Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f2ad3f4ca520e7a…

MALICIOUS

PDF

98.1 KB Created: 2021-03-25 12:03:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: c496060ddd4f2e08a2552f95bc99874d SHA-1: 705fa1bb39b0930e20fbdfb8eee7ac8c47a6b3ae SHA-256: 6f2ad3f4ca520e7a241dfe3c65b681be1378dec30e1baa77cbad7faf326d3392
226 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of a phishing lure, specifically a remote-support tool pretext. It contains numerous external links, many pointing to disposable hosting, suggesting an attempt to distribute malicious content or redirect users to phishing sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the exploitation of the user's trust to install or connect to a remote-support tool.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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://fokemale.ru/strik?utm_term=does+ipod+nano+6+have+bluetooth PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405414/normal_605a8cfed4277.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462708/normal_605c361220fbe.pdfIn PDF document text
    • https://vinaribibivo.weebly.com/uploads/1/3/1/8/131871854/9934df01b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409606/normal_5fe84e0fa8226.pdfIn PDF document text
    • http://nunopasatipimav.medianewsonline.com/social_media_founders_list.pdfIn PDF document text
    • https://zosixilerav.weebly.com/uploads/1/3/1/8/131856356/7784572.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451927/normal_60243897be3e4.pdfIn PDF document text
    • https://gebejisidimi.weebly.com/uploads/1/3/5/3/135302949/sobeburego.pdfIn PDF document text
    • http://ferategaj.scienceontheweb.net/vegesavokelosarutabiro.pdfIn PDF document text
    • https://lixazasowab.weebly.com/uploads/1/3/4/5/134588429/xoroboxevoloseb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375087/normal_5fe851ca20f0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416490/normal_602932c58c22e.pdfIn PDF document text
    • https://xelegiri.weebly.com/uploads/1/3/4/4/134435730/6bf1050d.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
    • https://uploads.strikinglycdn.com/files/6c871ee8-f59a-41e9-a6ed-a195c8b8cd4a/tuck_everlasting_read_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c202f076-42b4-4acf-bd09-989ddfb56bc3/49357817071.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/mivejegivozudebage.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/5598717401.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/compare_and_contrast_chart_template_word.pdfIn PDF document text
    • http://juwukopegonamu.onlinewebshop.net/autodwg_to_dwg_converter_pro_2020_v3._9._1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e417268a-e309-43df-8ebf-39943e8f1b96/final_fantasy_tactics_war_of_the_lions_jobs_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/annales_brevet_maths_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f3cd128-e426-4039-8642-023ade6e590b/39530798178.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_off000132c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132C0 5188 bytes
SHA-256: 53ea6e8cb6e4b98f23710cf6b8ff9d9fa2f48b803640db4d420a6b5646aad33c
font_01_sfnt_off0001445f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1445F 11324 bytes
SHA-256: dde0846a0d57d7506776997617c7ff941a44d116681464c52a003dea12f4962c
font_02_sfnt_off00016afa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16AFA 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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