Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce9020aafd999f69…

MALICIOUS

PDF

79.9 KB Created: 2021-04-02 22:46:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 035211c92d8d8bd688410b89c7a8a70e SHA-1: 2451acc4f6769e6b6a62ddd7688a149d6e67bd84 SHA-256: ce9020aafd999f6987e7fdd9385c9ab82ddf5ddac2f3c4206e9fdd227bb682cf
184 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with several pointing to known malicious redirector infrastructure and disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to lure users to external, potentially harmful, sites.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/award?keyword=advantages+of+eclectic+approach+pdf In PDF document text
    • https://fekazivijiwawad.weebly.com/uploads/1/3/4/6/134687088/9556115.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385038/normal_601474a91dc67.pdfIn PDF document text
    • http://hookup681.site/fast_racing_league_wiiossg9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464871/normal_603c6b264a714.pdfIn PDF document text
    • http://azalea.store/maxi_cosi_mico_ap_limited_edition_isofixofm7f.pdfIn PDF document text
    • https://zanemuwezujapab.weebly.com/uploads/1/3/4/7/134765617/fcf51ebc80.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410433/normal_5fcc806b67d24.pdfIn PDF document text
    • http://reduslim-italia.website/6795831366238v4m.pdfIn PDF document text
    • http://fodamibokaf.66ghz.com/dupigabugir.pdfIn PDF document text
    • http://zasaluto.iblogger.org/cinderella_2006_movie.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://menepanago.rf.gd/tuvisozumizodaxepaxosigi.pdfIn PDF document text
    • http://nukuxora.epizy.com/31325522821.pdfIn PDF document text
    • http://nirobow.epizy.com/brave_browser_apk4fun.pdfIn PDF document text
    • http://zenujasope.epizy.com/nakenamexemanebiregiwawat.pdfIn PDF document text
    • http://ravigokabuf.rf.gd/ibm_cognos_report_studio_case_statement.pdfIn PDF document text
    • http://zavufomagug.rf.gd/les_articles_partitifs_cours.pdfIn PDF document text
    • http://diwixadareji.epizy.com/gogizasadidok.pdfIn PDF document text
    • http://defizal.epizy.com/king_triton_crown_template.pdfIn PDF document text
    • http://vuwepimu.epizy.com/answer_key_mpsc_clerk_typist_2017.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE55 5252 bytes
SHA-256: 8219db0f7ef546b09374189aed4a308277f5b99cd6719051ab17d421167d86d0
font_01_sfnt_off00010035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10035 10104 bytes
SHA-256: 070b3ebe48918543a9a0f4c906a833ea2cd8a3ac7d34658e1ef1865e03d20baf
font_02_sfnt_off0001229d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1229D 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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