Malicious PDF — malware analysis report

Static analysis result for SHA-256 b18d484b843f8e46…

MALICIOUS

PDF

54.3 KB Created: 2021-06-01 04:14:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c8fc94580c1d50d5966250c2a1e3e0ed SHA-1: dc63e309b82067e89be1d7d37c981b3847b6b345 SHA-256: b18d484b843f8e464a2ae7037c4e36128bd59d08fc6928b8fdc4835ccfb121a5
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, with a high-confidence heuristic identifying it as a link farm on disposable hosting. The primary malicious URL, https://inwebjor.ru/pbw?utm_term=big+toys+direct+jeep+assembly, is likely used to redirect users to a phishing or malware site. ClamAV detection and ML classification further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8902

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://inwebjor.ru/pbw?utm_term=big+toys+direct+jeep+assembly
    • https://static.s123-cdn-static.com/uploads/4444369/normal_5fceab2c5a3c5.pdf
    • https://cdn-cms.f-static.net/uploads/4500692/normal_5fd147f616c9e.pdf
    • https://static.s123-cdn-static.com/uploads/4490752/normal_5fc85963e36a8.pdf
    • https://static.s123-cdn-static.com/uploads/4450338/normal_5fe3597051eb4.pdf
    • https://cdn-cms.f-static.net/uploads/4418991/normal_601feb3f48379.pdf
    • https://cdn-cms.f-static.net/uploads/4485435/normal_603c76bd9ca7f.pdf
    • https://static.s123-cdn-static.com/uploads/4367937/normal_6005adcc1d73d.pdf
    • http://jajisaparev.pbworks.com/w/file/fetch/144419406/25730869029.pdf
    • http://barumena.pbworks.com/w/file/fetch/144440010/lazoxi.pdf
    • http://watusuxipidu.pbworks.com/w/file/fetch/144424161/how_much_does_a_medical_research_analyst_make.pdf
    • http://zepadatoju.pbworks.com/f/is_tracfone_iphone_unlocked.pdf
    • http://pamotekegopa.pbworks.com/f/codominance_multiple_alleles_worksheet_answers.pdf
    • http://godekazonigi.pbworks.com/f/88870244674.pdf
    • http://pevozowo.pbworks.com/w/file/fetch/144424509/toret.pdf
    • http://bupataved.pbworks.com/w/file/fetch/144420588/audi_a8_d3_owners_manual.pdf
    • http://papoxuva.pbworks.com/w/file/fetch/144423075/tejapim.pdf
    • http://rimogeto.pbworks.com/w/file/fetch/144427530/clculo_mental_para_nios_cuarto_primaria.pdf
    • http://mifimoruzuwo.pbworks.com/f/52615993881.pdf
    • http://godekazonigi.pbworks.com/f/minecraft_pocket_edition_for_pc_windows_7.pdf
    • http://xawaren.pbworks.com/f/6794128161.pdf
    • http://niwomif.pbworks.com/w/file/fetch/144429135/zanussi_lindo_300_tumble_dryer_not_working.pdf

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