Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea2ca2ca75cf0fb3…

MALICIOUS

PDF

84.7 KB Created: 2021-04-01 17:23:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: dcd11d9d4bcc05b3d3507cd603918ffe SHA-1: 724b0097e8751622eca69a51a824716f4247a409 SHA-256: ea2ca2ca75cf0fb3721630cae13a0ef2b91ad5da3cf8c68127cd87ed1e71d2eb
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a lure designed to redirect users to malicious content.

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://soxebez.ru/strik?utm_term=tesla+model+3+long+range+awd+322+miles PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4462697/normal_605c086f66552.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401703/normal_6029fafc6cf2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456389/normal_6034989cb967a.pdfIn PDF document text
    • http://sexivajojivegu.iblogger.org/jafowosefuxodi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410186/normal_60063f11553ee.pdfIn PDF document text
    • http://kijuguwosaxo.22web.org/80404604045.pdfIn PDF document text
    • https://cdn.sqhk.co/xasakeza/jazfy0Y/country_friends_veterinary_clinic_royse_city_tx.pdfIn PDF document text
    • https://cdn.sqhk.co/doxowite/ghcgiF9/hop_valley_springfield_happy_hour.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/cIhgaPb/elchronicle_new_characters.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454543/normal_604d107d86bbc.pdfIn PDF document text
    • http://vewisono.iblogger.org/jeu_de_carte__2_simple.pdfIn PDF document text
    • http://gagerovovus.22web.org/o_mio_babbino_caro_imslp.pdfIn PDF document text
    • http://fapinudonas.22web.org/59865703.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sisuvoxodukon.epizy.com/fevogererudegaxoxis.pdfIn PDF document text
    • http://luxusuriva.epizy.com/absenteeism_policy_template.pdfIn PDF document text
    • http://zexodelovakeg.rf.gd/balance_sheet_sample_ifrs.pdfIn PDF document text
    • http://jarunotaso.rf.gd/fishing_gear_freshwater.pdfIn PDF document text
    • http://gogidovegesoxe.epizy.com/gizazew.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB4E 5484 bytes
SHA-256: 861709fc05abeb40a6ad4d15778b9f67f06057e2c6a26b1a47613873d8c72ca3
font_01_sfnt_off0000fdef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDEF 15640 bytes
SHA-256: 83701392b86e57219e6751a314b0eedd95b89f26271cf5c8398aaf848d998383
font_02_sfnt_off00012e80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E80 16060 bytes
SHA-256: 713933360072c9d59346590fad668f98c3603c6d2b72ed941ce85481f6af0b74

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