Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbbeb1a91e745975…

MALICIOUS

PDF

71.1 KB Created: 2021-03-01 07:40:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 29fb27f21b3115aca11383cce6623542 SHA-1: 72958e9ce3d121efa35ad0491456d9c2e7b00004 SHA-256: dbbeb1a91e7459750f610464e0aef2188f586a74b750b793566aa40ca025e7ea
126 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
  • 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://xajibur.ru/award?keyword=how+to+answer+ethical+scenario+questions PDF link annotation
    • https://fimosezit.weebly.com/uploads/1/3/0/7/130775491/tupenipefajiziziwaso.pdfIn PDF document text
    • https://cdn.sqhk.co/xagaxubibiz/eiiYjcK/89400046923.pdfIn PDF document text
    • https://towipikegogu.weebly.com/uploads/1/3/4/6/134690187/a28f359.pdfIn PDF document text
    • http://gajaxujifusokul.mygamesonline.org/pulipivezisi.pdfIn PDF document text
    • http://fulusixavopowem.iblogger.org/gedefed.pdfIn PDF document text
    • http://gewebufokorilu.iblogger.org/91241206862.pdfIn PDF document text
    • https://xomitemekebok.weebly.com/uploads/1/3/4/8/134881854/vagatixu.pdfIn PDF document text
    • https://moninedowilex.weebly.com/uploads/1/3/1/4/131436981/6015755.pdfIn PDF document text
    • https://vigijamavo.weebly.com/uploads/1/3/0/9/130968937/pugobofobomuja_poxuzenivi_nedol_bajufovuduge.pdfIn PDF document text
    • https://cdn.sqhk.co/mopewedote/gdtOggH/8805009566.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dafawesag.epizy.com/779762536.pdfIn PDF document text
    • http://niwurekatexo.atwebpages.com/manual_stihl_fs_55_parts_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/24073435754.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/acca_f8_notes.pdfIn PDF document text
    • http://momomalolo.epizy.com/nosql_database_design_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/najipavez/4528258344.pdfIn PDF document text
    • http://lurimoromi.rf.gd/rojevawisezun.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_off0000daa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAA0 5068 bytes
SHA-256: ca37970eef64d69d7e79c911e357079b1e563bd7367f1f475d2adf5b76c67f80
font_01_sfnt_off0000ebe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE8 10380 bytes
SHA-256: 5ba884f659036e990072c06b66ac416fe097b1a433b387a81b15d92b8cf7073e