Malicious PDF — malware analysis report

Static analysis result for SHA-256 d15060bb8dc383e0…

MALICIOUS

PDF

77.1 KB Created: 2020-11-23 03:11:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 0c30f7085e2844072238696e813e9e07 SHA-1: d6777b911500eb05d4ca7ef7401b61123a6c056b SHA-256: d15060bb8dc383e04d111b88a08060e5faa51f1de6a6cebe257a39114c5876b9
214 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The ClamAV detection and ML classifier further support its malicious nature. Although no scripts were extracted, the presence of a malicious redirector link suggests an attempt to lead the user to a phishing or malware distribution 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 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.
  • 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://traffine.ru/123?utm_term=the+gangster+we+are+all+looking+for+goodreads In PDF document text
    • https://wefekexuse.weebly.com/uploads/1/3/4/6/134685634/botazilujowe.pdfIn PDF document text
    • https://tozugijojabam.weebly.com/uploads/1/3/4/6/134640227/wekapo_zitufomomomama_wekobokowi_jitor.pdfIn PDF document text
    • https://mejefarekobuk.weebly.com/uploads/1/3/4/3/134338461/029a8e2aab07d.pdfIn PDF document text
    • https://wofenexezut.weebly.com/uploads/1/3/4/3/134310974/xovedurapitosok_fazixonejupoz.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/zufojadibi/sunni_islamic_calendar_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3341a8aa-4b73-461c-9052-6362a5bcda4c/xutezavo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59aab4ef-dc25-4428-984f-2f7e4fdd373e/54906900723.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64ed5d84-77ad-4ad3-baba-a30dd3148a9c/gufigapil.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/gurusonimofak.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/jusogenukegadebimi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/041b7864-c501-4e23-9d3c-529980b37358/fazegoni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ea7ad88-3f47-4016-abe9-2f8f25da71b3/tokalizexerikarigigu.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_off0000edbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBE 5276 bytes
SHA-256: f8052b977fc67bda5213717e89185df0a3e21232065e3f2bcb806a302c1c9bb9
font_01_sfnt_off0000ffbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFBE 11468 bytes
SHA-256: 7338540b35bf90ec3963b5046348a06c7f932e8a77df7d49fbc5988433ad7f9a

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