Malicious PDF — malware analysis report

Static analysis result for SHA-256 47a104c00d08a98c…

MALICIOUS

PDF

76.3 KB Created: 2021-04-08 03:42:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 70dabd8acbb0bba2a4a7baa54755177e SHA-1: a91499c524de6b345c004bb0b036cfd1a5d862bd SHA-256: 47a104c00d08a98cf0c97f941c40f1ef3fbdc1c09ef9c188c9d8e0e1cb9dc89b
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm designed to redirect users. The ClamAV detection and ML classifier indicate malicious intent, likely for phishing or distributing further malware. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document, potentially leveraging JavaScript for exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8573

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
  • 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
  • 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://maypoin.ru/award?keyword=breast+cancer+project+pdf PDF link annotation
    • http://zibodotuf.mygamesonline.org/how_to_swing_trade_andrew_aziz.pdfIn PDF document text
    • http://wipebodu.mypressonline.com/approximation_for_sbi_po_2020.pdfIn PDF document text
    • http://iciapp.xyz/jubepipexisibevomol09ynh.pdfIn PDF document text
    • http://pelinebaj.mypressonline.com/dell_precision_3520_datenblatt.pdfIn PDF document text
    • http://lakenamazaga.iblogger.org/how_to_move_a_piston_with_a_piston.pdfIn PDF document text
    • http://tofotibuwul.sportsontheweb.net/agenda_escolar_2020_para_imprimir_gratis.pdfIn PDF document text
    • http://jikusofare.mywebcommunity.org/pamotuxomo.pdfIn PDF document text
    • http://civiliscmq.online/acer_g236hl_reviewschhd.pdfIn PDF document text
    • http://nonoxutiwi.mypressonline.com/excel_analysis_toolpak_tutorial.pdfIn PDF document text
    • http://xonitaj.mywebcommunity.org/diablo_3_crusader_build_paragon_points.pdfIn PDF document text
    • http://rodina38.ru/irobot_roomba_s9_robot_vacuum_with_automatic_dirt_disposalnslfi.pdfIn PDF document text
    • http://sogixusi.medianewsonline.com/python_base64_encode_file.pdfIn PDF document text
    • http://nakijeku.mygamesonline.org/tufebenalana.pdfIn PDF document text
    • http://rigoditibalun.mywebcommunity.org/49780611936.pdfIn PDF document text
    • http://meetly.space/manual_da_mesa_de_som_yamaha_mg16xuzf8n3.pdfIn PDF document text
    • http://kernig.online/54102223826py0yj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://suzurexitumafod.epizy.com/autocad_weld_symbols.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a66ec844-52a9-49bd-9e2b-2eb63333bbfb/gotabuwisiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6962656-dc97-4776-a384-58fe8a609816/pagijaforowoxotadof.pdfIn PDF document text
    • http://rurakudusabi.rf.gd/39076012291.pdfIn PDF document text
    • http://kekokid.epizy.com/actos_del_hombre.pdfIn PDF document text
    • http://jevabatogi.rf.gd/rukuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a0d5598-0105-4b25-ba4b-9f665cc54906/36294863797.pdfIn 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_off0000ff4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF4D 5244 bytes
SHA-256: 874a8c2983e535f590f65cd90083710f34f2f5a329ad75855e01e6d983956e6d
font_01_sfnt_off00011137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11137 11352 bytes
SHA-256: 3088adae34e55719664eb7948c35084409982f4db990872024e6e6a62fbc2880

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