Malicious PDF — malware analysis report

Static analysis result for SHA-256 637acb5fda9091c3…

MALICIOUS

PDF

75.2 KB Created: 2021-03-03 20:14:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c0ca38a86003962206b7581db2a61bcd SHA-1: d54434a6690979cd5a44e6a972cf39ce709f5668 SHA-256: 637acb5fda9091c3d7e48119d46f4db264e09931ba15f0b3be861541b476d2fb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/strik?utm_term=who+is+the+queen+of+heaven+kjv PDF link annotation
    • http://zitugaxusi.mygamesonline.org/rivabagaropom.pdfIn PDF document text
    • https://vamubediva.weebly.com/uploads/1/3/4/9/134901044/tuwogiluzasebidirol.pdfIn PDF document text
    • https://jafoxoxuxovawe.weebly.com/uploads/1/3/0/8/130813536/3307191.pdfIn PDF document text
    • https://cdn.sqhk.co/takularozo/jgivjgh/disney_battle_heroes_new_characters.pdfIn PDF document text
    • https://lodufokokafapav.weebly.com/uploads/1/3/5/3/135346761/b44a66158add33.pdfIn PDF document text
    • http://mevesepegubisis.scienceontheweb.net/89545782000.pdfIn PDF document text
    • http://kiwenalod.medianewsonline.com/safajokugemup.pdfIn PDF document text
    • http://topuniversityru.fun/serinosuganiguxikevogvlr4q.pdfIn PDF document text
    • https://cdn.sqhk.co/sivefuxonix/b3whijf/bukodurusezivatozorusivun.pdfIn PDF document text
    • https://cdn.sqhk.co/panafilaputu/5lteibn/40961125532.pdfIn PDF document text
    • http://betijeduw.getenjoyment.net/49668972326.pdfIn PDF document text
    • https://sulumakopata.weebly.com/uploads/1/3/0/7/130775191/7480466.pdfIn PDF document text
    • http://sevoxotedeki.medianewsonline.com/45731560499.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rodedewezijore.atwebpages.com/1999_international_4700_dt466_specs.pdfIn PDF document text
    • http://lipabarud.atwebpages.com/34999346752.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_off0000e653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE653 5068 bytes
SHA-256: bd6f23cefa995a41b9b0db37644de7736550de790a91b59ead1c0c547c77449d
font_01_sfnt_off0000f7b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7B1 11904 bytes
SHA-256: 7af630a5393e0e06aeda4e282aec51e29135ce2307e5f67f390ae3bd59dcf073