Malicious PDF — malware analysis report

Static analysis result for SHA-256 d269c1ce2949b015…

MALICIOUS

PDF

128.2 KB Created: 2020-11-17 15:41:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 773967cdab97d3f341dfc0a3561e674c SHA-1: 59d381c868aa94b1a73accbf6abb5c265459b265 SHA-256: d269c1ce2949b015565260e0b6587a4ec29ba6633a8b46755710da245044fbdb
244 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
  • 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 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.
  • 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://ggtraff.ru/aws?utm_term=biblia+king+james+romana+pdf In PDF document text
    • https://masogipu.weebly.com/uploads/1/3/1/6/131606875/d98de1e087554d.pdfIn PDF document text
    • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/7317165.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410433/normal_5f9e04094904f.pdfIn PDF document text
    • https://lubipufubuk.weebly.com/uploads/1/3/4/5/134597980/lexadopolaze.pdfIn PDF document text
    • https://wixurawitubeza.weebly.com/uploads/1/3/4/3/134319602/8760895.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375341/normal_5f8963aedf0f0.pdfIn PDF document text
    • https://boxavukexuzar.weebly.com/uploads/1/3/0/7/130775797/labalufegili.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/e09b488a-eb94-4151-bdc1-0c9c1c329534/wevojeponujatokuzenob.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/zamamir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ceac3485-8385-4bb9-8df1-60627f15ea27/super_mario_bros_game_online_unblock.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/mackie_sr24.4_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/8406763744.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_off0001bc97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BC97 5692 bytes
SHA-256: 56d8c2c8b2580ab4d47c8e01ab0a10fade043e7e8dc7a2d51578c75165dd5fee
font_01_sfnt_off0001cfec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CFEC 11580 bytes
SHA-256: db1ae2bbe5f36f169a380fb28e64a05c0cae532b928e26b4e0498c8adc470c89