Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ee8d7046a16a234…

MALICIOUS

PDF

62.0 KB Created: 2021-02-13 17:50:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 9b76c9a44de6580fa4e6b0f15363275f SHA-1: 202087272ff159639d9d63f72f6a3b0230e3215e SHA-256: 7ee8d7046a16a234e047a0b353de3fec1b4b5b25b11f3429a098700ca84ed12b
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document is classified as malicious, exhibiting characteristics of a phishing or malware distribution lure. It contains numerous embedded URLs, many pointing to disposable domains, suggesting an attempt to redirect users to malicious content or download further payloads. The heuristic 'SE_LOLBIN_RUN_COMMAND' indicates the presence of command-line related strings within the document text, potentially for executing malicious commands. The ML classifier and ClamAV detection strongly support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://jacksth.ru/wix?keyword=from+inquiry+to+academic+writing+a+practical+guide+4th+edition+pdf+free PDF link annotation
    • http://eslivdrug.space/partituras_de_banda_marcial02unj.pdfIn PDF document text
    • http://tikovg.xyz/kewegaxomojaynzti.pdfIn PDF document text
    • http://homebig.space/baahubali_telugu_movie_free0tdpl.pdfIn PDF document text
    • http://gafujovinotu.22web.org/free_autocad_2007_crack_file.pdfIn PDF document text
    • https://cdn.sqhk.co/riragimi/hgUhjC0/slot_car_trainer_program.pdfIn PDF document text
    • http://purpless.vip/muwopvy12y.pdfIn macro / runtime command snippet
    • http://hdsamara.ru/exogenesis_part_3_piano_sheet_musicka2j5.pdfIn PDF document text
    • http://importants.space/pokemon_heart_gold_descargar_mega6goyk.pdfIn PDF document text
    • http://titanof-filtr.ru/statistical_analysis_with_software_application7n3t5.pdfIn PDF document text
    • http://xigujawuruwuko.22web.org/fuxijevexovezigivug.pdfIn PDF document text
    • https://cdn.sqhk.co/nifodotiriru/h3gfibG/best_mini_dash_cam_2018.pdfIn PDF document text
    • http://frasqen.online/state_absentee_ballot_request_form_north_carolina0ikb1.pdfIn PDF document text
    • https://cdn.sqhk.co/riragimi/In macro / runtime command snippet
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xetasif/mizovudopuxexifunidedukol.pdfIn PDF document text
    • http://ruxetetimaxozur.rf.gd/cmd_commands_for_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/84957311461.pdfIn macro / runtime command snippet
    • http://fugewep.rf.gd/87316373269.pdfIn macro / runtime command snippet
    • https://s3.amazonaws.com/zebarufuridorur/arctic_wolf_295qsl8_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/51919437595.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_off0000b4ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4AD 5756 bytes
SHA-256: 2bb7f1da7092ae5609856ef8f5935838516dca42c4ca469f044f25748b823dda
font_01_sfnt_off0000c83d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC83D 9980 bytes
SHA-256: dfe973721d0386f9f2f26d19c48a96c6fccffa505146c4071d7288823ba84ec9

Open this report in the interactive analyzer, or submit your own file for analysis.