Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f061d584f878b32…

MALICIOUS

PDF

65.5 KB Created: 2021-03-18 16:09:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 693182f5070eea478b4ab600b3895d87 SHA-1: 8033f8e56942fd3a16b829c1eb198f7f5735225d SHA-256: 2f061d584f878b3290ef642a3dc45684f93b66fce22f28344d29564cc3f52be7
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://jumiwimov.ru/wix?keyword=oliver+piano+vocal+score+pdf PDF link annotation
    • https://cdn.sqhk.co/goworonol/hcs84Qe/world_war_1_and_2_deaths.pdfIn PDF document text
    • https://cdn.sqhk.co/pimepojuti/ihfBKHx/13628666739.pdfIn PDF document text
    • https://cdn.sqhk.co/sojuzafu/ajbjeOV/e_news_vector_logo.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/aRqp1Hy/download_meme_stickers_for_whatsapp_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/jitolado/hjca6ia/59395528346.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478132/normal_6020d02f103dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471513/normal_5fdfc64acb290.pdfIn PDF document text
    • https://cdn.sqhk.co/vovoritufi/NbgjQgj/aggiornamento_android_pie_s8_tim.pdfIn PDF document text
    • https://cdn.sqhk.co/povewepalu/eyjaiei/technology_education_certification.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f25ef69e-39a8-4183-ab16-106a67d95e25/what_is_the_concept_of_peace_in_islam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55926584-0ee2-4648-a1b7-9e472f3f1d88/tiwubipegivin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7adad27c-952c-4a3a-95e0-bcd3b37b2bbc/how_to_reset_a_galaxy_s6_that_wont_turn_on.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f763b00-92c7-4069-b743-241a98944560/77117772631.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f527c406-3fce-436a-aa4e-51d495b7bded/what_does_it_mean_to_peacefully_protest.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_off0000c1fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1FE 5236 bytes
SHA-256: cb9b8b3e9be6066580a2186d6a0578b9a719dee7bb3aa6a2279bf99eae32b29b
font_01_sfnt_off0000d3e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3E3 11004 bytes
SHA-256: 9cc00f54e9e2d77ec891216a67606f8b2b906393fb0dc17e100a6da834e2ff36