Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ee508d922966785…

MALICIOUS

PDF

77.3 KB Created: 2021-03-19 22:40:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d8be8bfe5d2ca72ef7b042a401b598af SHA-1: 5a502bf8d09befc5ed5b371bb96505d433db5947 SHA-256: 0ee508d92296678594d309e3ed42565e2cc1d1e8fd7d6208b72b92b6dff7d4a8
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, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, mezovuduw.ru, which is likely used to host a phishing page. The document body, though heavily obfuscated, suggests a lure related to a "Bible topical guide". No scripts were extracted, but the presence of external URIs and the malware detection strongly indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mezovuduw.ru/wix?keyword=bible+topical+guide
    • http://fafesixokegigi.getenjoyment.net/xopujebipisabife.pdf
    • http://fitokaps.xyz/harley_sportster_1200_service_intervalsconsw.pdf
    • http://iciapp.xyz/74830335598q6u83.pdf
    • https://fejejupusojovif.weebly.com/uploads/1/3/1/4/131483068/desizotusaso-dobinezovo-mofokor.pdf
    • http://realnoe-obshenie.online/eliminar_virus_adware_manualmentea10iq.pdf
    • http://discount50.pro/38254671511u9h48.pdf
    • https://nebowepef.weebly.com/uploads/1/3/4/4/134483035/kojukuliti.pdf
    • http://table-wait.com/rotagomajekuvukitegisa4yr5m.pdf
    • http://everydayy.fun/how_to_do_istikhara_for_someone_you_lovewyd53.pdf
    • http://chambrehq.xyz/free_color_sheets_unicorns4chxr.pdf
    • http://sewonmedix.ru/organization_fact_sheet_examples8tz1.pdf
    • http://notalebapol.iblogger.org/norma_asme_y14_5.pdf
    • http://robinmani.site/hrbp_interview_questions_and_answers3ci09.pdf
    • http://usblighter24.site/guvirofutabetij89f34.pdf
    • http://picsonair.com/bamonisusaxelawb7q3x.pdf
    • https://wujumumokujot.weebly.com/uploads/1/3/4/6/134613036/8279296.pdf
    • http://nusururak.22web.org/50173445372.pdf
    • http://sitizinudex.getenjoyment.net/jexokozufodixojelufi.pdf
    • http://vuvuga.xyz/black_hoodies_templateqc6ma.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://sidiwen.epizy.com/awesome_icons_png.pdf
    • http://fojakosi.atwebpages.com/clicker_universal_keypad_reprogram.pdf
    • http://xemigososefof.atwebpages.com/inhibition_of_enzyme_action.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e331.bin
b009bc213e6c6529ed6d1b6e31719a3fa273c73be6eb4e5c2a78320025da699c
pdf-font-stream PDF embedded font (sfnt) at offset 0xE331 4932 bytes
font_01_sfnt_off0000f3f8.bin
7c2267d21481e249059cc9bdeca9a6a9dc9fe10f1d596eb32e725a6803582907
pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F8 10684 bytes
font_02_sfnt_off00011873.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x11873 4324 bytes