Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3086483b369eaf1…

MALICIOUS

PDF

109.4 KB Created: 2021-03-26 10:43:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1d35135be1f282f66ba31a2726e697ce SHA-1: 5a51953bf2712fc9186b1ff437000bb98c39dd12 SHA-256: d3086483b369eaf1e321b011234b2b7393c4acf7fe908cbbe4f27440fbe51b96
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many pointing to disposable hosting services, indicating a link farm or SEO spam operation. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. The embedded URLs and the PDF's structure suggest it's designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://ponafet.ru/award?keyword=chaupai+sahib+pdf+in+punjabi PDF link annotation
    • https://viwizabodug.weebly.com/uploads/1/3/4/5/134509287/3740778.pdfIn PDF document text
    • https://wagetuve.weebly.com/uploads/1/3/5/3/135323282/viwepakoten.pdfIn PDF document text
    • http://tameenegypt.com/how_to_sync_summer_baby_monitortfwex.pdfIn PDF document text
    • http://lagejarejitog.mypressonline.com/examen_preocupacional_afp_futuro.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/acca_f9_dec_2013_answers.pdfIn PDF document text
    • https://funotagikaxu.weebly.com/uploads/1/3/1/8/131857914/676e257fbc0d9b9.pdfIn PDF document text
    • https://s3.amazonaws.com/sobaketemu/zixomofi.pdfIn PDF document text
    • https://dutebosolet.weebly.com/uploads/1/3/0/9/130969562/bewobi.pdfIn PDF document text
    • http://makebugobiwuka.mypressonline.com/73860539940.pdfIn PDF document text
    • https://gitapizi.weebly.com/uploads/1/3/2/6/132683136/1984721.pdfIn PDF document text
    • https://s3.amazonaws.com/veledabejufi/libuxaxarerazoji.pdfIn PDF document text
    • http://mif-smeh.space/dutebivigum6sa8c.pdfIn PDF document text
    • http://bapitafi.22web.org/delivojodo.pdfIn PDF document text
    • http://titoto.xyz/free_acoustic_blues_guitar_lessonsejb57.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
    • http://www.daltonmaag.com/In PDF document text
    • http://vejosekafabij.rf.gd/its_kind_of_a_funny_story_full_movie_download_480p.pdfIn PDF document text
    • https://f499a9ea-5579-4d3c-a180-ba191067f9b7.filesusr.com/ugd/34ec99_809b039a227849938f070c244135378a.pdf?index=trueIn PDF document text
    • http://retetopipazaned.epizy.com/annual_report_bekasi_fajar_industrial_estate_2017.pdfIn PDF document text
    • https://a819be37-316e-4347-83bc-b067fb6953c8.filesusr.com/ugd/d5662a_9718085bdd8c4092a4148a3f23aef400.pdf?index=trueIn PDF document text
    • http://lelixik.epizy.com/aspectj_eclipse_plugin.pdfIn PDF document text
    • http://najaxobefirag.epizy.com/solimiguxazowikurubudeda.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012c74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C74 4816 bytes
SHA-256: 7d1bf893a50c6c011ffd6838e96967b4131c2b786ad05992d73446938f8c5799
font_01_sfnt_off00013cb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CB3 3740 bytes
SHA-256: 814992be763021c11dca23fed22b8bb7a0f9688c8b5af2f3d58b36f318d7b63c
font_02_sfnt_off0001482d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1482D 11952 bytes
SHA-256: cb450d8b43a0591d6cab13f225a2e422b2e99a8daed564bf1b5fe52a9df4ae56
font_03_sfnt_off00016d2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16D2D 12824 bytes
SHA-256: f14a13751da6496dee59e0a0332c93a5bbd6d227d8c6abff366f99880cf83b53
font_04_sfnt_off000196d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x196D2 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378