Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e1c5eaf936c89e7…

MALICIOUS

PDF

81.3 KB Created: 2021-03-18 05:55:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2e76dc370008213912bca53a3a8218dd SHA-1: 7330ef8f90233395ad6fd4d8c75b9e33f057b482 SHA-256: 5e1c5eaf936c89e751e00b659e2527b45227083cecbb9cef60b8ba9a968796f1
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an embedded URI pointing to 'soxebez.ru' suggests a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with a document designed to redirect users to malicious content.

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://soxebez.ru/wix?keyword=curtis+wall+street+carroll+ted+talk
    • http://masezigo.iblogger.org/how_to_charge_zoom_h1n.pdf
    • https://cdn.sqhk.co/litawoxelida/gdgjkii/peruretopovibevutagelebow.pdf
    • https://cdn.sqhk.co/rifibimilo/bjdggJ6/how_to_play_my_little_pony_ar_guide.pdf
    • http://4bochki.ru/enterprise_agile_transformation_coachnozk4.pdf
    • https://cdn.sqhk.co/jojewezalika/bjihihc/81005483925.pdf
    • http://kogitijupewe.iblogger.org/swim_with_the_sharks_without_being_eaten_alive_summary.pdf
    • https://cdn.sqhk.co/pabelewexo/fhcK1BM/wixaxudilaxub.pdf
    • https://cdn.sqhk.co/lexebogefaj/he4mW8e/74343866680.pdf
    • https://cdn.sqhk.co/zojixemem/hgtROge/kaxisixabi.pdf
    • https://cdn.sqhk.co/noligigibar/8L2ijf3/carrom_board_game_online_play_plonga.pdf
    • http://tamasolesodaj.mypressonline.com/podrcznik_do_angielskiego_dla_pocztkujcych.pdf
    • http://ropisunofo.mygamesonline.org/bivodasiwem.pdf
    • http://copyright-rules-help.com/xowepuferomegowaymly2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://seladetitogar.epizy.com/73130209724.pdf
    • http://kadizilurojiniz.onlinewebshop.net/4676917144.pdf
    • https://s3.amazonaws.com/magapeguwabe/emergency_surgery_guidelines.pdf
    • http://memapekoge.epizy.com/adjectives_order_worksheet.pdf
    • http://varoxekoduv.epizy.com/behmor_1600_plus_manual.pdf
    • https://s3.amazonaws.com/najubu/tugasajarifowumodub.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_off0000fe73.bin
3501bc3cc7bbb72e61ec0c4c150b0be4093b1f3059efe24b5f056b1e03a8ba83
pdf-font-stream PDF embedded font (sfnt) at offset 0xFE73 4992 bytes
font_01_sfnt_off00010f89.bin
8e98ad7f9d2cfac6e74c26acad4dfb9fed1adb3c1b9e0bb1f273c27916fa4588
pdf-font-stream PDF embedded font (sfnt) at offset 0x10F89 11900 bytes