Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f0cc16230c8320b…

MALICIOUS

PDF

58.9 KB Created: 2021-02-23 21:46:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8bb6dc4a0a1d5b7b5506d20f9f39e306 SHA-1: 49954230549618a6943dd7072b9af32d038b0c80 SHA-256: 2f0cc16230c8320b012997825b5bef2abb02fc9ce2081b5f2f70c053a0a3ca29
184 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7905

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/strik?utm_term=asus+rt-ac87r+factory+reset PDF link annotation
    • http://topcreditcheck.info/manual_de_terapia_cognitivo_conductual_con_nios_y_adolescentesjrpp8.pdfIn PDF document text
    • https://cdn.sqhk.co/badisasi/abgfQCR/funny_birthday_gift_ideas_for_boyfriend.pdfIn PDF document text
    • https://furureseseruwa.weebly.com/uploads/1/3/4/4/134481841/4822757.pdfIn PDF document text
    • https://noduxulab.weebly.com/uploads/1/3/4/9/134901810/44dad7.pdfIn PDF document text
    • https://cdn.sqhk.co/juvexafi/SuRNGIw/red_sunrise_background.pdfIn PDF document text
    • https://nagejezesalu.weebly.com/uploads/1/3/0/8/130874580/zizap.pdfIn PDF document text
    • https://betisifi.weebly.com/uploads/1/3/1/4/131438474/levuzilobop.pdfIn PDF document text
    • https://zafudibibini.weebly.com/uploads/1/3/4/1/134108698/637476.pdfIn PDF document text
    • https://jexujomasok.weebly.com/uploads/1/3/5/3/135343442/034e77cf.pdfIn PDF document text
    • https://vowexigap.weebly.com/uploads/1/3/1/6/131636774/5478701.pdfIn PDF document text
    • http://kadesevi.iblogger.org/directv_rc66rx_remote_manual.pdfIn PDF document text
    • https://noduxulab.weebly.com/uploads/1/3/4/9/134901810/wuganumeb-lizixodekezum-waxevuge-dabixugunazaris.pdfIn PDF document text
    • http://masovizifuzaro.iblogger.org/xezatasifunod.pdfIn PDF document text
    • http://differencecheats.net/basic_excel_2007_tutorial8tk5u.pdfIn PDF document text
    • https://cdn.sqhk.co/karadirimose/eWJgiAL/injustice_2_harley_quinn_classic_costume.pdfIn PDF document text
    • http://zuvels.xyz/functional_skills_reform_testl91w.pdfIn PDF document text
    • http://doxinaxa.epizy.com/asc_740_guide_kpmg.pdfIn PDF document text
    • http://wubidizox.rf.gd/teamfight_tactics_comps_cheat_sheet.pdfIn PDF document text

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