Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfd7e42e2a3b6d41…

MALICIOUS

PDF

67.8 KB Created: 2020-12-14 15:56:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 4a47f201e2614a68ea626fc3b1388c51 SHA-1: 9ccffc40a770dc1596a12ccf61f340fe1fb334f0 SHA-256: bfd7e42e2a3b6d41d5aea41528fcb7d02504d94cba420a9e003b592453b87e3e
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://trafftec.ru/strik?utm_term=translate+the+first+paragraph+of+the+declaration+of+independence PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374542/normal_5fae40aceff94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418796/normal_5f9917fcda96a.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/55143861-5cf2-49e8-b091-f7d39939e4d1/el_barco_de_mariposas.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/gifijazisakogexufafitek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88045fce-ce8a-4df0-81f6-0fcdae85460e/ronald_takaki_a_different_mirror_chapter_1_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eef9e56b-6216-48f6-a4fe-1bd0283f58fa/casting_a_spell_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/13877451017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/598f4ce9-0822-4f3a-ac46-61593944cde1/bofime.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7ab6bd64a3343a5fa0e5a/t/5fd14b03d279db5018a0b0e0/1607551748702/alien_isolation_last_survivor_hltb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd7203d8-e544-4efb-a079-36fac1649bf5/52747163064.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e148d955-1985-474d-ba50-e4c651c59e6a/61411578958.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83063dd2-31b7-4b5b-8fd4-004a32dd3086/pezibesoxenidixib.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcf43d3a3719f737323d3f8/t/5fd64b21102ca46975dfcd89/1607879462892/92210820318.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_off0000cae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAE7 5368 bytes
SHA-256: c79d9227876ab2180818ea5347a450e71a5baf8ccbb7884d3fbf41e5c3a1412f
font_01_sfnt_off0000dd22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD22 10172 bytes
SHA-256: 367887271a991e57ef8792f2e4b87ef24ed1e295a8f0b05bc27867e920d9f654