Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c6ba567f661f333…

MALICIOUS

PDF

89.1 KB Created: 2021-03-02 15:44:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: ec0ea652a1c4f69d11e15f954a62cfae SHA-1: e2b7efb040b5061e4778ced4956f121b8aaba485 SHA-256: 0c6ba567f661f33377edb7bd041fe650ea9341e1897dd41df7c5b93ff72606e1
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous external links, with a critical heuristic identifying a link farm designed to distribute more malicious PDFs. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to potentially malicious sites for further exploitation or phishing.

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 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.
  • 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://dafemum.ru/award?keyword=monopoly+rules+money+pounds PDF link annotation
    • http://remont-kholodilnikov.website/hide_and_seek_download_pc8x37t.pdfIn PDF document text
    • http://academic-club.ru/35139029402arn3p.pdfIn PDF document text
    • http://masajsalonunuz.com/zezorovogudinotugadunax8stfl.pdfIn PDF document text
    • http://wonder-ita.fun/epic_conquest_cheat_codesbx1l7.pdfIn PDF document text
    • https://kominalekawer.weebly.com/uploads/1/3/1/6/131636772/mupebexajo.pdfIn PDF document text
    • http://jirafka.space/40826985116tzvrr.pdfIn PDF document text
    • http://tersq.fun/what_are_the_three_types_of_body_planes91qw8.pdfIn PDF document text
    • http://gipilunafa.iblogger.org/is_marlin_good.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/patajuniw.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/wewunagotafulisoz.pdfIn PDF document text
    • https://s3.amazonaws.com/wupagivoz/gujufirirunogefi.pdfIn PDF document text
    • https://s3.amazonaws.com/tokudapele/what_is_chi_in_medical_terms.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/78914304282.pdfIn PDF document text
    • https://s3.amazonaws.com/pigolo/shallow_lady_gaga_sheet_music_piano.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_off00012259.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12259 5000 bytes
SHA-256: eb062d83a24f41d66d137f7433e09029b8ed8d174f7bc7f91a206085dc8f0158
font_01_sfnt_off00013355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13355 10616 bytes
SHA-256: e31e5f72ab2be9cbb8e7c8e1df98757a0c4a0e38360452607360d51c063c7ec1

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