Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bdf980f90094dce…

MALICIOUS

PDF

66.9 KB Created: 2021-01-24 22:28:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: fffcdf65268b4d0b42c8f47150a3ff72 SHA-1: 4986f83853719b7fe2a4baa30e033bdc7f42b94f SHA-256: 7bdf980f90094dceaebfb6e9dbb84b9085adc2107e92cc55db9f8668c4b0bcde
166 Risk Score

Malware Insights

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

The PDF document contains multiple external URIs and is flagged as a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway security. The ML classifier and ClamAV detection strongly support a malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://maypoin.ru/123?utm_term=bridge+to+terabithia+book+pdf+download PDF link annotation
    • http://naturapple.space/jivis9u2kt.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/chajejd/gravity_payments_ceo_dan_price_salary.pdfIn PDF document text
    • http://help-copyrightservice.xyz/3169252288529w2b.pdfIn PDF document text
    • http://leyloften.online/new_defender_130_pickupbz2u2.pdfIn PDF document text
    • http://zavarivaemvmeste.ru/38473569760g28yk.pdfIn PDF document text
    • https://cdn.sqhk.co/wibononuve/gjajhjs/real_antistress_stress_relief_relaxing_game.pdfIn PDF document text
    • http://igcopyrightverify.com/punezezopuwumizokk76xw.pdfIn PDF document text
    • http://motivawka.online/rekozabavuwubuc52.pdfIn PDF document text
    • https://penotogales.weebly.com/uploads/1/3/1/4/131438478/1516350.pdfIn PDF document text
    • https://cdn.sqhk.co/fekawifen/hhbWcib/16029240743.pdfIn PDF document text
    • https://nedovewa.weebly.com/uploads/1/3/5/3/135316636/2507919.pdfIn PDF document text
    • http://just-gopro.com/zirewisuwoa61pe.pdfIn PDF document text
    • https://leresidatebij.weebly.com/uploads/1/3/0/7/130776374/4523aa7a3d8.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/jezekemunidup/body_temperature_app_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/encyclopaedia_of_islam_2nd_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/ielts_academic_writing_task_1_vocabulary.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_off0000c882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC882 5468 bytes
SHA-256: 574bb308d310db4375efabfc8b588fa86028306b25634e15e60d934927101f20
font_01_sfnt_off0000db26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB26 10384 bytes
SHA-256: d02d79dfa01e995251c6d3f42cf383892f7a59662cea8f55bdc336fcf73d00a5

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