Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa851e5e70f6803c…

MALICIOUS

PDF

72.6 KB Created: 2021-01-19 01:48:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: eb736cca70442766d99a9a744924a5ee SHA-1: 3403ea16269a21eec743530ba6bd40fef18b46ea SHA-256: aa851e5e70f6803c29ca94139b03676af374476bad5071581b03e7be411291c9
126 Risk Score

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
  • 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://baarspo.ru/wb?keyword=english%20premier%20league%20unbeaten%20records PDF link annotation
    • https://momaduse.weebly.com/uploads/1/3/4/8/134895420/1f0a9b90bb710.pdfIn PDF document text
    • https://gofuzuxelizexo.weebly.com/uploads/1/3/5/3/135391542/feginu.pdfIn PDF document text
    • http://lerevujoda.iblogger.org/blackmart_apk_2018_free.pdfIn PDF document text
    • https://cdn.sqhk.co/wevafofed/gjhidgh/48_laws_of_power_review_new_york_times.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406168/normal_5fcb988cdd220.pdfIn PDF document text
    • https://cdn.sqhk.co/sifapudoxig/eoohhSP/shelter_in_place_san_francisco_september_2020.pdfIn PDF document text
    • https://sogifeni.weebly.com/uploads/1/3/2/7/132712483/neribigob-zekokapomak.pdfIn PDF document text
    • https://mizemajawoxulu.weebly.com/uploads/1/3/1/4/131437858/jababunoxedi-xomesixi-xukuxaf-reguxibalorajit.pdfIn PDF document text
    • https://cdn.sqhk.co/wugotiparo/hjiggjG/gacha_life_outfits_ideas.pdfIn PDF document text
    • https://nikuwexipamojag.weebly.com/uploads/1/3/0/8/130813731/4116610.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://papawipowujujed.rf.gd/cryoglobulinemia_test_report.pdfIn PDF document text
    • http://wefexafunedex.epizy.com/62810421311.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/vulovufokujot.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/estado_liberal_caracteristicas.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/disubstituted_cyclohexane_conformations.pdfIn PDF document text
    • http://bewojux.epizy.com/18972341461.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/mozalag.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_off0000dec3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEC3 5584 bytes
SHA-256: 08a77f6a64536462297f474b373b90b180e26002d1b61d6e7bb6c7ea3d8f9c71
font_01_sfnt_off0000f18f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF18F 10456 bytes
SHA-256: f9a90b7e77a8147d9e86fc6e997d64bfec86ed04d843e8413c30df02bd4c9f49