Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d81b25ebfb97b7b…

MALICIOUS

PDF

74.5 KB Created: 2021-03-02 03:37:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 8a81d0c7c0434fe6f80eb3bd32e685c2 SHA-1: 7eab5ccadbca2c5be918999b3a746ae7a83327ff SHA-256: 2d81b25ebfb97b7b1affc61561d091fe257de01a81899d4d31a1489b0ce058f5
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to a suspicious domain, likely intended to host a malicious payload or phishing content. The document body, though partially corrupted, contains text related to firearm ammunition, suggesting a lure to trick users into visiting the malicious URL.

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://xezojetit.ru/strik?utm_term=imr+4227+for+300+blackout+subsonic PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4460446/normal_5fff8207463dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470035/normal_5ff4a8062aca5.pdfIn PDF document text
    • https://cdn.sqhk.co/givesaxi/MyjhZhf/zomewudimoget.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416502/normal_603c2f26896c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386094/normal_602a8e1058189.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460231/normal_6008ed1bc8ea0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485322/normal_6021cbc7cbdd0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/dance_punjabi_song_video.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/79642786492.pdfIn PDF document text
    • http://wabalegawamiraj.rf.gd/role_of_a_volleyball_team_captain.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/84744127505.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/how_to_reset_firestick_controller.pdfIn PDF document text
    • http://lovenewaw.rf.gd/83592598963.pdfIn PDF document text
    • http://rodijegowufewap.epizy.com/44729589630.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/54400743485.pdfIn PDF document text
    • https://s3.amazonaws.com/vebogotexaf/brokerage_house_reports_on_eicher_motors.pdfIn PDF document text
    • http://vijixekezej.rf.gd/how_to_start_trading_forex.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_off0000e483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE483 5776 bytes
SHA-256: a0f3d2c76476ed0cbf6373fa16707e96e784b464c1f603e2037b8e34d261e5ab
font_01_sfnt_off0000f81a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF81A 10748 bytes
SHA-256: 5b4e4d6d68db8bdccc7afafc571b917047744bd133995872da6ebb729088e6f1

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