Malicious PDF — malware analysis report

Static analysis result for SHA-256 17e7d1bcc4cd4d83…

MALICIOUS

PDF

66.5 KB Created: 2020-12-23 00:54:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: fafe4202e9ff50ccc2d98ca3e5cf59ed SHA-1: 1d6a6096ffe1d348a19b85f91ebf04f4b394babe SHA-256: 17e7d1bcc4cd4d83b1402ba2553db23d13e6847df8926ddb58945cb94cf97f57
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL that points to a suspicious domain, likely intended for phishing or malware distribution. The document body and metadata also contain references to this URL, reinforcing the phishing attempt.

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://traffnew.ru/123?utm_term=mini+pop+tarts+cereal PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387046/normal_5f9f0f1933d54.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370555/normal_5faf92d581109.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446263/normal_5fd7d2fde403a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376606/normal_5f8e6b914db80.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381287/normal_5fce791237301.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374682/normal_5f92279a4fcbb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365542/normal_5f8e3bdcd92e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403543/normal_5fa6c8bc75059.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463298/normal_5fa4c9eaae4de.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/pozokimepe/fofolepagonufasan.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/rutagefuwo.pdfIn PDF document text
    • https://s3.amazonaws.com/nitirew/464655566.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/identity_v_apk_only.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/47530453934.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/kilabogebavesobevisigumu.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_off0000c986.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC986 4932 bytes
SHA-256: 52b015d7b9adbc8cae4f87318a92b76c48547423b596ab2dd1ca112f3c4af237
font_01_sfnt_off0000da64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA64 10232 bytes
SHA-256: ac9d1b7104a34012d814412e1f8f917de003e8e246702c5a15220d2109b44c86