Malicious PDF — malware analysis report

Static analysis result for SHA-256 96d2edb1b34df8fc…

MALICIOUS

PDF

77.6 KB Created: 2021-03-30 13:30:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 4ad3fb5a4f8c90a24970fb3bc5e1a1a6 SHA-1: 417dfaba0be6fff5556f69d2bab97806a0f8fab3 SHA-256: 96d2edb1b34df8fcc2815427d9cd34f9ffe29f5ba03edcfb2f39ba92296a9b45
184 Risk Score

Malware Insights

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

The PDF contains multiple embedded links pointing to known malicious redirectors and disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a common phishing lure, likely intended to redirect users to a compromised site.

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
  • 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 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/123?utm_term=trombone+sheet+music+old+town+road In PDF document text
    • http://menformula.xyz/keto_diet_at_el_pollo_loco2dj14.pdfIn PDF document text
    • http://fabulouss.space/colosseum_ideo_guided2q7c.pdfIn PDF document text
    • http://sinelejijona.22web.org/59439657371.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469824/normal_5feaf6586ad3e.pdfIn PDF document text
    • http://saporik.scienceontheweb.net/aprendizajes_clave_curso_directivos.pdfIn PDF document text
    • https://cdn.sqhk.co/nisosawero/9ijSiij/dreamworld_deaths_coroner_report.pdfIn PDF document text
    • https://cdn.sqhk.co/rubogomuweme/iboWMJ6/ice_cream_birthday_cake_delivery_near_me.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497109/normal_6011adc12c553.pdfIn PDF document text
    • https://cdn.sqhk.co/resozasevej/5ibicgh/zusala.pdfIn PDF document text
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdfIn PDF document text
    • http://sendgrid-de.com/nalolomajazol4zk5.pdfIn PDF document text
    • https://tokunebejuz.weebly.com/uploads/1/3/4/3/134323577/xikuzipo_fumekudo.pdfIn PDF document text
    • https://bojurejid.weebly.com/uploads/1/3/4/8/134887271/10a96.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://bugenuvumap.atwebpages.com/molejisudilusitixamotasak.pdfIn PDF document text
    • http://nijupilunijar.rf.gd/dopibizirapowakojomed.pdfIn PDF document text
    • http://lugimes.epizy.com/maa_durga_amritwani_song.pdfIn PDF document text
    • http://xukokumo.myartsonline.com/fusionner_plusieurs_gratuit.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE480 5240 bytes
SHA-256: 1b3957e6f83c657ad8c52b2966f4a6a921464684616cc334379d2a4e3c5c194f
font_01_sfnt_off0000f620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF620 10792 bytes
SHA-256: efd7c2d7c6bd282a239af99ce1c1c388d4b9d7f5ab697ea02ac2e851f85d6492
font_02_sfnt_off00011af4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AF4 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

Open this report in the interactive analyzer, or submit your own file for analysis.