Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a30fc2f1a0b2074…

MALICIOUS

PDF

72.5 KB Created: 2021-02-26 01:11:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 29dd869a45b9492f275f3a1fc908204d SHA-1: 55b3562f67c82f81269038221b36cc1ffe188fb1 SHA-256: 4a30fc2f1a0b2074f740c11784b1af877aa267b51894ce0139f92869d884205c
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/award?keyword=how+to+eat+fried+worms+book+online+free PDF link annotation
    • https://bipinudaw.weebly.com/uploads/1/3/4/7/134718108/rujeli.pdfIn PDF document text
    • https://cdn.sqhk.co/guwewaxa/hgXgcjf/32275170291.pdfIn PDF document text
    • https://paxogusav.weebly.com/uploads/1/3/4/0/134040839/bamemodazujidaneg.pdfIn PDF document text
    • https://paxituzupinemof.weebly.com/uploads/1/3/5/3/135303349/374a118bbb.pdfIn PDF document text
    • https://sejixegagetuta.weebly.com/uploads/1/3/0/9/130969850/peroxijimufexibu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422382/normal_60066ceea9105.pdfIn PDF document text
    • https://bamufikike.weebly.com/uploads/1/3/1/6/131606241/3591499.pdfIn PDF document text
    • https://cdn.sqhk.co/wajuletixex/dhaibeA/guzebeber.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419623/normal_6026a6915ea20.pdfIn PDF document text
    • https://gupexududoteg.weebly.com/uploads/1/3/5/3/135302954/roduv_riwevov_wikesip.pdfIn PDF document text
    • https://nefawuwezogixo.weebly.com/uploads/1/3/1/1/131163734/fuzisuzitilatozonu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kofaxafogi.myartsonline.com/57844966455.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_off0000e059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE059 5312 bytes
SHA-256: 307a1da4164b99717cc97d5c9465cdcd0350b50b3b0771f743703fa3143c3dfb
font_01_sfnt_off0000f265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF265 10176 bytes
SHA-256: f4192e12779d24e7cfb7eaf67be8d1fdcd5e1a69daa8e9395793f6cbf4243b51

Open this report in the interactive analyzer, or submit your own file for analysis.