Malicious PDF — malware analysis report

Static analysis result for SHA-256 774da1f3969cb50e…

MALICIOUS

PDF

69.2 KB Created: 2021-02-25 22:01:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5e70ce69dd2f370db3f6bb47bc7c9ce5 SHA-1: c48a011a1580530a7af4b08ef7b04aed0d986301 SHA-256: 774da1f3969cb50e0872b28d0a9eea57088ccc8baf50492cc24529512491efc3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://druttle.ru/award?keyword=geometrical+formulas+of+maths PDF link annotation
    • http://lightly.store/yahoo_messenger_old_version_for_androids5oeo.pdfIn PDF document text
    • https://fozabezadako.weebly.com/uploads/1/3/4/6/134639332/238143.pdfIn PDF document text
    • https://menufaron.weebly.com/uploads/1/3/0/7/130775522/rejawutalogatizerizu.pdfIn PDF document text
    • https://zupevinar.weebly.com/uploads/1/3/0/7/130739631/rijexisiwen.pdfIn PDF document text
    • http://juwupexutaval.mywebcommunity.org/97875373608.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367645/normal_603161349d949.pdfIn PDF document text
    • http://plsale.pro/xtz_750_super_tenere_manual7wtxj.pdfIn PDF document text
    • https://ponivigaxuk.weebly.com/uploads/1/3/5/3/135313456/5697065.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412900/normal_600d03820dfe3.pdfIn PDF document text
    • http://bosemefawixuwov.mypressonline.com/gejuvopujijijedifurug.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477635/normal_5fccc0a81e55d.pdfIn PDF document text
    • http://all-host.site/fapopapugolojijewusprvd6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369496/normal_5fecfbcad27b1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/gakezapitopedixogolawes.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/flyer_template_free.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_off0000c969.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC969 5152 bytes
SHA-256: 855b1a08c009f7a2fa2c2c6797f1bdeeed990f4ee983bcceb274f1fc1bc029ff
font_01_sfnt_off0000dac4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAC4 14208 bytes
SHA-256: 1f379f5dc064fbe3186cb0142da2a25dfdc4ff3011f6249b728675a5db4eb876