Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf0d98420e0c9a57…

MALICIOUS

PDF

98.7 KB Created: 2021-02-24 23:52:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ed317358873c48be2000cf6ed2978fef SHA-1: 50f90c93379048456a97ce55cc4bf856e6fdab6d SHA-256: bf0d98420e0c9a57b0a538ac272c732088c490a6de2e831b59cf74ae8ee00381
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/wix?keyword=stubhub+or+ticketmaster+resale PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4447095/normal_5fca6b18079f3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466166/normal_5fcabb4eee151.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370307/normal_5fd28a481372f.pdfIn PDF document text
    • https://cdn.sqhk.co/jarogofef/gjMxrR0/betapen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420037/normal_602b3a8e6a131.pdfIn PDF document text
    • https://cdn.sqhk.co/bidamasegom/MMsjjj2/green_farm_3_para_pc_descargar_gratis.pdfIn PDF document text
    • https://cdn.sqhk.co/nowagenika/dge3sij/8206141527.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415291/normal_5fdf2d23cbb58.pdfIn PDF document text
    • https://cdn.sqhk.co/luxixumogez/Gicibhe/mountain_bike_accessories_for_sale.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380403/normal_5fffd90396237.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369331/normal_602e50778aa93.pdfIn PDF document text
    • https://cdn.sqhk.co/lapefuxolu/9iie1jg/vatinoremetisisiwez.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391893/normal_5ff13891bf901.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468837/normal_5fe61d81f38dc.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
    • http://jaxegug.rf.gd/31935930829.pdfIn PDF document text
    • http://vetuvadoxawiton.epizy.com/abduction_movie_free.pdfIn PDF document text
    • http://bemuvubovewe.epizy.com/26578703811.pdfIn PDF document text
    • http://titaleze.rf.gd/cbse_online_marksheet_correction.pdfIn PDF document text
    • http://nizapowedasa.rf.gd/imca_guidelines_for_dp_trials.pdfIn PDF document text
    • http://nadedeve.rf.gd/gidiwolizaziserop.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001377d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1377D 5120 bytes
SHA-256: 57e293bdb11c24d5ea29e76ab84acf50e70ed321e8780cd614a6694f23ad5af3
font_01_sfnt_off000148df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x148DF 11316 bytes
SHA-256: 71f0d827c4e1a6f87b7eabec9e3c2be29a0c8bb453156fdd6b16dd2f6440aab2
font_02_sfnt_off00016f45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16F45 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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