Malicious PDF — malware analysis report

Static analysis result for SHA-256 a18658604dde9b46…

MALICIOUS

PDF

70.5 KB Created: 2021-06-07 08:21:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 6a2a2abfd0eb73b9804d118292d83cff SHA-1: 9ae1ea3510ea1f2c6f261f1e61896a63768182ec SHA-256: a18658604dde9b46ce5f68c3ba1e28a4c3718c67196b9154fea3fbda4ccf4e64
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://inwebjor.ru/pbw?utm_term=how+to+run+python+program+from+command+prompt PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4391009/normal_5fcf968b4b54d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475208/normal_60306a072ef01.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444370/normal_60435091a962a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418579/normal_5ffc8a7be0279.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491151/normal_604244c19876e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426060/normal_60bd60af15b24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455669/normal_60bcc74a3baa3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411696/normal_60027fac14324.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4379498/normal_60b4e0215eba0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412900/normal_606c30e057063.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4378152/normal_60b6bf823ad6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457839/normal_6014d4dbb1d2a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404122/normal_5ffccb2f8eab1.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4489264/normal_60b30bae4f99d.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/afb773ff-1e45-4215-b5d8-0877bfe97f1c/50838560260.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a190026-c0c9-48a7-a799-bb17a02eab36/mechanical_engineering_jobs_denver.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6e91b2c-0afb-45a0-8b4d-2b8442795ee5/1276596541.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d796679-e7ff-4061-852f-d8736f686b13/are_wendys_spicy_nuggets_dairy_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e9f8c89-c725-4338-b1ea-588d90030af2/66893397608.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_off0000d602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD602 5512 bytes
SHA-256: 97d2152bdffe3bb6284ef4c3b6454ced03811e1b711520b36f637ca94a162d13
font_01_sfnt_off0000e8b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B3 10740 bytes
SHA-256: b5deaf3c38d85236c203db1b4c2f6b8c47daa40b541a116a4cf68c8c6c60ecec

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