Malicious PDF — malware analysis report

Static analysis result for SHA-256 7356b4d926e40d4e…

MALICIOUS

PDF

70.0 KB Created: 2021-03-15 01:49:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e1e116da37a69dfaa6db57681a4d0bf SHA-1: f0ce5efe4ed0e6c9ee069c637cb10094c4208fe9 SHA-256: 7356b4d926e40d4eda645a8b65bd19e8369f720921fb9a0f250264053e8a92c0
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a malicious domain, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to redirect the user to a harmful site, potentially as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://dugedepap.ru/strik?utm_term=magic+chef+mini+refrigerator+replacement+parts
    • https://xuwogufovesuvem.weebly.com/uploads/1/3/1/4/131406895/feb1cc86cb149b.pdf
    • http://bigojojodun.iblogger.org/latest_cpr_guidelines_australia.pdf
    • http://wuxabikizumir.22web.org/good_food_guide_top_50_2018.pdf
    • https://lepepapiminokuj.weebly.com/uploads/1/3/4/4/134493398/2198171.pdf
    • https://polaposegit.weebly.com/uploads/1/3/4/5/134591324/rasag-pagibazum-duwifexo.pdf
    • http://akmurzina.com/sexefudozefijelipojimowe05jlk.pdf
    • https://static.s123-cdn-static.com/uploads/4481422/normal_5ffe46c11f44f.pdf
    • http://lusudebela.iblogger.org/18921116641.pdf
    • http://hr-insider.com/movie_and_tv_series_er_apkpvpip.pdf
    • https://wotowabe.weebly.com/uploads/1/3/4/6/134688823/duwaguzuj-lusoriponamagi.pdf
    • https://cdn-cms.f-static.net/uploads/4445326/normal_5fd6976a20d1a.pdf
    • https://cdn-cms.f-static.net/uploads/4383702/normal_600be173349a1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tifijawubizomed.epizy.com/kusapaganep.pdf
    • http://gajulofuva.epizy.com/cuisinart_dbm-8_supreme_grind_automatic_burr_mill_costco.pdf
    • http://zobujenogubate.rf.gd/uialertcontroller_action_sheet_example_swift.pdf
    • https://uploads.strikinglycdn.com/files/1e50d58c-327f-4d25-a039-7cc9b26adc26/nosumemifiri.pdf
    • https://uploads.strikinglycdn.com/files/d4b8d445-1030-41a1-8180-eca800ff2b45/gefeg.pdf
    • http://turojupa.epizy.com/21936670981.pdf
    • http://rolozipufulelo.rf.gd/3875770350.pdf
    • http://wowadowir.epizy.com/bulb_on_image.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2ae.bin
0d3307054a8008d2a6bfe1817fbd6f737ac032c414b82b048ef0efda289d2e5d
pdf-font-stream PDF embedded font (sfnt) at offset 0xD2AE 5436 bytes
font_01_sfnt_off0000e513.bin
6cb9e08eab641f986ab829523dd8654580a22c15b870716768c58787359117f7
pdf-font-stream PDF embedded font (sfnt) at offset 0xE513 10912 bytes