Malicious PDF — malware analysis report

Static analysis result for SHA-256 29dc0a0c2395f063…

MALICIOUS

PDF

72.0 KB Created: 2021-03-02 18:26:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 88cc302ffdce5fe0b2f505d9da75f2f4 SHA-1: 009557a808eb29d491d5a334ba4d0c9151669e6d SHA-256: 29dc0a0c2395f063430e049b4576fd74d32c463996616e6e2b602ef4ab170b09
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 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://dugedepap.ru/award?keyword=sat+reading+history+passages PDF link annotation
    • https://vomukefepa.weebly.com/uploads/1/3/1/8/131872153/burebotuvevejo_pipolozidilu_melokixo_rigugadumopo.pdfIn PDF document text
    • https://detubutil.weebly.com/uploads/1/3/5/3/135348338/rorutipitiludi.pdfIn PDF document text
    • https://zujituxo.weebly.com/uploads/1/3/2/6/132681889/42a4b.pdfIn PDF document text
    • https://cdn.sqhk.co/balekunu/OheheZR/xepogi.pdfIn PDF document text
    • https://wejigawavopon.weebly.com/uploads/1/3/4/3/134305277/kirilobet.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/hgigj3a/85180355183.pdfIn PDF document text
    • https://cdn.sqhk.co/pesegozod/KoOhcbe/animal_restaurant_little_fox_customer.pdfIn PDF document text
    • https://danivuzi.weebly.com/uploads/1/3/2/6/132681213/04d74ee3aa05f.pdfIn PDF document text
    • https://zikemuwebiwolim.weebly.com/uploads/1/3/5/9/135992964/fifumidowakurevi.pdfIn PDF document text
    • https://cdn.sqhk.co/retagigimusa/hh1Xhaz/68388172209.pdfIn PDF document text
    • https://kujepilam.weebly.com/uploads/1/3/5/3/135343620/5781123.pdfIn PDF document text
    • https://cdn.sqhk.co/sifomujotaxa/SgchcCe/93186998052.pdfIn PDF document text
    • https://zumofimuletoxol.weebly.com/uploads/1/3/4/0/134018509/758b12d.pdfIn PDF document text
    • https://cdn.sqhk.co/babonisu/SwDAXn0/paladinz_champions_of_might.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vapedefomagejev.epizy.com/fekiroxeborojusamatuv.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_off0000d8c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8C0 5396 bytes
SHA-256: 8a245c0cf71531e5759647bdcc30e8710d4f91f0c8231ee9ccae45866889b1a0
font_01_sfnt_off0000eb16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB16 12256 bytes
SHA-256: 8a8e4191a7af2126d7d7ad70ead3cd1011cc501ee7833e8687487a4c394b8a2b