Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6a5575e9a706107…

MALICIOUS

PDF

75.8 KB Created: 2021-04-26 14:13:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8b36b160a67c53bbbd7ee9f6a32daf01 SHA-1: 2a88ca265a7f619e7181c443dc1dbca7d3242aa7 SHA-256: a6a5575e9a7061077646d5223d0a287ec6c4c2ca7ba9ce560c493de61e5b7b9c
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://mezovuduw.ru/strik?utm_term=sig+sauer+p239+357+extended+magazine PDF link annotation
    • http://pressit.space/how_did_education_change_during_the_1920si9yf5.pdfIn PDF document text
    • http://filemarker.store/alter_ego_2_a2_guide_pdagogique91tea.pdfIn PDF document text
    • http://confirmyourverifiedbadge.com/36659423406sye2z.pdfIn PDF document text
    • https://cdn.sqhk.co/gozafavapawu/pjeIjjv/96140028021.pdfIn PDF document text
    • https://getenulezawo.weebly.com/uploads/1/3/4/8/134897364/528741.pdfIn PDF document text
    • https://cdn.sqhk.co/didowolikex/e9ALRyN/roxojudaxijede.pdfIn PDF document text
    • https://jufasoxoko.weebly.com/uploads/1/3/5/3/135315704/8327419.pdfIn PDF document text
    • https://cdn.sqhk.co/fekigimuzib/iexhhhj/jugs_bowling_machine_speed_chart.pdfIn PDF document text
    • https://cdn.sqhk.co/kubepugemaki/gfjh9jb/gun_builder_elite_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/kovutego/WohgiOb/kakad_aarti_lyrics.pdfIn PDF document text
    • https://litolojinoforiw.weebly.com/uploads/1/3/4/7/134721995/c0dbc5.pdfIn PDF document text
    • https://jixawapideraje.weebly.com/uploads/1/3/3/9/133997308/437472.pdfIn PDF document text
    • http://tehnotop.site/disturbed_sleep_pattern_nursing_care_planayamg.pdfIn PDF document text
    • http://potaberukogox.66ghz.com/gosisawupolanimimaz.pdfIn PDF document text
    • https://pazodozonevaken.weebly.com/uploads/1/3/4/6/134606284/60ebaed488e0f.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/dozore/gukubu.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/forodaxemufanemifeti.pdfIn PDF document text
    • http://pipomutazujem.rf.gd/doss_soundbox_bluetooth_speaker_troubleshooting.pdfIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/logabunuzuxupedoxoweju.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/invoice_template_for_ipad_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/walijunegonedubo.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_off0000e6d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D6 6124 bytes
SHA-256: 01af06114dfba184bab91b59246662743f06739f5dd41526f160daea4f428fbe
font_01_sfnt_off0000fba7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBA7 11128 bytes
SHA-256: 687a6aebe893eb573cc62e489cfc6cbeaecd643d2d68c1b9a23e705ac8bea7a9

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