Malicious PDF — malware analysis report

Static analysis result for SHA-256 04ed39e07f152221…

MALICIOUS

PDF

81.8 KB Created: 2021-03-27 11:45:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: f960e2b78f1cf118288b2878d36faa82 SHA-1: d2d96e89992e677b86d00433e1c6154f28bdbc89 SHA-256: 04ed39e07f152221968e874869b1bd7db5d63b7f3dbf3d921c545a860739f966
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with one pointing to 'lozipotod.ru', which is flagged as a suspicious domain. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is part of a link farm on disposable hosting, suggesting a phishing or spam campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to a malicious site for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://lozipotod.ru/wix?keyword=little+boss+swtor+dulfy PDF link annotation
    • https://cdn.sqhk.co/fesakesovoka/hfihoaF/ludo_king_for_pc_windows_7_download.pdfIn PDF document text
    • https://cdn.sqhk.co/famuxina/npNgeia/94587220542.pdfIn PDF document text
    • https://cdn.sqhk.co/mitukutowum/eneijhh/hori_racing_wheel_apex_ps4_gran_turismo.pdfIn PDF document text
    • http://filebitikuj.iblogger.org/sole_e35_elliptical_assembly_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/xurawupo/ifoaLV6/xutidokopana.pdfIn PDF document text
    • https://cdn.sqhk.co/bipozipo/fwSdihc/plants_vs_zombies_2_free_games_to_play.pdfIn PDF document text
    • http://ladirojenovezoj.mygamesonline.org/rokikagasalaka.pdfIn PDF document text
    • https://cdn.sqhk.co/gulizate/hSieeii/space_live_wallpaper_hd_iphone_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/jekurona/wjiig0a/the_wolf_online_simulator_forum.pdfIn PDF document text
    • https://cdn.sqhk.co/kogeledewafo/hiOicuA/kexadejukutasuleja.pdfIn PDF document text
    • http://rasezatoxefu.mygamesonline.org/what_page_does_atticus_sit_outside_the_jail.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://leribilif.rf.gd/foxuvovizofibevawanenos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c2b12f8-dd73-4ca3-8f0f-422b46772621/how_to_calculate_training_man_hours_in_excel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/758e05e6-d76d-4679-81e1-d9ada64f83a0/tafofezelufitakokox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03429a9a-315c-4816-9dcf-d9f5b1cce30f/49322707813.pdfIn PDF document text
    • http://vefolex.rf.gd/general_characteristics_of_negative_feedback_amplifiers.pdfIn PDF document text
    • http://zerakunutage.epizy.com/zukededekemesosen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc7ac526-18b9-417c-92a5-b11bb901539f/how_to_convert_2d_to_3d_in_autocad_2017.pdfIn PDF document text
    • http://butopam.rf.gd/navy_league_awards_manual.pdfIn PDF document text
    • http://wemiwapava.epizy.com/celine_tam_songs_mp4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79264043-9bc1-464c-a7d7-b6ae2f4037f0/18518148276.pdfIn PDF document text
    • http://xonefepuvimami.epizy.com/lajukajusolepoliwimo.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_off00010472.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10472 4968 bytes
SHA-256: 8eb35bfc929f08605f2086c0971bbc32cb4a283ea6364367b1cf3eb0708ddfba
font_01_sfnt_off0001157d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1157D 10540 bytes
SHA-256: e2acc441dc87ae7a4ecaeaa023798daf1eebb79145f7f5ba9b8844f1bcef8338

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