Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8995e0274d55be5…

MALICIOUS

PDF

72.3 KB Created: 2020-12-19 19:00:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: a0da49cd942d7ae8897b7faa1b61de00 SHA-1: bbffad0252d5fc27860d10cf2dad34293bbb2a4e SHA-256: b8995e0274d55be5aaf76a2d57877aec83efa9683e28682023d4c2b541b314ee
164 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document body and extracted URLs suggest a phishing lure, specifically advertising a hack for 'Clash of Clans' to entice users to click on external links. The presence of numerous external links, including one pointing to 'trafftec.ru', further supports this phishing pretext.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://trafftec.ru/strik?utm_term=clash+of+clans+hack+apk+free+download+for+android+no+root PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387218/normal_5f9d6a19d6ad9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392452/normal_5fd314f0488fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389568/normal_5fdc5f78ceb3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381287/normal_5fa7f036e1633.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383137/normal_5f9109e2cac06.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455916/normal_5fb5e54bb8481.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418379/normal_5fbc0903ef2dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365638/normal_5fa2eaa6994b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426062/normal_5fd1ee752e42f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365539/normal_5fb7e20a4a8d4.pdfIn PDF document text
    • https://zejaxosadakawur.weebly.com/uploads/1/3/4/3/134372542/wosefa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4d3c9d793648408474b5/1606372669061/madina_book_2_sharah.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc791dd6879d031da12c5b5/t/5fccb60fd336b863f0bebd46/1607251480243/91747796175.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCCA 5304 bytes
SHA-256: b2d411091479185d1157c307f024db52c521aec884cf2c138e507deb8a7f7bef
font_01_sfnt_off0000eedf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEDF 10880 bytes
SHA-256: 96168f5a8aa660bde8726c2d6a8e4c276f30fd18e835a23a2189074d175aa3df

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