Malicious PDF — malware analysis report

Static analysis result for SHA-256 6989835dfc1f594c…

MALICIOUS

PDF

67.6 KB Created: 2020-11-11 09:21:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: d4aaeb09fb0d5ac4dbc03172c1c47596 SHA-1: 1cc9e10457898efe109086c0518f1932bbda2069 SHA-256: 6989835dfc1f594c55c1f9068f28ee4b60427f5c63b6782059c6706cd8f2c54b
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to 'trafftec.ru', which is likely a phishing lure related to 'alexa show manual'. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for phishing or malware distribution.

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://trafftec.ru/strik?keyword=alexa+show+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454432/normal_5fa4810e39d0f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386606/normal_5f99b536df775.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368474/normal_5f87f7b2452ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407986/normal_5f9d281d16fcb.pdfIn PDF document text
    • https://bevugatumuga.weebly.com/uploads/1/3/4/3/134316863/dodexixu_vemezidepisod_wokapixene.pdfIn PDF document text
    • https://welofubevi.weebly.com/uploads/1/3/1/8/131856084/6172502.pdfIn PDF document text
    • https://gulijigomun.weebly.com/uploads/1/3/4/3/134350957/5342261.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380869/normal_5f92175a18c30.pdfIn PDF document text
    • https://kexazupaxi.weebly.com/uploads/1/3/3/9/133997339/pazejer.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/gaxuremewuger/zazutaxafoxava.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71ab3433-9ef6-4c70-b5a1-c72195ed5e7f/old_school_new_body_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c45e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC45E 4976 bytes
SHA-256: 49c8c6f40f1fd2b007772b733322f9561dcafc2bacfba49ec5e3de65db145a11
font_01_sfnt_off0000d532.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD532 2176 bytes
SHA-256: eae2cb0efdd188b8fd9a7dc2beb91e40380746db97bdd6b6e6bf36aeaee0ea28
font_02_sfnt_off0000deb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB6 10188 bytes
SHA-256: de1f9fc9cd041f5ecd19632acac82552b9c0886b76c31ae273030418e7441fe9