Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7191164fe48c1f1…

MALICIOUS

PDF

70.7 KB Created: 2021-03-02 17:14:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: c589a057a654b125f96cfcc601bec466 SHA-1: 5988ea269e86d899b6804493a5738c459385a2c8 SHA-256: d7191164fe48c1f18721de7a9691d7caf62d038ca4501eed27e9bcbb4bf6c6c4
156 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified as a PDF link farm. The primary URL, https://leonvi.ru/123?utm_term=how+much+does+a+real+10ft+christmas+tree+cost, suggests a potential phishing or SEO manipulation tactic. While no scripts were explicitly extracted, the PDF structure and the presence of numerous external URIs, coupled with ML and ClamAV detections, strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • 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://leonvi.ru/123?utm_term=how+much+does+a+real+10ft+christmas+tree+cost PDF link annotation
    • http://solent.bar/aashiq_awara_full_movie_mkv1q4tk.pdfIn PDF document text
    • http://tafugegajotu.mygamesonline.org/dunagutaditapabal.pdfIn PDF document text
    • https://futinenapol.weebly.com/uploads/1/3/1/4/131438538/sibajorutak.pdfIn PDF document text
    • http://zovofuti.mygamesonline.org/56245422850.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/wokesabisevo/zixaforukilunopeli.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/asus_rt-ac66u_factory_reset_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/mekonulegipero/36105688539.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/nuxajebajawozigoban.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/bonoduma.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/45581640338.pdfIn PDF document text
    • http://nedizilunok.myartsonline.com/nidiwuxegosewubufewatuluw.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/eagle_american_flag_vector_free.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_off0000d6b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6B6 5508 bytes
SHA-256: d3094b5e1a821b2b3c93a432d76505feb68d7b991199771207d9a9a66728ac3a
font_01_sfnt_off0000e95b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE95B 10860 bytes
SHA-256: 5063cd4d4172897a24c600c70e69f2304dec85d61b537beff4c758ea0b95515c

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