Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e9333c495f779de…

MALICIOUS

PDF

69.9 KB Created: 2020-12-30 15:46:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1653bea72a830cc2ffb4cd13df6ddacc SHA-1: 1b2c18007413949ecba43ecc59797dc1c273830b SHA-256: 3e9333c495f779de66998cc5dabd04329c2775da70b6f0e6c7bf08b5bff7744b
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 0.9996

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://trafffi.ru/strik?utm_term=dodge+action+3d+ios PDF link annotation
    • https://cdn.sqhk.co/kuruwoke/jaOiddV/apply_defence_job.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446490/normal_5fc59eee1619a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405945/normal_5fe0a7a33dc7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422392/normal_5fac300465541.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493891/normal_5fb2da7d7d5b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384483/normal_5f8e9037cfe35.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426816/normal_5fad5d1888b58.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/2ee7dbd2-3320-4376-89aa-e936075710e2/84170754844.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cfb6e1e-3f2e-441d-a79b-bc151cd86d5f/onamalu_telugu_movie_online_youku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8773d498-ad8e-4653-807f-2c7652b1b8e6/91315397954.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/vojodewemuzoboxoku.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 1

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bc88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC88 4932 bytes
SHA-256: 08154f4fd199c06ae61b63801175eea62e73153417884ade906aa3c163f723f2
font_01_sfnt_off0000cd56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD56 4568 bytes
SHA-256: 19783ea43b974a67f07748ccaaff30e0bf1842c8bc3a58b44fe5f1c843b73972
font_02_sfnt_off0000da6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA6F 10032 bytes
SHA-256: 31f9c92b16e5492359cb6d8eba9ddd1221fc659cf1f822cc136c1de5eb588318
font_03_sfnt_off0000fcbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBD 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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