Malicious PDF — malware analysis report

Static analysis result for SHA-256 198d8ff68b22b4c5…

MALICIOUS

PDF

79.8 KB Created: 2021-04-09 19:22:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: f42386d3a4b6bc11a0fdbf90b9369176 SHA-1: 7cda624e3d1e86ed332c7b8f32dacdec7c0ec53f SHA-256: 198d8ff68b22b4c5f7a18265bb2aa7a713da51acffaa88ba4ddb7bf2720386e4
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL, which is a common tactic for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate maliciousness. The document body, though heavily obfuscated, contains text that appears to be a lure related to a 'Maytag epic z washer clean cycle', directing the user to a suspicious URL.

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://dugedepap.ru/strik?utm_term=maytag+epic+z+washer+clean+cycle PDF link annotation
    • https://cdn.sqhk.co/gisusisabez/tgiUFvC/aafat_naezy_song_pagalworld.pdfIn PDF document text
    • http://sikewogewetonos.iblogger.org/demuvekemelenazidesurere.pdfIn PDF document text
    • http://kadabafomelu.66ghz.com/bolero_ravel_music_sheet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419857/normal_605b9a1d94b6d.pdfIn PDF document text
    • https://cdn.sqhk.co/jubawiwa/ijivvgi/screen_video_recorder_for_pc_download.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzitomizaj/hghhhf9/54228903760.pdfIn PDF document text
    • https://cdn.sqhk.co/betewulo/fhjhihX/95822519784.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426261/normal_605d800f78f7e.pdfIn PDF document text
    • http://zuluguvo.iblogger.org/dj_mix_ganesh_bhajan.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/jovekus/adventures_of_tintin_script.pdfIn PDF document text
    • http://reridinal.epizy.com/anemia_microcitica_hipercromica.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/vevewexukud.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/lelobine.pdfIn PDF document text
    • http://sipopos.epizy.com/java_formatter_code_style.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/5150396894.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/english_vocabulary_worksheet_for_grade_5.pdfIn PDF document text
    • http://polotukumi.rf.gd/511611251.pdfIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/62898081365.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/winopikazuxulezoleke.pdfIn PDF document text
    • http://rupawuvafe.rf.gd/govazitonenipujegudome.pdfIn PDF document text
    • https://s3.amazonaws.com/genijusemu/palm_leaf_pattern_template.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_off0000f4cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4CD 5444 bytes
SHA-256: 6c48703db5d308fb9a24d37e5ea580a74ad12c220c942f8e065dc046f746ab5e
font_01_sfnt_off0001077e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1077E 11820 bytes
SHA-256: 791a8c161af4d7039334b1c522c56c9d620ed76117d8ea92cc1d98d6227a1220

Open this report in the interactive analyzer, or submit your own file for analysis.