Malicious PDF — malware analysis report

Static analysis result for SHA-256 e182f533467e6a73…

MALICIOUS

PDF

82.0 KB Created: 2020-12-02 05:59:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 47d7b2b7bc6a9b9f6c76ce487cae54e7 SHA-1: 2d17f4050d368fa8accf89a22bcc3c3010cda00e SHA-256: e182f533467e6a73870a024421ef81d8f6eb68d7fbb26c1f8a32fa27673ce7e2
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://traffset.ru/123?utm_term=star+wars+republic+commando+free+download+full+game PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454438/normal_5faf5d9a4f871.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490123/normal_5fb4e738bec85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448341/normal_5fa5d49567111.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426828/normal_5faec01f8a3ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365551/normal_5fc40cae65874.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365582/normal_5f877a864e1f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366980/normal_5fc3209ac6a8a.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/aed4b3f2-1106-4b8b-bb97-87041372c324/54969723286.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f31a65b-a4af-4a8e-ba61-7dd0f33b1cb4/case_files_family_medicine_5th_edition_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f989a1b-ba54-48ea-bdb2-c9713b9d97ca/have_yourself_a_merry_little_christm.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc100ee92c50b1a1e781c95/t/5fc14c64eaf37e3b64cc1a86/1606503525519/plants_vs_zombies_2_gems_hack.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd167979-5919-416b-9598-3c733885b94f/zabimemufiparopajugaruna.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_off000102c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102C0 5812 bytes
SHA-256: 67018a7429bc0f805ea45bd8b48e1d8a7b8ea4d540c04e68c85e1758f81f4510
font_01_sfnt_off00011680.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11680 10536 bytes
SHA-256: bea224b8d80b43139faebc8237761fe7fb7c2341ed89ae1e26e17e45be021402

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