Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2869948cb5ec61b…

MALICIOUS

PDF

73.1 KB Created: 2021-02-23 23:45:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0fd85c94a345629de743c76da42548c2 SHA-1: 3617853836d216279c3decbd30822ffdfd004f7d SHA-256: d2869948cb5ec61b7d2b85c79263cf6c12f4ab0b59ceefd9f6225019015d4611
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wix?keyword=electric+dreams+movie PDF link annotation
    • https://zisatusomet.weebly.com/uploads/1/3/4/8/134872515/6874033.pdfIn PDF document text
    • https://wuxagukokixeg.weebly.com/uploads/1/3/5/3/135398542/kafupajav.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391317/normal_5fec13d10f8b1.pdfIn PDF document text
    • https://cdn.sqhk.co/jiledexuda/ggngii1/finger_spinner_fidget_toy.pdfIn PDF document text
    • https://jokesekarizav.weebly.com/uploads/1/3/1/4/131407558/wugigiranusexuduz.pdfIn PDF document text
    • https://cdn.sqhk.co/pixefavenar/b6jajhg/88484245031.pdfIn PDF document text
    • https://cdn.sqhk.co/pixorikibam/hDTifhc/ana_slide_water_adventure_3ds.pdfIn PDF document text
    • https://watagejikifawup.weebly.com/uploads/1/3/4/5/134589749/xujajemorugerogevu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468571/normal_6023da4016a56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374708/normal_6028f36dc6b43.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368782/normal_60327c924fe2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449789/normal_603200ff74309.pdfIn PDF document text
    • https://tobevasisutigi.weebly.com/uploads/1/3/0/8/130814636/2a0178eeb423ec.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e3fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3FB 5104 bytes
SHA-256: e4f0bf75691e8b77650b2cc7fb5be98c3e5491eaf74d6ef0e6d1fe1027ffec4e
font_01_sfnt_off0000f54a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF54A 10196 bytes
SHA-256: 149ad356424387be14b3b7e915caa48071433a9be886fb96abc702ab02bab071