Malicious PDF — malware analysis report

Static analysis result for SHA-256 be95d6937f981e74…

MALICIOUS

PDF

66.9 KB Created: 2021-04-06 00:15:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b6baf5a866bd132c25b8ab746d785cba SHA-1: 989949e83ccf39a464d768330ce0fd712cbe7515 SHA-256: be95d6937f981e748545b734cc23dd78885046a25844c4bd39318971b22f70f8
96 Risk Score

Malware Insights

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

The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains text related to 'divine healing', suggesting a lure to entice users to click the malicious link.

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://jacksth.ru/strik?utm_term=7+keys+to+divine+healing+by+kenneth+hagin+pdf
    • https://static.s123-cdn-static.com/uploads/4488100/normal_5fd08566bb2df.pdf
    • https://cdn-cms.f-static.net/uploads/4374364/normal_5fdbedd719453.pdf
    • https://cdn-cms.f-static.net/uploads/4418001/normal_605438237b51a.pdf
    • http://zegosuvavanow.22web.org/best_esl_placement_tests.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pepuzigupa.epizy.com/cambridge_vocabulary_for_ielts_advanced_free.pdf
    • http://totiwofosu.epizy.com/windows_10_reporting_wrong_folder_size.pdf
    • https://f61a8d15-835b-4c36-a3db-e4ead73ab13f.filesusr.com/ugd/e9f5f3_f0bd76fb2f304f05a546b5e47e3d388e.pdf?index=true
    • http://bobofipiki.epizy.com/fatewotosid.pdf
    • http://lonopisok.epizy.com/composer_require_phpoffice_phpspreadsheet.pdf
    • http://menutewewunidov.rf.gd/light_blast_projector_manual.pdf
    • http://fifumuwun.epizy.com/banglarbhumi_land_information_wb.pdf
    • http://jexaziled.rf.gd/age_of_sigmar_points.pdf
    • https://c7bff75e-0a19-4817-9d47-fca4cf08161b.filesusr.com/ugd/3b6424_35e2aa745a8841fda325d314ff61bc7a.pdf?index=true
    • http://pejuxex.rf.gd/37360182582.pdf
    • https://7e073981-ad1c-4081-8dc0-76946ba36063.filesusr.com/ugd/c4f63d_c875ca8701af41f980840e5cef053c47.pdf?index=true
    • http://xuresiru.epizy.com/archicad_15_tutorials_for_beginners.pdf
    • http://tofoxofifu.rf.gd/mockingjay_book_price.pdf
    • http://pewuzakij.epizy.com/baxuzekobox.pdf
    • http://vuginok.epizy.com/how_to_use_colored_pencils_correctly.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c733.bin
19824eb955fd4ca06263c3e24df884679afb4c0075d0dfda999b184ff2787296
pdf-font-stream PDF embedded font (sfnt) at offset 0xC733 5560 bytes
font_01_sfnt_off0000da39.bin
57068fb1f50146868def6052b60245f5fc7d475924855ee453a5d77dba320b7d
pdf-font-stream PDF embedded font (sfnt) at offset 0xDA39 10072 bytes