Malicious PDF — malware analysis report

Static analysis result for SHA-256 794eeec68a01126a…

MALICIOUS

PDF

76.5 KB Created: 2021-03-05 09:55:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: c5adafaad01dd98d0e819637ba34c14e SHA-1: e621ef69683ae5ac70ecb14b25d776b164144393 SHA-256: 794eeec68a01126a7b92de1f5652564dd2984dd9ab0f6570f4b93bc75763e437
126 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one prominent link pointing to a suspicious domain ('lozipotod.ru') that is flagged as potentially malicious. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing or trojan PDF. The presence of embedded URLs and the overall structure suggest an attempt to redirect the user to a malicious site for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/123?utm_term=reservation+blues+chapter+10+summary PDF link annotation
    • http://pafiwuz.66ghz.com/92975527820.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384149/normal_5ff29dd26ad31.pdfIn PDF document text
    • https://lomofoxagut.weebly.com/uploads/1/3/4/5/134524577/3526569.pdfIn PDF document text
    • http://jopuvalipi.22web.org/journey_to_the_west_the_demons_strike_back_full_movie_in_hindi_dubbed_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451208/normal_5fdff8cfaebea.pdfIn PDF document text
    • https://cdn.sqhk.co/xubewarow/ghjc8qp/23081136538.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457005/normal_5ffc917140e37.pdfIn PDF document text
    • https://xarutixusu.weebly.com/uploads/1/3/4/6/134699400/56b7ebc7202.pdfIn PDF document text
    • https://cdn.sqhk.co/ritasuxa/jgUopjb/idle_island_mod_apk_revdl.pdfIn PDF document text
    • https://cdn.sqhk.co/pivokazi/ohP4ijs/daniel_tiger_s_stop_go_potty.pdfIn PDF document text
    • https://cdn.sqhk.co/pegipoveridi/jeTxDje/flip_goal._play.pdfIn PDF document text
    • http://wusodopepufex.66ghz.com/kotor_2_korriban_written_test_answers.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404753/normal_60171cb9cf6f1.pdfIn PDF document text
    • https://lesezisuwo.weebly.com/uploads/1/3/4/1/134109364/2eb4b0d.pdfIn PDF document text
    • http://bosamitax.22web.org/sqlplus_format_output_heading.pdfIn PDF document text
    • https://cdn.sqhk.co/zetikitor/bVQS0hc/rasuki.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/63b8d90a-dea1-4009-b630-d8846df037e6/60983314188.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0a5b8bd-40d7-443c-8a69-23f4a60bcfad/what_is_an_example_of_an_unconscionable_contract.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/482e10da-0b2f-4e67-8e9e-3588c7ffa2e6/watch_the_hunger_games_mockingjay_part_2_full_movie_free_123.pdfIn PDF document text
    • http://zezajezo.epizy.com/bomakoperuzel.pdfIn PDF document text
    • http://vimitafukufes.rf.gd/4416928342.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9fddd53-9e77-4c73-b826-2e3a1ca7e45c/venn_diagram_tool_excel.pdfIn PDF document text
    • http://rusowemiwa.rf.gd/bulivafabaneduluteludasel.pdfIn PDF document text
    • http://gofudawaropuz.epizy.com/access_2003_sample_database.pdfIn PDF document text
    • http://lexuwusifo.epizy.com/folifubivapukoj.pdfIn PDF document text
    • http://todubina.epizy.com/spreadsheet_deutsch_google.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1509e3e1-12ca-45df-8e5f-4495baa50c04/the_shock_doctrine.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_off0000edf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF1 5676 bytes
SHA-256: 2897031ae6ea0a1557a40bdbd8f713ac2dbeeeee907b9fcd3e9ada8d436c287f
font_01_sfnt_off00010125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10125 10124 bytes
SHA-256: 4b1a248f69f937a64e8054ea590eef18ed53213f8f2a1118ce5abc1c86c6461f