    • http://keifo.ru/ckfinder/userfiles/files/bibimuwolelapovasofe.pdfIn PDF document text
    • https://xumokiregiw.weebly.com/uploads/1/3/4/2/134266049/nubofi.pdfIn PDF document text
    • http://www.amoroso-ongakuin.com/upload/files/951365450.pdfIn PDF document text
    • https://rupilobeva.weebly.com/uploads/1/3/0/7/130775598/7905836.pdfIn PDF document text
    • http://reklamnizbozi.cz/data/upload/files/vewarananazodejisim.pdfIn PDF document text
    • http://botan-koubou.com/js/kcfinder/upload/files/68152605080.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_off0000d925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD925 12752 bytes
SHA-256: 0744348a47a5f0514e01b526497f73bdb7f47acd5f74493d0be1ecb20720efe3
font_01_sfnt_off0000f62d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF62D 29140 bytes
SHA-256: 917a807657620204afe89e0045f0867aa3d643f3eea7de7dbdb0935712aa0ca7
font_02_sfnt_off00013000.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13000 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1