Malicious PDF — malware analysis report

Static analysis result for SHA-256 60f747d2d3225ea8…

MALICIOUS

PDF

74.6 KB Created: 2021-04-21 19:41:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f1be8c1354d9c484ee34242b1e390418 SHA-1: d227483df3cb8b668dcb3b202bb19daf550957c5 SHA-256: 60f747d2d3225ea84093423d109ce61bbb2a75448b54a00a9bad01ce158cc78d
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'kuzutuzo.ru', which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://kuzutuzo.ru/strik?utm_term=reset+drum+counter+brother+hl-2240d
    • http://fozivot.mypressonline.com/gogodoxexomogupapases.pdf
    • http://gutprod.xyz/data_smart_switch_mobile_apkaxkw6.pdf
    • http://zonokiwuwagupu.getenjoyment.net/how_to_soft_reset_a_galaxy_s9.pdf
    • http://freedate18.xyz/heroic_kingdom_conflux_path887u7.pdf
    • http://fartook.online/mcgraw_hill_practice_act0vkxy.pdf
    • http://tendernes.ru/39926388289qs6w4.pdf
    • http://keepxufi.space/how_to_make_yourself_miserable_dan_greenburghnyr7.pdf
    • http://pubggaming.online/90563148324xeco9.pdf
    • http://bozesedixek.mywebcommunity.org/antologia_de_cuentos_chilenos.pdf
    • http://vamoktin.ru/restaurant_general_manager_salary_san_antonio_txq9sqy.pdf
    • http://liberum.sportsontheweb.net/viwekorixikop.pdf
    • http://xorimomupajo.scienceontheweb.net/biological_diversity_act.pdf
    • https://senekuzoje.weebly.com/uploads/1/3/5/9/135978249/tizagasinibola.pdf
    • https://fiwugepupuladav.weebly.com/uploads/1/3/4/7/134740110/fimubuxele.pdf
    • http://ig-copyrightnotice.com/negative_and_positive_connotation_for_oldc8rjk.pdf
    • https://pidolanapeg.weebly.com/uploads/1/3/0/8/130813957/8800226.pdf
    • http://telemprom.xyz/sous_le_ciel_de_paris_sheet_musicsokwk.pdf
    • https://merotulup.weebly.com/uploads/1/3/4/0/134000288/wutewun.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://e437b920-fa79-41d5-b67c-0ca059f4e77a.filesusr.com/ugd/d97c10_1fa954efa21243d8890ab4ccfad0b325.pdf?index=true
    • https://73af689e-4c80-4f62-99d3-7a886641ad81.filesusr.com/ugd/3b5dd9_49dadc68e7a04d22b0f958c0a6ffd12c.pdf?index=true
    • http://falalovoxiwada.epizy.com/mazezivasilawutizemuvemel.pdf
    • http://kololujes.rf.gd/tunaroxijanoru.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_off0000e5ec.bin
f12c31403f71dec0725024c271786e7ec6177b58f189cd1a9bc579fc6f3ee3b7
pdf-font-stream PDF embedded font (sfnt) at offset 0xE5EC 5512 bytes
font_01_sfnt_off0000f892.bin
ea9c459c1224bd8286559770c58925d966606fdacfc644932fb1fb5715c2a74f
pdf-font-stream PDF embedded font (sfnt) at offset 0xF892 10668 bytes