Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d4af8989fc68200…

MALICIOUS

PDF

72.7 KB Created: 2021-01-31 08:40:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: a0b1eeebbb5225c39357b89c67521b3f SHA-1: 0cdd27fee939a9c8d7dedfa34c1b1a29405aa140 SHA-256: 6d4af8989fc68200fb56d5d9b50b78b5b5561ac31a72622d436b6a5f9d3d18df
184 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to known malicious redirectors or disposable hosting, suggesting a phishing or scam attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a lure to malicious websites, likely for credential harvesting or malware distribution.

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://traffking.ru/wb?keyword=word%20pets%20free%20word%20games%20online In PDF document text
    • https://cdn.sqhk.co/xipapotug/iihjggi/46111552791.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454668/normal_5fce0d44678ba.pdfIn PDF document text
    • https://cdn.sqhk.co/gegefemorosu/iajggcS/adderall_doses_xr.pdfIn PDF document text
    • https://cdn.sqhk.co/xoxifopu/nmgeiaL/bizabawidadukugimevevag.pdfIn PDF document text
    • https://cdn.sqhk.co/jimumakevaji/GhficVV/60786100323.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366654/normal_5fdb32926dea5.pdfIn PDF document text
    • http://nubuweso.iblogger.org/93960308428.pdfIn PDF document text
    • https://cdn.sqhk.co/vipikunowi/gcggzje/juririnekos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481828/normal_5ff3ba9c3c967.pdfIn PDF document text
    • https://cdn.sqhk.co/sirepajaku/hihYpjD/91191729259.pdfIn PDF document text
    • http://pumujavebedopa.iblogger.org/46798356276.pdfIn PDF document text
    • https://cdn.sqhk.co/xonepogafix/ialmjhv/marketing_strategy_template_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/nupasoxure/fheYjji/zuru_x_shot_hawkeye_price.pdfIn PDF document text
    • https://cdn.sqhk.co/rureroso/3jjibge/hydro_dipping_supplies_list.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502500/normal_5fe81a5ec3f0b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387035/normal_5feb004a4a6df.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sovuberexizizir.epizy.com/kojariguni.pdfIn PDF document text
    • http://nowavef.epizy.com/maplestory_m_dark_knight_training_guide.pdfIn PDF document text
    • http://pebulibupa.rf.gd/bootcamp_6._0._6133.pdfIn PDF document text
    • http://januxak.rf.gd/64185091884.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_off0000df6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF6D 5468 bytes
SHA-256: 29297a57a1aa7342ec56b995937aa54f3b2a403fed4318255f68b52c3d671b5d
font_01_sfnt_off0000f20e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF20E 10384 bytes
SHA-256: 0b5a9e8a61724e69dda65b24fbf105b59cd0d3d1dc299fb1990001f5427ddc9d

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