Malicious PDF — malware analysis report

Static analysis result for SHA-256 9401fc61b49171f9…

MALICIOUS

PDF

70.7 KB Created: 2021-02-22 09:27:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 5e6340b1aaff86e00ee528adddd3faf9 SHA-1: 0071208fe2a8e7194551826bfe1d399672ae3ee5 SHA-256: 9401fc61b49171f96e1e55090fcf144d16347201cfa1bdfb6e7fb71b6d7a4933
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URI pointing to 'bologen.ru', which is likely a malicious domain used to host or distribute malware. The presence of a 'download button' heuristic further suggests a lure to trick the user into downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bologen.ru/wix?keyword=eid+mubarak+images+2020 PDF link annotation
    • https://cdn.sqhk.co/pejemomet/bTjthad/epic_summoners_hero_legends_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/ribegibonot/K8jiigj/14701814782.pdfIn PDF document text
    • http://liketime.online/rosojegimedfuq7i.pdfIn PDF document text
    • http://thrivewebs.com/9234655854983x9b.pdfIn PDF document text
    • https://cdn.sqhk.co/jerivudofin/NibCaia/61669306599.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gametusepezuka.rf.gd/likert_scale_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/canon_eos_1100d_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/volatile_organic_compounds_test_report.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/22618082862.pdfIn PDF document text
    • https://s3.amazonaws.com/zabejuvijolu/walmart_support_manager_interview_questions_and_answers.pdfIn PDF document text
    • http://sumafalonedap.rf.gd/what_are_the_duties_of_protocol_officer.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/katited.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/igcse_chemistry_edexcel_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/doheny_dana_point_surf_report.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/web_worksheet_history_of_halloween.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/9830217667.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cfcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFCB 5548 bytes
SHA-256: 0495aba8be46ffb782642eab57ae5e7a4895a1a5db6395146c5e69b42b526b65
font_01_sfnt_off0000e28b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE28B 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_02_sfnt_off0000eb19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB19 10208 bytes
SHA-256: 71fee8245b651480198b84529d9dfba3e3012f4f60469ce4164be975cdff5e9b

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