Malicious PDF — malware analysis report

Static analysis result for SHA-256 71ed2f36ff22240c…

MALICIOUS

PDF

68.4 KB Created: 2021-02-25 13:04:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 178be66953618426157a369d3be4bfd7 SHA-1: 98ecbc66116f0e05a1efa4a22d145f85b41165bb SHA-256: 71ed2f36ff22240cf5a336aee6c323194c30ac1c111336027ddf8a783cefed9b
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://seumenha.ru/award?keyword=share+jesus+without+fear PDF link annotation
    • https://xisofapetuv.weebly.com/uploads/1/3/4/7/134747578/5583502.pdfIn PDF document text
    • https://zideloxilatomi.weebly.com/uploads/1/3/5/3/135325243/7686634.pdfIn PDF document text
    • http://gepexoliv.medianewsonline.com/what_will_cause_a_washing_machine_not_to_spin.pdfIn PDF document text
    • http://repovor.22web.org/97340052692.pdfIn PDF document text
    • https://xitirume.weebly.com/uploads/1/3/4/3/134392652/vikojilizotite-sosetote.pdfIn PDF document text
    • https://tobejisexin.weebly.com/uploads/1/3/1/4/131454505/fokes.pdfIn PDF document text
    • https://dirotigakavomak.weebly.com/uploads/1/3/4/2/134235834/7f92db320b.pdfIn PDF document text
    • https://baputopozim.weebly.com/uploads/1/3/5/3/135336161/5109a976cce216.pdfIn PDF document text
    • https://ranetaxute.weebly.com/uploads/1/3/4/8/134886021/miwufa-gujidu.pdfIn PDF document text
    • https://nusubilumib.weebly.com/uploads/1/3/5/3/135347333/patedubut.pdfIn PDF document text
    • https://xivanolub.weebly.com/uploads/1/3/1/3/131380121/6245537.pdfIn PDF document text
    • http://pemufosapakem.mypressonline.com/organic_chemistry_class_12.pdfIn PDF document text
    • https://foluxafan.weebly.com/uploads/1/3/5/3/135397430/46b61221d4729.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nifukugobu.rf.gd/79610097726.pdfIn PDF document text
    • http://puteruwegadijem.epizy.com/firebugopuloperaketej.pdfIn PDF document text
    • http://bavajozobe.epizy.com/guerrero_de_oracion_stormie_omartian.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_off0000ceed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEED 5092 bytes
SHA-256: e651b84f4630c6f39057dc42fdf4b9cd14940938024964b953dfe6b6dcbc9d8f
font_01_sfnt_off0000e046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE046 10704 bytes
SHA-256: 0f4826a73445600e5fa20303039b7c259436fd8077cf0bb94a995913865b53a9