Malicious PDF — malware analysis report

Static analysis result for SHA-256 482b093488792985…

MALICIOUS

PDF

68.4 KB Created: 2020-11-13 11:36:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 8a85841a9fafe7e134b97ebcc6a64279 SHA-1: ddc095019825a78b5dae5b878ba8f8bd48fee09b SHA-256: 482b093488792985898652676da571a34c94f44cf8418694191a22053787fbe1
96 Risk Score

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://trafftec.ru/123?utm_term=kitchen+utensils+worksheet PDF link annotation
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/varubixesew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405193/normal_5faaabb8bc5f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376404/normal_5f90d93234de4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381756/normal_5f91196bcc91f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386848/normal_5fadd2fbe88e8.pdfIn PDF document text
    • https://wexofele.weebly.com/uploads/1/3/4/6/134632346/vidudupi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495392/normal_5faaf04b5cbc6.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/bd96f459-11fb-45e2-a401-839ed89ad5b7/63042420993.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5848d2d2-81c6-422a-833e-da4d2f06df50/alfred_adler_theory_of_motivation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/097cb673-5173-43f8-a167-c685d501bbd6/4593247078.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83a1c958-9cde-471c-bc6c-56e5d4c2a4ac/87552719056.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c438ab33-dc71-4045-8bb4-72844acd44e3/87421847031.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_off0000ceb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB2 4800 bytes
SHA-256: 1e636674d3c7971dd3c716b4075b892141b1ee53385c2bfc30763e800fc92586
font_01_sfnt_off0000df16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF16 11084 bytes
SHA-256: 2af8c58d275a0b8bb5b94244c09e2e6b2540bfc1a145674338008678028cb055