Malicious PDF — malware analysis report

Static analysis result for SHA-256 a33d1d57d134f0c6…

MALICIOUS

PDF

71.1 KB Created: 2020-12-23 09:58:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 534a5ae0bb41bd6cb15b368797211671 SHA-1: 5d0427649ba4c0026d56238346c928035b3641e4 SHA-256: a33d1d57d134f0c6e098c2871a6004160f64b23a352683cdde192779853ec746
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to reference 'Minecraft wonderful wands mod 1.12.2', suggesting a lure to trick users into downloading a malicious file.

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://trafftec.ru/strik?utm_term=minecraft+wonderful+wands+mod+1.+12.+2 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4401989/normal_5f986dd22ada2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410954/normal_5faa6070251a3.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
    • https://static1.squarespace.com/static/5fc5700ff7cf8c754049529a/t/5fd18f0987bef85997e7bd63/1607569162932/cowboys_and_zombies_apk_mod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3485a22-c8d1-4e91-8c45-cc6c1887bae0/14013628678.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc64fea085bf90c0e22058c/t/5fcc88f98a55f2188b716480/1607239929609/mexatijozevowevebin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1839092-3c5c-4cb1-ae35-f1f226adad97/xogetizarizeb.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc547c8c6229360ecc9c624/t/5fceb1d47222f03c23ccd4c8/1607381460871/golasemakoxegozalatadug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fe38a54-cd7c-496f-8775-f89a358ec4e8/2000_jetta_vr6_firing_order.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc11c6aec917750a3d920aa/t/5fccf0126f0099009e64bd6c/1607266322921/led_pinball_leg_protectors.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/the_power_of_accepting_yourself.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fe2724ec2b5c738822c4fa7/t/5fe2d984b47c395086fa8b9c/1608702341753/gixinulularavirudelil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/075540ef-4c99-42a3-a671-4670d2cba461/service_level_agreement_example_project_management.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc51ee2405d5340f344f969/t/5fd654f7b1c3f31c7a7f6d82/1607881992027/50309150585.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d65d495-aa0b-4227-8e26-c1d2525fbb07/lomifadisenokerezunufeli.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_off0000ccb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCB6 5360 bytes
SHA-256: c82f739f5f3848bd9861eee0a70314ab5691348278b5c505b714de5808b7cbfe
font_01_sfnt_off0000dee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE9 10152 bytes
SHA-256: ea8c153d34d68c7724f1f44514f6ee0fd543c8e479dd32bac8196d9f49e19c30
font_02_sfnt_off00010193.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10193 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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