Malicious PDF — malware analysis report

Static analysis result for SHA-256 75b95c365e75663e…

MALICIOUS

PDF

69.5 KB Created: 2021-01-31 11:58:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9e0991ec55585186074e8fb7f62c7984 SHA-1: 98555bde28408d1958977f80a21c213848453aa7 SHA-256: 75b95c365e75663e6f66ae4fdd133c7a854341a58e5290d1c124534f69f54e53
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/aws?utm_term=celestine+prophecy+tenth+insight+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370286/normal_6014b397b1d88.pdfIn PDF document text
    • http://abreudesigns.com/56171537704bvcfm.pdfIn PDF document text
    • http://pasetbs.xyz/62572818779ouawk.pdfIn PDF document text
    • http://mubalupuzapo.22web.org/manipurakuremafena.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369629/normal_5fcf1b89b0907.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409814/normal_6008b2aeed4fb.pdfIn PDF document text
    • http://potoborotagivud.22web.org/astrosage_kundli_app.pdfIn PDF document text
    • http://bionatur.space/birds_of_prey_cast_and_crewn222n.pdfIn PDF document text
    • https://jevezorubik.weebly.com/uploads/1/3/4/8/134864628/88384f11.pdfIn PDF document text
    • http://fujepopini.22web.org/wovapenazozakisovumugiv.pdfIn PDF document text
    • https://cdn.sqhk.co/wifopuzuxiba/gdjgl85/swing_low_sweet_chariot_biblical_meaning.pdfIn PDF document text
    • https://finamiwowekizo.weebly.com/uploads/1/3/2/3/132302732/tegukepi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368949/normal_5fff03476a1cd.pdfIn PDF document text
    • https://matiposokatogu.weebly.com/uploads/1/3/0/7/130739068/doxaza_janimili_wizeti.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dobuwawag.rf.gd/vumabimamonagogekoxex.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_off0000d398.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD398 5212 bytes
SHA-256: 91708f59c57d49846f49f01da330c05f5ac810435fc3d9308906117c46fefdd5
font_01_sfnt_off0000e55b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE55B 10444 bytes
SHA-256: 0b8f5331cefae11d48875a2ea3c73fa7475b47fab4e5b5e96d5c876fcbc09393