Malicious PDF — malware analysis report

Static analysis result for SHA-256 09e148b517488a9b…

MALICIOUS

PDF

72.5 KB Created: 2021-02-17 07:53:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 6049e9c33f27792b122b042a8153c691 SHA-1: bc66984250e27c20a8eecb2c1697941a639d5f2b SHA-256: 09e148b517488a9bf19ebe4af4cf5800559b32a8491f1d17573c0b0eca0be015
196 Risk Score

Malware Insights

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

This PDF file was identified as malicious by multiple heuristics and an ML classifier. It contains a link farm and a redirector URL, 'https://seumenha.ru/strik?utm_term=harbor+breeze+saratoga+ii+remote', which likely leads to a phishing or malware distribution site. The PDF structure and embedded content suggest an attempt to exploit vulnerabilities or trick the user into visiting malicious external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://seumenha.ru/strik?utm_term=harbor+breeze+saratoga+ii+remote PDF link annotation
    • https://telogedibosujo.weebly.com/uploads/1/3/1/4/131438044/2624806.pdfIn PDF document text
    • https://tibiwurab.weebly.com/uploads/1/3/2/6/132695994/nazinemeropel-bogepoxe-kogamenewi-jifif.pdfIn PDF document text
    • https://cdn.sqhk.co/daviluzabidi/jbigxgj/toxew.pdfIn PDF document text
    • https://zunenevalomedo.weebly.com/uploads/1/3/4/8/134855990/9173408.pdfIn PDF document text
    • https://xusofudubivo.weebly.com/uploads/1/3/0/7/130775679/67354e.pdfIn PDF document text
    • https://tekuxarutupun.weebly.com/uploads/1/3/0/7/130775258/monoguwup_zakagejulofudu_matoje.pdfIn PDF document text
    • http://witotikumuw.22web.org/soundcloud_er_free_firefox.pdfIn PDF document text
    • https://wegidakalulat.weebly.com/uploads/1/3/5/3/135337254/feda899f9a72423.pdfIn PDF document text
    • https://cdn.sqhk.co/murajefovel/K2RU5gc/wordans_reviews_uk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/nawiriv.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/quantum_field_theory_drive.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/vowivaluxowa.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/rukifo.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/recycle_bin_program.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/graphing_logarithmic_functions_worksheet_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/simple_email_signature_html_template.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_off0000e01b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01B 5124 bytes
SHA-256: bc135e44545d5db154493c1b03c5fcf47f7972185032c66911e5302ce96b9e2e
font_01_sfnt_off0000f175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF175 10460 bytes
SHA-256: 6c7e6dde5d16eea42763aa66f8bf5ffcbff2e8c9768e67a57ba92d7501f09c1a

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