Malicious PDF — malware analysis report

Static analysis result for SHA-256 d30dda34f54e4dc2…

MALICIOUS

PDF

73.9 KB Created: 2021-03-17 20:38:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 947da9046a63263ba16c1a7c9473b51f SHA-1: 9b08c901359e90d3853e64fa57f1513f1aba6594 SHA-256: d30dda34f54e4dc270cbd9347d7d72a2e5b3ea36ce0d275367ee7a064de9d257
96 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically pointing to 'kuzutuzo.ru'. ClamAV and ML classifiers flagged this PDF as malicious, indicating a phishing or malware distribution attempt. The presence of embedded URLs suggests the document is designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://kuzutuzo.ru/wix?keyword=ridgewood+elementary+hilliard
    • http://lojasamericanasbr.com/44120774171y2j2x.pdf
    • https://bubigijezifaju.weebly.com/uploads/1/3/1/3/131380429/kurebupit.pdf
    • https://puxamosawakexa.weebly.com/uploads/1/3/1/3/131381243/e0c066.pdf
    • http://hihikane.space/86219041360ex9jy.pdf
    • http://watomadoxaxa.iblogger.org/negemesuv.pdf
    • http://susurrus.space/one_piece_bounty_rush_androidn9lqa.pdf
    • http://swiss-family.space/summary_of_a_random_walk_down_wall_streetq1t3b.pdf
    • https://vufumepuzatine.weebly.com/uploads/1/3/5/3/135335191/rulufenoxi.pdf
    • https://bikujezojodu.weebly.com/uploads/1/3/4/5/134587809/d7b5f2e6d49b41.pdf
    • http://idealslimitalia-official.site/template_for_mac_freebq6m2.pdf
    • http://twobigs.space/lg_lfx31945st_07_not_cooling5w9cs.pdf
    • https://cdn-cms.f-static.net/uploads/4375199/normal_6030cffa2492c.pdf
    • https://cdn-cms.f-static.net/uploads/4366024/normal_6014c59f91085.pdf
    • http://taxurofetizi.22web.org/booster_pump_troubleshooting.pdf
    • https://cdn.sqhk.co/fekerepusa/ie8icie/94106801812.pdf
    • http://huaweistoreukr.xyz/business_games_pc_free_download8ee6d.pdf
    • http://monongzhlh.space/spoiler_how_does_defending_jacob_endt6hwe.pdf
    • https://cdn.sqhk.co/wumerelup/1icKHhB/video_player_app_download_for_jio_phone.pdf
    • https://cdn-cms.f-static.net/uploads/4458833/normal_604ba2e315b3e.pdf
    • http://kozlo.space/7847266293715x4z.pdf
    • https://cdn-cms.f-static.net/uploads/4416151/normal_5fd7eb1b23e85.pdf
    • https://cdn-cms.f-static.net/uploads/4460247/normal_604cf73772877.pdf
    • https://cdn.sqhk.co/xiroxozalal/VXDggjd/24572822194.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fazegixedibuw.rf.gd/the_divergent_series_veronica_roth_quotes.pdf
    • http://wasuwenakab.epizy.com/70105754590.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_off0000e17f.bin
3a2c249a644c6a944e31dd04f86bcd83c7e5fa7a8667e4facb7ad2922ece6e0b
pdf-font-stream PDF embedded font (sfnt) at offset 0xE17F 5260 bytes
font_01_sfnt_off0000f34d.bin
9b0fc47f6c4a325c206932658973d661c41f7b2ba80611ff61a497053f071951
pdf-font-stream PDF embedded font (sfnt) at offset 0xF34D 11192 bytes