Malicious PDF — malware analysis report

Static analysis result for SHA-256 1929a5e0ed78ee80…

MALICIOUS

PDF

80.1 KB Created: 2021-03-22 04:01:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fb2ed30de58d1f3e4264b7a987370122 SHA-1: ebd97ccfc869ca9efb8469936efac1d3eecf2193 SHA-256: 1929a5e0ed78ee801f704512837a44efceeb99e101589b4d8e3352bd0f0d3b2f
244 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to disposable hosting or redirectors, indicating a link farm designed for phishing or malware distribution. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' specifically flags a URL leading to known malicious infrastructure. While no scripts were explicitly extracted, the nature of the link farm and the ClamAV detection suggest a phishing or trojan distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://dafemum.ru/strik?utm_term=how+to+reset+a+frozen+kindle In PDF document text
    • https://xuzizalebu.weebly.com/uploads/1/3/4/7/134772475/vodasutuboxezo.pdfIn PDF document text
    • https://vokarojunez.weebly.com/uploads/1/3/2/6/132696330/xizaligojowepebevoba.pdfIn PDF document text
    • https://povefedonigo.weebly.com/uploads/1/3/1/6/131637150/6643991.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490377/normal_6007428268a40.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459324/normal_5fd26265a6495.pdfIn PDF document text
    • https://kigodebilak.weebly.com/uploads/1/3/5/2/135297846/gexet-pijeparurenos-kavagurozeza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446399/normal_601ee6834b62d.pdfIn PDF document text
    • http://balifruit.com/20929254809tyyaa.pdfIn PDF document text
    • http://themarkuzmusic.com/the_power_of_one_penny_reynolds1q7mj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463306/normal_603546a798aeb.pdfIn PDF document text
    • https://fuxarudoniw.weebly.com/uploads/1/3/5/3/135350341/vazenag.pdfIn PDF document text
    • https://kagesurofuzesik.weebly.com/uploads/1/3/5/3/135303772/d0ffa99.pdfIn PDF document text
    • http://natikolom.site/dragon_ball_z_goku_vs_android_18k43xk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450350/normal_601bfc4a384cc.pdfIn PDF document text
    • https://fotelosalif.weebly.com/uploads/1/3/4/4/134463398/tukofigibomesig.pdfIn PDF document text
    • http://podjem2.club/xefeketibakemc9zn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zebepojeguxeb.epizy.com/11430604681.pdfIn PDF document text
    • http://gesesasogibigaw.rf.gd/bible_app_good_news.pdfIn PDF document text
    • http://livukuxuperum.epizy.com/brisbane_tv_guide_motogp.pdfIn PDF document text
    • http://timaroxakex.epizy.com/jee_main_2016_marks_vs_rank.pdfIn PDF document text
    • http://lanadofebanubod.epizy.com/wotesefepebid.pdfIn PDF document text
    • http://bopadem.rf.gd/interior_designer_near_me_uk.pdfIn PDF document text
    • http://telebil.rf.gd/74612334570.pdfIn PDF document text
    • http://nawatelobuj.rf.gd/building_electrical_maintenance_manual.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_off0000f9b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9B2 5068 bytes
SHA-256: 814f9f053f6bcda9adf0b091552330d136c9f1a77e340a548409966c47c42203
font_01_sfnt_off00010b16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B16 11124 bytes
SHA-256: aef7dc795b2ecf7de5b2ab4cfec0f4226fe88c9c31bce12e1bd2b919911bc947