Malicious PDF — malware analysis report

Static analysis result for SHA-256 95bc25e6d64165d8…

MALICIOUS

PDF

79.7 KB Created: 2021-03-05 09:40:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 55f29e45c57dbcfa691293a529a59b94 SHA-1: 3b6ee38f78a5a20677df1df9b3b55db01dfce8a6 SHA-256: 95bc25e6d64165d865a365cce75dc6fa7e358078c8b24d37ed6d29e438c3c587
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9995

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://pelibifir.ru/aws?utm_term=standard+of+excellence+book+1+clarinet+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476010/normal_5fd5f4c92522d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477408/normal_6041d0ab3dacd.pdfIn PDF document text
    • http://goladelexugezi.sportsontheweb.net/40666330617.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371505/normal_601fcbfbe3dbd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390056/normal_6002faeb32c28.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453560/normal_5ff6bda30acee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465392/normal_5fe58e56ea9f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402960/normal_60286454a3e4e.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://s3.amazonaws.com/metakibeme/72117541199.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/diagnostic_imaging_obstetrics_3rd_edition.pdfIn PDF document text
    • http://gizixaxeviduf.myartsonline.com/the_metamorphosis_short_plot_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/jarusuxa.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/microsoft_net_framework_4._6_1_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/ginger_grammar_checker_free_for_android.pdfIn PDF document text
    • http://ximuxulizi.myartsonline.com/the_unit_girl_group_name.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8073a400-1fff-42e4-81bf-7144e5f92136/81077492528.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7d9334b-3815-4e0f-8361-5a9e7e101579/timex_weekender_chronograph_40mm_watch_review.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/section_8_nj_income_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/tatenim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1eeecb2-f3b8-4b86-b247-3e3cb49f665f/best_flag_football_drills_for_8_year_olds.pdfIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/blade_master_mod_apk_unlimited_money.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/jewish_symbols_worksheet.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_off0000ed29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED29 5184 bytes
SHA-256: 5a0361fdd2cb716085c13cd4a0bb99189dca96b5bc2a7857027a875b7295cea8
font_01_sfnt_off0000fed3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFED3 10496 bytes
SHA-256: 1dbf433cb9c1cdd75350283975da4b7f69c813f2f2f2d149c8661be573200050
font_02_sfnt_off000122d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122D7 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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