Malicious PDF — malware analysis report

Static analysis result for SHA-256 131106ae4d762174…

MALICIOUS

PDF

76.3 KB Created: 2021-05-07 04:14:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b2861a8712558d43050994c35c9bea7e SHA-1: d8d4e6f5e2937e00adcbae8ed2f2650e4a52a48f SHA-256: 131106ae4d76217405437191f16685a098a0f00b982fc5c2102f8b77669957f3
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a URL that appears to be part of a phishing campaign, disguised as a manual for a 'Black and Decker mini fridge with freezer'. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://seumenha.ru/strik?utm_term=black+and+decker+mini+fridge+with+freezer+manual
    • https://static.s123-cdn-static.com/uploads/4419832/normal_5fc8660029110.pdf
    • https://cdn.sqhk.co/xapawavuma/9wNVgjJ/analog_clock_worksheets_to_the_minute.pdf
    • https://cdn.sqhk.co/letopoto/09gTjhh/aplicativo_espiao_para_android.pdf
    • http://bezprovodov.guru/managed_file_transfer_gartnermn441.pdf
    • http://autobaff.xyz/cisco_webex_room_kit_end_user_guidetush7.pdf
    • https://cdn.sqhk.co/xolovagi/eLOGWhf/79117443089.pdf
    • https://cdn.sqhk.co/fawabanof/cwjaji3/global_smartphone_penetration.pdf
    • https://cdn.sqhk.co/rolaravez/iqsgigf/one_good_turn_deserves_another.pdf
    • http://citimart.online/wupixobewavaa13w6.pdf
    • https://cdn.sqhk.co/fusozuwalas/hjPijkg/63781933194.pdf
    • http://mazanatur.space/gobuvs99c7.pdf
    • https://static.s123-cdn-static.com/uploads/4415937/normal_5ff5cc38ad511.pdf
    • https://cdn-cms.f-static.net/uploads/4470209/normal_605976424749e.pdf
    • http://my-favshoph.online/probability_density_function_for_uniform_distribution05l0q.pdf
    • https://cdn.sqhk.co/xabovalizo/mshighh/38110766186.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jujadodedaruxix/30616974712.pdf
    • https://s3.amazonaws.com/gapivegek/ribotisozaban.pdf
    • https://s3.amazonaws.com/zeworibuzoza/jogarinugox.pdf
    • https://s3.amazonaws.com/fonibinaraj/iso-_line_lab_hgb_answers.pdf
    • https://s3.amazonaws.com/bakoloj/43379292133.pdf
    • https://s3.amazonaws.com/varolexexus/nordictrack_990_pro_elliptical_manual.pdf
    • https://s3.amazonaws.com/gulapore/sonic_alert_sb1000ss_boom_alarm_clock_with_bed_shaker.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_off0000eb1a.bin
897149b0848f075b984f78a5892b31327ac332a60502538eae9445b1093d009c
pdf-font-stream PDF embedded font (sfnt) at offset 0xEB1A 5512 bytes
font_01_sfnt_off0000fdd1.bin
ef94d122fc046338c6c50df7b30549901816baca8ff6155de33e8e8af2baad44
pdf-font-stream PDF embedded font (sfnt) at offset 0xFDD1 10992 bytes