Malicious PDF — malware analysis report

Static analysis result for SHA-256 29e5a877a082a0e0…

MALICIOUS

PDF

75.2 KB Created: 2021-01-09 06:30:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 489a77cf57ef8dee9659bb9ad5dfeeb7 SHA-1: d160001bf23a123db3b74e2bde9a85d624f57126 SHA-256: 29e5a877a082a0e02554f8c0e0578885cf540b15826b1b3b0ed8c8a0c9a6778e
244 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of embedded links, many pointing to disposable hosting or redirector services, suggesting a link farm designed to distribute phishing content or malware. The document body, though heavily obfuscated, contains text related to "Pear mail manual install", which likely serves as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://ggtraff.ru/123?utm_term=pear+mail+manual+install In PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/kojurufilufopimob.pdfIn PDF document text
    • https://posenumu.weebly.com/uploads/1/3/0/7/130776111/veloz.pdfIn PDF document text
    • https://cdn.sqhk.co/mebereserab/jQa0het/shark_attacks_maui_kaanapali_beach.pdfIn PDF document text
    • https://wagezulixi.weebly.com/uploads/1/3/2/6/132695300/tenodibipunupap.pdfIn PDF document text
    • https://vugiwaxe.weebly.com/uploads/1/3/4/7/134739196/sonozetotozakapevod.pdfIn PDF document text
    • https://cdn.sqhk.co/lazujanaziri/hCszjef/mukotaxufekezezibap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366366/normal_5f98607785a5f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466676/normal_5fdf8d965b5a2.pdfIn PDF document text
    • https://lufisadoxusixa.weebly.com/uploads/1/3/4/5/134583632/seseb.pdfIn PDF document text
    • https://cdn.sqhk.co/simizekovogi/idMttQr/39623161582.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411490/normal_5fcb2d139d3cb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1959714d-d944-4761-80ca-fa8d7ecbb44a/35796385071.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d2b0786-031c-4147-96d1-9c1c0fa36c9d/31740724218.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be5fe22c-91c3-47cc-9a9c-fa1f0d8a634d/3201580620.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_off0000e7c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C7 4832 bytes
SHA-256: 3c79f2032b1984e54f794cd8b9d0ba8a26fb37524891ed22a4057fa09238094e
font_01_sfnt_off0000f815.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF815 12276 bytes
SHA-256: 25a44bb13e953bda439f9e5a86ce8f29c2f9b881b552ece5466ed51cae955392

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