Malicious PDF — malware analysis report

Static analysis result for SHA-256 eddb1cf079a77fb1…

MALICIOUS

PDF

75.0 KB Created: 2021-03-01 16:24:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 7f3b8fde75841c36ed4b84239d21bce8 SHA-1: 2645556f0c15029b9563097444f5d1df3647f2a6 SHA-256: eddb1cf079a77fb18ee94f998c2ed99186a75ee1534828a3d37362293f291475
124 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many pointing to disposable hosting services, suggesting a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document, potentially leveraging embedded JavaScript for exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9775

Heuristics 4

  • 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
  • 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://xajibur.ru/award?keyword=how+long+do+rc+nimh+batteries+last PDF link annotation
    • http://wipunemobak.mygamesonline.org/27973132568.pdfIn PDF document text
    • https://cdn.sqhk.co/sotatixorawi/aPDhgg8/eqfy_equalizer_apk_pure.pdfIn PDF document text
    • https://cdn.sqhk.co/nokikifabaf/NTPggX4/farm_tractor_line_art.pdfIn PDF document text
    • https://punopofogow.weebly.com/uploads/1/3/1/4/131437229/9176fbe556.pdfIn PDF document text
    • https://sozizupisez.weebly.com/uploads/1/3/1/8/131872239/zejusamuwob-rukufe-jaripekoti.pdfIn PDF document text
    • https://cdn.sqhk.co/zefipuvuwifi/9htQFgj/iptv_para_android_tv_gratis.pdfIn PDF document text
    • https://cdn.sqhk.co/nupegefozub/GhaahjJ/93467073274.pdfIn PDF document text
    • https://cdn.sqhk.co/zupuguvawaj/chfxykX/werulusovu.pdfIn PDF document text
    • https://janirakuvofubej.weebly.com/uploads/1/3/4/7/134734148/7546491.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456676/normal_5ffaafb7ef674.pdfIn PDF document text
    • https://cdn.sqhk.co/fabunavaxa/Gdjgjjv/shark_ionflex_duoclean_cordless_vacuum_reviews.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/christopher_hitchens_vanity_fair.pdfIn PDF document text
    • http://jidapuxedepu.medianewsonline.com/how_to_hook_up_bose_cinemate_series_ii_to_tv.pdfIn PDF document text
    • https://zajodufukotu.weebly.com/uploads/1/3/1/8/131857357/tuxusajabakel.pdfIn PDF document text
    • https://cdn.sqhk.co/dodamewope/Ehegjhh/zombie_tsunami_hack_level.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lemagokumir.epizy.com/qu_significa_soar_que_se_me_caen_todos_los_dientes.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010b5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B5A 5544 bytes
SHA-256: a03345e67ed5f3c28a51d7ec41ee74b3308c427653cbad2fcafac81942f7c5be