Malicious PDF — malware analysis report

Static analysis result for SHA-256 153e04e4b4024861…

MALICIOUS

PDF

65.3 KB Created: 2021-03-04 18:42:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8bf808d16ae34194021a8bb99cab9ab4 SHA-1: adf5ee3ab0c8b031d3547d9faa7b7a6ef62708a1 SHA-256: 153e04e4b4024861e90698120a2dac193c6b520e05e944d5cf449f5c92535df4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://gimoguvi.ru/award?keyword=pioneer+ddj+sx2+power+supply PDF link annotation
    • https://jaduxokapatusiw.weebly.com/uploads/1/3/5/3/135301375/mefalugojozi_zogejelefujide_dirabugoxupelu_kinibuvarezub.pdfIn PDF document text
    • https://kirorasonosa.weebly.com/uploads/1/3/4/7/134743937/552485.pdfIn PDF document text
    • https://puxajibixitukus.weebly.com/uploads/1/3/4/4/134457664/98e6ce552.pdfIn PDF document text
    • https://dapadode.weebly.com/uploads/1/3/4/6/134646205/vanugutupaponutuk.pdfIn PDF document text
    • https://dofigova.weebly.com/uploads/1/3/0/8/130813881/kenojezibinano.pdfIn PDF document text
    • https://gupesasuxubigu.weebly.com/uploads/1/3/4/7/134717911/jugosurorawek.pdfIn PDF document text
    • http://wide-mean.top/what_does_triangle_with_exclamation_point_mean_on_hp_printer1akzj.pdfIn PDF document text
    • http://shoop-fm.ru/coloring_pages_christmas_light_bulbsegmok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488822/normal_5fdab8b6cc802.pdfIn PDF document text
    • http://losmopaka.site/89076178085l59t.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418368/normal_5fdfa09bb8deb.pdfIn PDF document text
    • https://vinetiwufo.weebly.com/uploads/1/3/5/3/135305890/busimaludifixonef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a093497a-9cd6-481c-94f2-35bc06a85756/xivazezumosuzarapajosapux.pdfIn PDF document text
    • https://d6b7b3c7-8429-4d82-9d75-5d5d09e763cc.filesusr.com/ugd/a8c229_7321aeeb646443c883828e434082685a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2466549-2602-4719-8a8e-989ae1086971/duvutudubelepadebis.pdfIn PDF document text
    • https://8b83d164-5e56-46cc-b941-48f48810ddf3.filesusr.com/ugd/76ce43_2fd8aa0722b34a2d836df0ef81b8c331.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ef2c9b6-a14a-4867-940a-5393b91e8e93/91419949747.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c219.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC219 5216 bytes
SHA-256: c9063635b74d33672907af5554a11f65a0e460d7c79b3e6556f4d8d115388dc3
font_01_sfnt_off0000d409.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD409 10536 bytes
SHA-256: b141dc7847a321b86b0ceb4314d414fe4bbbcc3e0306e6ca83dc0d11509a50f7

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