Malicious PDF — malware analysis report

Static analysis result for SHA-256 923a29eef24d082e…

MALICIOUS

PDF

90.5 KB Created: 2021-03-23 06:20:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8cfd76847a33da6bb975bdf64ce6a868 SHA-1: a95390871ee3eba287e2c8c1339ec4919816e799 SHA-256: 923a29eef24d082eb5c684ee208813c7a0fa36f96d0ec95288a33b354c7420bc
246 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing attempt. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to obscure the final destination. The heuristic 'SE_BRAND_CREDENTIAL_PHISH' specifically identifies an Instagram impersonation lure pointing to a redirector URL, likely to harvest credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 7

  • 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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://sidilatadafexu.weebly.com/uploads/1/3/1/1/131164021/d4f987851f83f.pdf.
  • 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://ponafet.ru/wix?keyword=kendall+and+kylie+game+energy+cheat PDF link annotation
    • https://sidilatadafexu.weebly.com/uploads/1/3/1/1/131164021/d4f987851f83f.pdfIn PDF document text
    • https://cdn.sqhk.co/demexadol/i0tdgjo/gorillaz_feel_good_inc_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/jakatote/yuRgiwn/rugby_league_fixtures_2020_championship.pdfIn PDF document text
    • http://xidufefonudug.sportsontheweb.net/how_to_pair_jlab_to_iphone.pdfIn PDF document text
    • https://satepiwe.weebly.com/uploads/1/3/5/3/135350267/sewovemetonipuga.pdfIn PDF document text
    • http://info-pages.ru/xazigisojipejeredelobewilb80x.pdfIn PDF document text
    • http://gisoboxizaza.mygamesonline.org/dogoguba.pdfIn PDF document text
    • http://gosoxegekiri.mywebcommunity.org/the_economist_february_23rd_2020.pdfIn PDF document text
    • https://xowemaxixedire.weebly.com/uploads/1/3/5/3/135325030/3cc50263f5334b.pdfIn PDF document text
    • https://cdn.sqhk.co/xunijejozi/jjhjaLn/video_promoter_views_for_views.pdfIn PDF document text
    • http://mikovil.mywebcommunity.org/the_game_awards_voting_results.pdfIn PDF document text
    • https://merasata.weebly.com/uploads/1/3/1/3/131378960/gewuvawus.pdfIn PDF document text
    • https://zusikemibuv.weebly.com/uploads/1/3/1/6/131606719/namadeki.pdfIn PDF document text
    • http://it50off.pro/katifawokewunevaritemk7uxh.pdfIn PDF document text
    • https://pixirexujana.weebly.com/uploads/1/3/4/5/134527097/jitobatoke.pdfIn PDF document text
    • https://rorupuloloxotog.weebly.com/uploads/1/3/1/4/131409755/6328992.pdfIn PDF document text
    • http://pupigojoniru.mypressonline.com/acet_entrance_exam_reviewer.pdfIn PDF document text
    • http://muzibatixabu.mypressonline.com/jalokopudeke.pdfIn PDF document text
    • http://mavaxur.mywebcommunity.org/pifujebofabiteponurunig.pdfIn PDF document text
    • https://lavazelowima.weebly.com/uploads/1/3/4/3/134316744/930c5.pdfIn PDF document text
    • https://subutadenurafo.weebly.com/uploads/1/3/4/5/134581349/3b9cfbe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000116ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116EA 4988 bytes
SHA-256: f0eb7c39d6e4e224082bf3d430c10f9c63a857d39a1a64148d921cb01e8784bd
font_01_sfnt_off000127af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127AF 11392 bytes
SHA-256: 32d78a19dde2d63270c73fd89c40539ddbd966e64fb42e1da3982f82311145f3
font_02_sfnt_off00014e4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14E4D 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361