Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cbe47cfd5dc7977…

MALICIOUS

PDF

66.1 KB Created: 2020-12-18 02:27:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 6c8e8a15521e8343ba863a374b19c00c SHA-1: 6c878ee6fa40647881bc1ccfa57cefb57730a329 SHA-256: 7cbe47cfd5dc7977f80e867f777ec3bdd7a5c55ea16a4f59ae617f997daaa3e0
96 Risk Score

Malware Insights

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

This PDF file contains an embedded URI pointing to a suspicious domain, identified by ClamAV as a phishing trojan. The ML classifier also flagged it with high confidence. The document body, though heavily obfuscated, appears to contain text related to 'licensed reflexologist', likely a lure to encourage clicks on the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafffe.ru/strik?utm_term=licensed+reflexologist+near+me PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4498983/normal_5fda87e03abc1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486997/normal_5fc952c7bc853.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/5fbe286ff3de5e49b52dd449/1606297711759/89689237099.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/arreter_de_fumer_tout_de_suite_allen_carr.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23a6458a-237b-4b3e-bf31-426f3e9d074f/fufel.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5406c7d0c8f249d5d8b91/t/5fcd57f66f0099009e748812/1607292918725/38734196173.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0eba583b-4fd3-4fa0-80f1-6a7701ecd31f/mifflin_township_ohio.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/65377497340.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e4891c5-29e1-4140-a115-bd58e5f696fc/84902402750.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc56c853398ff75154c3188/t/5fd6dc5f481cfa31add9f8d0/1607916640238/subomorideti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6e5b09a-6a46-43f1-a7ed-2e7b1f37687d/dometic_manual_thermostat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f958a2e3-d9d7-4374-92ca-0133aa2edf61/36520161749.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/al_khwarizmi_books.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_off0000c5f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5F2 5352 bytes
SHA-256: aac2b4f092e5f46208283646683f1f04d1935cf9c8e337c9e2f050d31cf9d6a6
font_01_sfnt_off0000d818.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD818 10496 bytes
SHA-256: a23dd8d58184497b21b73d1d51c36b0197f79ae3e0e369e4cfc9dac9ac47eba4