Malicious PDF — malware analysis report

Static analysis result for SHA-256 9804d25b5f4cf0be…

MALICIOUS

PDF

84.9 KB Created: 2021-03-28 05:01:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 89eaebdfe3f0a92eaf0d77e70bfc82a7 SHA-1: 7e12bcb704c0e6f714816cc1e8bf251e02d30c96 SHA-256: 9804d25b5f4cf0becf9ebb6a311affd2f0b2d74aab836948ebe1b5054d7315f7
186 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO manipulation tactic. The ML classifier also strongly indicated maliciousness. While no scripts were explicitly extracted, the nature of the link farm and the phishing detection suggest the document is intended to redirect users to malicious or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 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://pelibifir.ru/123?utm_term=parts+of+vermiform+appendix PDF link annotation
    • http://tawabuzawi.iblogger.org/binary_system.pdfIn PDF document text
    • https://metenesepagozo.weebly.com/uploads/1/3/4/7/134710396/feeebed72858.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409394/normal_604db72a55304.pdfIn PDF document text
    • https://napuguvu.weebly.com/uploads/1/3/0/9/130969658/5012360.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409610/normal_60049ae8c13c3.pdfIn PDF document text
    • https://bagesasadav.weebly.com/uploads/1/3/4/3/134383367/rezumeluzatuva.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386848/normal_604674bfc5231.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418365/normal_5fe84b2d2779a.pdfIn PDF document text
    • https://gotagifegu.weebly.com/uploads/1/3/1/6/131607164/xugobemeti_posakila_mizeke_milad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405208/normal_603a57ce61288.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494149/normal_5fdc3de58e4e3.pdfIn PDF document text
    • http://bojikewexojok.iblogger.org/2008_honda_crv_service_schedule.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402481/normal_6020b31e0c079.pdfIn PDF document text
    • http://pidawiwosoda.iblogger.org/hadestown_sheet_music.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://700ceb37-22d2-47c5-9888-d858af679aee.filesusr.com/ugd/c345b0_616604a29d964fe88fa08a2287aee67c.pdf?index=trueIn PDF document text
    • http://pujusojup.epizy.com/manet_mobile_ad_hoc_network.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a1b1c7c-a345-422b-92ee-eabb4b425351/how_to_fix_cracked_lg_tv_screen.pdfIn PDF document text
    • https://2a4b29e6-a790-453e-81e7-e8b9caf2c27b.filesusr.com/ugd/bf0735_38f6d855683c4be5bf10009b7f05923a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/69167262-9d0f-4746-881a-9307ac357d8d/video_games_lana_del_rey_lyrics_greek.pdfIn PDF document text
    • https://435a888a-8f80-410d-aa77-77edd6e4491d.filesusr.com/ugd/51fec0_aec64edeef3f438cbf502a6bdba0d71d.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/317af05e-dac7-4112-bd1d-701f0504d044/pax_romana_definition_deutsch.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_off00010dd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DD2 5284 bytes
SHA-256: c50bd46db3dae43acb29b4ccc8dc868f979088419c3d4c9ec3d99bd47b623a9f
font_01_sfnt_off00011fc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FC1 11516 bytes
SHA-256: e97d31ea1615ce9aeb8c3d58bd90709da7f14d19e3db0e4cce40c803725690d3