Malicious PDF — malware analysis report

Static analysis result for SHA-256 4456016252bfe16e…

MALICIOUS

PDF

69.1 KB Created: 2022-03-28 10:56:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 8cbe8d87d90f27b5e0cf2718be1529bb SHA-1: b4aebc00bc4f29abdca0a324416c1554840669be SHA-256: 4456016252bfe16ee36e3bab0abd803d29b4a8ca0f43f8def72578114dbf6a52
186 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The file contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO manipulation tactic. One of the primary links points to a Kenmore ice maker repair page, which may be a lure to disguise the malicious intent. The PDF structure itself does not contain executable scripts, but the extensive link farm indicates a high likelihood of redirecting users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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
  • 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.
  • 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://loheb.co.za/YmrXLWy8?keyword=kenmore%20795%20ice%20maker%20repair PDF link annotation
    • https://nudaduxovusupin.weebly.com/uploads/1/3/4/3/134337963/rolibubelizisare.pdfIn PDF document text
    • https://nutakofo.weebly.com/uploads/1/3/4/8/134894975/rotula.pdfIn PDF document text
    • https://samazixudoreput.weebly.com/uploads/1/3/2/6/132681586/4610124.pdfIn PDF document text
    • https://lebabipiw.weebly.com/uploads/1/3/0/9/130968925/9775302.pdfIn PDF document text
    • https://gunutusubev.weebly.com/uploads/1/3/1/4/131437775/9299580.pdfIn PDF document text
    • https://wazawuxara.weebly.com/uploads/1/3/4/7/134762715/e8492a0.pdfIn PDF document text
    • https://relewamomoj.weebly.com/uploads/1/3/4/3/134349818/biromerisuguxeboni.pdfIn PDF document text
    • https://lureriwoxefewu.weebly.com/uploads/1/3/4/5/134590368/zawomewixoge_remevipa.pdfIn PDF document text
    • https://wiloropijevor.weebly.com/uploads/1/3/5/2/135299547/texebajoxe.pdfIn PDF document text
    • https://ribapapa.weebly.com/uploads/1/3/4/4/134479292/2593458.pdfIn PDF document text
    • https://jabiwubebawa.weebly.com/uploads/1/3/4/3/134365468/titule.pdfIn PDF document text
    • https://lekinowi.weebly.com/uploads/1/3/4/4/134476644/xuzariv.pdfIn PDF document text
    • https://nanarimedut.weebly.com/uploads/1/3/2/6/132695535/tarakipalisez_zogovatepexuza_tavoma.pdfIn PDF document text
    • https://takaweso.weebly.com/uploads/1/3/2/3/132302848/7264956.pdfIn PDF document text
    • https://fawewetipe.weebly.com/uploads/1/3/1/3/131379545/6159353.pdfIn PDF document text
    • https://popepinasi.weebly.com/uploads/1/3/4/8/134892117/dejamuwonujisa.pdfIn PDF document text
    • https://jopekaraxawil.weebly.com/uploads/1/3/4/5/134589640/6900925.pdfIn PDF document text
    • https://gidepezugubuwo.weebly.com/uploads/1/3/4/7/134766768/nisofes_mosotowovuwar_xukun_noxesojoru.pdfIn PDF document text
    • https://nelajelax.weebly.com/uploads/1/3/2/7/132712676/nenuzesikobebiw_zutanimegodak_wepoveposemi_wonoxipu.pdfIn PDF document text
    • https://jixobufasov.weebly.com/uploads/1/3/4/3/134324480/zaboxiva_pesifekevew_zegotovijizep_garupeki.pdfIn PDF document text
    • https://walisisatar.weebly.com/uploads/1/3/4/5/134576301/abf0166.pdfIn PDF document text
    • https://rixapozati.weebly.com/uploads/1/3/4/4/134456921/fikumebutafa.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_off0000aece.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAECE 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000c56d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC56D 15896 bytes
SHA-256: 348a8c8fbd88baeffe04162ec6384371d631d079542974e4b62f26ebd68b36d6
font_02_sfnt_off0000ee60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE60 10660 bytes
SHA-256: 58634835177b5f8c7617c93b2056d6c3e38df2d4857496abac4a96ea32caf874