Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0258bab59f36eab…

MALICIOUS

PDF

89.7 KB Created: 2021-03-09 23:19:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 5bef58db698b1f79c0b4319cf5254b0c SHA-1: a366eeb03e5138716d9cc17cffae79c33aec7ac9 SHA-256: e0258bab59f36eab8f43524e473de515d9101bbb8d989967fc5de9f584a7b9b6
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

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 0.7541

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://dafemum.ru/award?keyword=author+s+purpose+definition+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375702/normal_6040e51dbfd86.pdfIn PDF document text
    • http://sutiboju.sportsontheweb.net/dudivaseziliz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386852/normal_60397c747542a.pdfIn PDF document text
    • https://tewagolefavir.weebly.com/uploads/1/3/0/8/130814187/8052936.pdfIn PDF document text
    • https://dusaxufar.weebly.com/uploads/1/3/5/3/135327992/1677135.pdfIn PDF document text
    • https://movabeze.weebly.com/uploads/1/3/0/8/130814110/newufulusuvapawigeju.pdfIn PDF document text
    • https://bepifesak.weebly.com/uploads/1/3/4/0/134096259/solusikixibedigegu.pdfIn PDF document text
    • https://gakujoxabusu.weebly.com/uploads/1/3/5/3/135394689/gonalaposajom.pdfIn PDF document text
    • http://somixewavado.sportsontheweb.net/how_to_program_overhead_door_remote.pdfIn PDF document text
    • http://lefibipefazefep.mypressonline.com/the_real_book_of_real_estate_audiobook.pdfIn PDF document text
    • https://misiwutikamiba.weebly.com/uploads/1/3/4/6/134601431/zomolimoporozebopa.pdfIn PDF document text
    • http://lubevos.scienceontheweb.net/dakotagumivax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446026/normal_60419a0e0450a.pdfIn PDF document text
    • http://wejuzofibab.medianewsonline.com/loguduvetepixelororupi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://liroporuki.myartsonline.com/bose_901_series_vi_owners_manual.pdfIn PDF document text
    • http://luxupovokajaf.onlinewebshop.net/how_to_calibrate_a_hayward_goldline_salt_system.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/the_end_of_the_world_movie_2012.pdfIn PDF document text
    • http://kedisijusa.onlinewebshop.net/vokikifuvefolu.pdfIn PDF document text
    • http://givetupazowo.onlinewebshop.net/why_dont_i_have_empathy_anymore.pdfIn PDF document text
    • http://wiwosotu.myartsonline.com/59614900974.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/jumuvuvuge.pdfIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/how_to_clean_napoleon_cast_iron_grill_grates.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_off00014aaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AAA 4756 bytes
SHA-256: c6184c8373d8639fca72cf57b45d8ce114f811cb3c9e87ababc714d948f3bc18

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