Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ee4a95c02e1dec9…

MALICIOUS

PDF

65.9 KB Created: 2021-02-05 12:52:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: c8411f8d28bcc36e22c2e1a909482dfd SHA-1: 71c88c02005dd69f66ea15202ce63bbb2b0f658d SHA-256: 5ee4a95c02e1dec977ce77f29157b7c7de73612fcad3125b96e49a96077da2d6
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or scam attempt. It contains an embedded URL, https://druttle.ru/123?utm_term=colageina+10+pills, which is likely the primary lure. The document body, though heavily obfuscated, suggests a product advertisement for 'Colageina 10 pills'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/123?utm_term=colageina+10+pills PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370097/normal_5ff007ddb7cc3.pdfIn PDF document text
    • https://cdn.sqhk.co/dopuwene/ieggjiB/guluxorumesibokuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481170/normal_5fe69bdcd9c96.pdfIn PDF document text
    • https://cdn.sqhk.co/lotivadafe/EK8jihi/86200267644.pdfIn PDF document text
    • https://sunanineriputa.weebly.com/uploads/1/3/2/7/132740954/b7a433ed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419211/normal_5fddbe349bd6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370268/normal_5fdb79710485c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383147/normal_5fe1b64d23532.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389816/normal_5fdc1e7c043e4.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/lekizopiloref/golirexivebofewixivi.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/boggle_game_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/paranumeviliboxutokur.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_off0000c4b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4B2 4992 bytes
SHA-256: 5a6cda1e2c184c5b981012427090a84ee420c0cec1f7db1a251cd64d5a4b4fd5
font_01_sfnt_off0000d5c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C5 11024 bytes
SHA-256: ce8aa099c59aa05ae686ab2f0f89f12786972d7282bd21320cc843eb83d54c82