Malicious PDF — malware analysis report

Static analysis result for SHA-256 191b5f6d0976c850…

MALICIOUS

PDF

77.2 KB Created: 2022-04-05 21:47:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 670f92011f65fb854fb3ac05873961f7 SHA-1: 9ae9c8822c9f0af61ca4847d0af67eba7aada343 SHA-256: 191b5f6d0976c85096fa6d3e09a89fb695f5675ea62bf58422f919aeaece5ec9
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://sunuf.co.za/YmrXLWy8?keyword=high%20standard%20derringer%20serial%20numbers PDF link annotation
    • https://michalheger.cz/soubory/files/voxunakij.pdfIn PDF document text
    • https://gelavunojojudon.weebly.com/uploads/1/3/5/3/135390257/a543439e9f.pdfIn PDF document text
    • https://ganubosi.weebly.com/uploads/1/3/4/5/134506756/gesoxetubudu_dipubumiwuroxa.pdfIn PDF document text
    • https://kexejimeso.weebly.com/uploads/1/3/4/0/134096016/mulamenisezodoxegado.pdfIn PDF document text
    • http://undergroundspitters.nl/kcfinder/upload/files/19524555093.pdfIn PDF document text
    • https://fejalunaruxepiv.weebly.com/uploads/1/3/4/4/134489653/8f300625.pdfIn PDF document text
    • https://rudutedofed.weebly.com/uploads/1/3/7/5/137515313/4114739.pdfIn PDF document text
    • https://dodesurazuxosa.weebly.com/uploads/1/3/4/3/134382101/701420.pdfIn PDF document text
    • https://mimoberojatef.weebly.com/uploads/1/3/4/3/134316463/wofakaput.pdfIn PDF document text
    • https://banukusisazej.weebly.com/uploads/1/3/4/8/134893357/4965424.pdfIn PDF document text
    • https://pakumage.weebly.com/uploads/1/3/4/8/134890232/lipuzajizi_kotevukanel_jitosuvutol_bikase.pdfIn PDF document text
    • https://lekaretuzej.weebly.com/uploads/1/3/0/7/130738752/jabidobakaza_kototoziku_vixovosudokamig_xamuv.pdfIn PDF document text
    • http://np-laser.com/upload_fck/file/2022-3-9/20220309012226913486.pdfIn PDF document text
    • https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/q8k4e4ov4kpu1i84tc3qj7v2b7/didomuwajutoberilusov.pdfIn PDF document text
    • https://zuzesewijolane.weebly.com/uploads/1/3/1/4/131406438/18b27318.pdfIn PDF document text
    • https://wawumojobov.weebly.com/uploads/1/3/5/3/135323155/6463829.pdfIn PDF document text
    • https://www.carnesvarejo.com.br/assets/ckfinder/core/connector/php/uploads/files/zowufokisagut.pdfIn PDF document text
    • http://gzbaosui.com/uploadfile/files/14746627900.pdfIn PDF document text
    • https://zewiloda.weebly.com/uploads/1/3/4/6/134655603/47b0ca246f.pdfIn PDF document text
    • https://sporyolu.com/resimler/files/lezakejozovum.pdfIn PDF document text
    • https://zojusuvog.weebly.com/uploads/1/3/4/7/134762677/fukufusog.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_off0000c924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC924 10804 bytes
SHA-256: 30e45694c96f924b606226efac4f0f06bdba871e9de2595bd82de5479689b8b1
font_01_sfnt_off0000e18f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE18F 17284 bytes
SHA-256: 733d9730eaa6ca939ea3fd37b9e2ec5e6ded1b9c9210b63e034d2bb58d688622
font_02_sfnt_off00010f21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F21 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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