Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d74588c5638bd7c…

MALICIOUS

PDF

67.7 KB Created: 2020-12-07 03:15:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c33890fa30b90fae711841e1e709c766 SHA-1: dcaf213c8c947b41866171407a88c5ab19e112be SHA-256: 7d74588c5638bd7cf5c96e3a12a918d5b543440fbe04b5d09e43d584cce3846d
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 0.9997

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://traffnew.ru/strik?utm_term=download+angel+beats+opening+mp3 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384142/normal_5f8c5ef3d6c85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371265/normal_5f988f178058e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401545/normal_5fac39003f74c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367005/normal_5f8d24ff74838.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415946/normal_5fb4d6fdbb4b5.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/5fbd03c072f8b574a0f450b6/1606222785204/93725982952.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/tivaduvopu.pdfIn PDF document text
    • https://s3.amazonaws.com/bolovopizonuki/wefiwe.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf64bb9b1ed03538d31b1b/1606378684447/jean_de_florette_english.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc52c9311f6a41984a1865c/t/5fc5fd1b9b1ed03538abdd79/1606810907596/pennsylvania_emergency_management_jobs.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc556b8a3bf4b14abc694f3/t/5fcaa5c6bd325b40b5dcf692/1607116240108/8943779152.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/fejijalajinalanopomunusij.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d900d26ff1194f736c6f/t/5fc146effa04221c714eaab8/1606502128709/famous_japanese_people.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bd93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD93 5580 bytes
SHA-256: 79d201f0ab8a82798ff9487bcbd0a2fb7be964fef8a7fa1f3919b426168d27ca
font_01_sfnt_off0000d08d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD08D 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off0000d91b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD91B 11252 bytes
SHA-256: d078213b19ecc5dec3800b42a9860734906e089845ffa8c28b22c6a571a6a653

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