Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b2239bd233894cf…

MALICIOUS

PDF

75.3 KB Created: 2021-02-17 03:47:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 05ebebfc5c9871a64e25f21026bb83f8 SHA-1: 97d2138af2d9ae736f9f9ffc0ffc24b09eb8c4f5 SHA-256: 5b2239bd233894cf130810d10844e9334e72b526659471874acc1e58f41f8525
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, and numerous other URLs are present within the document, suggesting a phishing or credential harvesting attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the download or redirection to malicious content.

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://bologen.ru/123?utm_term=how+to+get+an+emergency+doctor+note+for+work PDF link annotation
    • https://cdn.sqhk.co/salijuvam/jbfjbIi/skater_xl_maps_ps4.pdfIn PDF document text
    • https://cdn.sqhk.co/juxajomuz/iy6yjcF/the_maze_runner_book_1_amazon.pdfIn PDF document text
    • http://ductsunlimitedins.com/switzerland_visa_lottery_application_formcjt1h.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412999/normal_602c5f1253c67.pdfIn PDF document text
    • https://cdn.sqhk.co/birenejar/Khajcu0/hashtags_for_tiktok_get_views_followers_likes.pdfIn PDF document text
    • http://igonlinesupport.com/henkaku_enso_3._65_guiderfu0a.pdfIn PDF document text
    • https://cdn.sqhk.co/nupumusu/0XrkgeH/zuledopazajowote.pdfIn PDF document text
    • http://small-italy.space/49705511092z9ijs.pdfIn PDF document text
    • https://cdn.sqhk.co/gupetipek/wuEjeeo/ocotillo_wells_superstition_map.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480170/normal_6023b04bcc17b.pdfIn PDF document text
    • http://fastpysystem.online/xizubukixxb7n1.pdfIn PDF document text
    • https://cdn.sqhk.co/vipujitebiki/9Vighbu/pilot_jobs_logan_utah.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414342/normal_5fde5cef3900b.pdfIn PDF document text
    • https://cdn.sqhk.co/jeforije/Wsih8cE/veronica_mars_marshmallow.pdfIn PDF document text
    • https://cdn.sqhk.co/xixujipum/hLpVGsX/kipilalepe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e91b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE91B 5352 bytes
SHA-256: de255a2098e8419c0b006586d9a570bfa9af1dc97ab4de057cc5f4ef79575530
font_01_sfnt_off0000fb58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB58 10744 bytes
SHA-256: 4750e75631109cb960a7a5ac381c1e76a6ac95ade5513c92773b00a082bc505c