Malicious PDF — malware analysis report

Static analysis result for SHA-256 b69f86c3ee3a3ba0…

MALICIOUS

PDF

70.3 KB Created: 2021-02-21 19:06:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: abc2740314ad6c4ea0c91b230fc25964 SHA-1: d1394b5450ada9d3a56f8d21b494a3f0aa18aac5 SHA-256: b69f86c3ee3a3ba089be463926058d56110d5d34c8a8ebd850df940f6a2fe4ea
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a secondary payload or conduct phishing activities. The document body, though heavily obfuscated, suggests a lure related to a 'Pentair triton ii commercial manual'.

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://jottigo.ru/strik?utm_term=pentair+triton+ii+commercial+manual PDF link annotation
    • http://winfreeiphone.xyz/xavalubuzuvugoluzirobonw88k.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403537/normal_5ff8bb21dfe34.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412170/normal_5fd86eb8dad44.pdfIn PDF document text
    • http://fimewot.xyz/credit_reporting_bureau_phone_numbers05rdn.pdfIn PDF document text
    • http://universe1.space/13225376029y1rm5.pdfIn PDF document text
    • http://pollsexpert.com/jesus_calling_daily_devotional_2021yt09h.pdfIn PDF document text
    • http://summ-ita.space/68735279193inz29.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501233/normal_600b52f186fe2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bomupi/alan_walker_dj_music.pdfIn PDF document text
    • http://sozidaxaguzir.rf.gd/nexorumelugefafozi.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/tracktion_6_mac_download.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/2024498069.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/football_games_apps_free.pdfIn PDF document text
    • http://godemesefiw.epizy.com/admob_ads_in_android.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/audio_editor_pc_free.pdfIn PDF document text
    • http://mezotavexojo.rf.gd/scratch_platformer_physics.pdfIn PDF document text
    • http://rofamotitasijud.rf.gd/71311713556.pdfIn PDF document text
    • https://s3.amazonaws.com/desekusoxi/bhaag_milkha_bhaag_rock_version_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/nojemi/chrome_android_disable_bottom_bar.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4B6 4768 bytes
SHA-256: f13b59c8bfb07889d26dc3a2300453d8af956c985048a4a916342b40a4431e5b
font_01_sfnt_off0000e4d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D3 11064 bytes
SHA-256: 5196d052a9624136cb1b8f3e123cb009dfe62739b5d8049e8d27317f35cbb51e

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