Malicious PDF — malware analysis report

Static analysis result for SHA-256 927f5d3c050bfc31…

MALICIOUS

PDF

101.6 KB Created: 2021-03-16 04:36:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2548381f5066f980d3ee0c6a8bb60a36 SHA-1: 716b2f1acfc1ef65982ece6f74137587fa6b1d49 SHA-256: 927f5d3c050bfc31630559ba3440f52376b33980636c1fb9af6f2df9291984f7
186 Risk Score

Malware Insights

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

The PDF contains numerous external links, flagged as a link farm designed to direct users to potentially malicious websites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://nipisod.ru/award?keyword=aarti+kunj+bihari+ki+girdhar+krishna+murari+ki+pdf PDF link annotation
    • https://nalufubuxozukex.weebly.com/uploads/1/3/4/4/134479837/1660566.pdfIn PDF document text
    • https://gogesixemaso.weebly.com/uploads/1/3/2/3/132302802/xuzud.pdfIn PDF document text
    • https://tajamexuzoxobug.weebly.com/uploads/1/3/1/4/131410736/dexugidozu-tunuvuwexelov-konekep-vunekowetegar.pdfIn PDF document text
    • http://tuderoba.getenjoyment.net/panchatantra_tales_download.pdfIn PDF document text
    • https://lunidopufakim.weebly.com/uploads/1/3/4/4/134482460/zakenanasov.pdfIn PDF document text
    • https://babotiditufo.weebly.com/uploads/1/3/4/6/134694550/bda7b1eda67364c.pdfIn PDF document text
    • https://gapefupekud.weebly.com/uploads/1/3/1/8/131871489/jibosi.pdfIn PDF document text
    • http://lejunuzegakikuv.mypressonline.com/zakidijevapolin.pdfIn PDF document text
    • https://riwaxetonebena.weebly.com/uploads/1/3/4/3/134363930/xisikutajemowiw.pdfIn PDF document text
    • https://mitivowa.weebly.com/uploads/1/3/1/6/131607237/fasepupijedirose.pdfIn PDF document text
    • https://wuwabisa.weebly.com/uploads/1/3/1/6/131606234/xeluxulotajobufe.pdfIn PDF document text
    • https://wuduzavuvavazi.weebly.com/uploads/1/3/4/6/134618101/8223325.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cc00a18-e6d1-4939-b51a-fecf0bfbec47/60400246613.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8581d6b6-968c-495a-99a5-cd503c8038a7/26543673658.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd46ced4-df73-47fa-a56b-0662328228b3/is_big_little_lies_available_on_amazon_prime.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83cfcb24-37e1-4b8e-bb6d-b14f7553bc19/warriors_into_the_wild_tv_show.pdfIn PDF document text
    • http://nojikigor.myartsonline.com/mario_benedetti_te_quiero.pdfIn PDF document text
    • http://solejow.myartsonline.com/83591796605.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c403573c-3a26-455c-8349-b3c16cb8353a/what_size_sheets_fit_a_pack_and_play.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90cb0af1-f646-4d49-9bbe-76811b98e546/unity_asset_store_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74646906-639b-4b85-812a-21969ddab4bb/colt_ar_15_upper_receiver_markings.pdfIn PDF document text
    • http://gezixus.myartsonline.com/paul_eluard_liberte_analyse.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11212 5692 bytes
SHA-256: f51b3ebce7672989b34bd7c5f5350ed5327eb07f7f1f382d3d07e9043a5706ca
font_01_sfnt_off0001254a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1254A 3772 bytes
SHA-256: 240b01ea4caa45f57f54ab4d6d5eb6187b906162b2682bc4dcfb9155b206388d
font_02_sfnt_off000130f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130F0 11504 bytes
SHA-256: 6a7f45bed8fb54e40d760b077cc7b6e1c56d3b96c0526a4bf074f40614d4bebf
font_03_sfnt_off00015768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15768 14964 bytes
SHA-256: 5d498f031be7bc8c4b4a8b207f4800838a67a7cc6d3e9a3b931e5e4a4f0473a3