Malicious PDF — malware analysis report

Static analysis result for SHA-256 44a01372d3147e1b…

MALICIOUS

PDF

77.3 KB Created: 2021-03-25 16:25:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e49f9730e53325364d77900283a7236c SHA-1: 13e590542b0a8d2b01fdee99ccb28454e9e4cc24 SHA-256: 44a01372d3147e1bd7580b03afa54429d15dbf1df24018255fe5c3e3a1be7cf8
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, likely intended to deliver a payload or redirect the user to a phishing site. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit vulnerabilities or trick users into visiting malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://ponafet.ru/strik?utm_term=draconomicon+d%2526d+3.5+ita
    • http://vevebopawo.mywebcommunity.org/corporate_finance_salary_progression_reddit.pdf
    • https://cdn-cms.f-static.net/uploads/4446500/normal_6019a95b71bf3.pdf
    • https://cdn-cms.f-static.net/uploads/4417817/normal_605a42bf9b034.pdf
    • https://nonemofolovexuv.weebly.com/uploads/1/3/0/8/130874593/xatemenosegit-sokavi-begivil-rejupi.pdf
    • http://goligofalu.medianewsonline.com/4404500935.pdf
    • https://cdn.sqhk.co/kivipemo/CFgdiND/wobokosomapodotiw.pdf
    • http://mitedujonajezed.scienceontheweb.net/47613422261.pdf
    • https://cdn-cms.f-static.net/uploads/4384039/normal_6056ac1f97cd0.pdf
    • http://boxijogirexu.medianewsonline.com/where_to_buy_blood_bowl_miniatures.pdf
    • http://lagulesuko.medianewsonline.com/66457351589.pdf
    • https://janonezofeto.weebly.com/uploads/1/3/4/6/134664798/tajanig.pdf
    • https://cdn.sqhk.co/pumapajewa/didOEtv/doraemon_adventure_game_apk.pdf
    • http://lajulufubugo.22web.org/new_krishna_bhajan_ringtone_free.pdf
    • http://kobazugipodiv.medianewsonline.com/speaking_english_course_free_download.pdf
    • https://static.s123-cdn-static.com/uploads/4463529/normal_5ff8a4a9baf40.pdf
    • http://zitirisiz.mywebcommunity.org/little_shop_of_horrors_musical_cd.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nazifaba.rf.gd/7267415523.pdf
    • http://rukosivujuxu.atwebpages.com/tuxore.pdf
    • http://kikodanaso.epizy.com/pakuwonejutogi.pdf
    • http://sogurorirerew.onlinewebshop.net/business_writing_today_3rd_edition.pdf
    • http://netupabajezi.rf.gd/biological_science_3rd_edition_free.pdf
    • http://zapizuw.rf.gd/burlesque_performance_chinese.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_off0000f1a2.bin
ad1f1b5d2bcd20feb49c8abc2f6abc88ad16f454fbe63366d445e044763e101b
pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A2 4872 bytes
font_01_sfnt_off0001021c.bin
b13c1eb5c2eda63f87c1f3d6414a93596918c1bc50e79460b4bf18a34785f516
pdf-font-stream PDF embedded font (sfnt) at offset 0x1021C 11100 bytes