Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdf868fd67fc8ec3…

MALICIOUS

PDF

80.2 KB Created: 2020-12-03 22:52:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 9df2a308c821ff67a9e3c8baeee01ee8 SHA-1: 9cc6a32a1413b22540d8ac59bb7c94ae0e4a8aa0 SHA-256: bdf868fd67fc8ec3bbaef9251e1fe9b4de0a385d06e9a7edcbea3871f63156be
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to 'traffnew.ru', which is highly indicative of a phishing attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to lure users to a malicious site, likely for credential harvesting or further malware delivery.

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/aws?utm_term=29+states+and+capitals+of+india PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4477376/normal_5fc20dbf15ebb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384483/normal_5f92e1141b090.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413838/normal_5f9767099441b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479254/normal_5fc8751046023.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417030/normal_5f9b48769659d.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/5fc14892f9866f3fd2d6f995/t/5fc3eda5e18c5c478e74c779/1606675877803/pizagesudapoveduzajodiw.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1b24012facd59ceb28ac7/t/5fc5e5824e98326c02dd1e3b/1606804867647/peter_pan_monologue.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4e10e2e34347c705dc52c/t/5fc5267c9b1ed035388274d5/1606755964494/medicate_gabbie_hanna_guitar_chords.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e4f4836-bcd3-44e7-8c9a-39ca8d1e5173/xuramudoniziwuguwa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e9cf979-c7a6-43c6-b2d8-cbf2a5a95cdd/57972249719.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc006d0104edf1d777bfbd4/t/5fc17088f8cdb769c619e47f/1606512776931/robalozi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf48bee6d49a06bb87db25/1606371518998/11446504036.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd06ffdae50a014588a26a/1606223616167/nuboxoladowebososer.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_off0000fcc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC1 5248 bytes
SHA-256: dffbb457f690bbd3f0383ee90872d09e0c3fa6d581da0d5afa67e9b817ebc178
font_01_sfnt_off00010eb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EB4 11360 bytes
SHA-256: 22415a79eee48d6ace2c8b986b280b29c86ca554c58525e13bdddb61fe1faece

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