Malicious PDF — malware analysis report

Static analysis result for SHA-256 eafe963d1a8258da…

MALICIOUS

PDF

85.0 KB Created: 2021-03-31 13:43:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 95f61dd96d7511c4be61ac2eca0b9f49 SHA-1: 991fc4f01dfce73eef0e0391669710c0990703e5 SHA-256: eafe963d1a8258daab01c695b850901622484edffa8aea686285e4f1960603cc
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable hosting, and is flagged as a link farm. The primary malicious URL, https://lozipotod.ru/wix?keyword=pathfinder+ring+of+spell+knowledge+divine, is likely used to redirect users to a phishing or malware site. ClamAV detection and ML classification strongly indicate malicious intent, likely related to phishing or trojan distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 5

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://lozipotod.ru/wix?keyword=pathfinder+ring+of+spell+knowledge+divine PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4477173/normal_6018f50470bf1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501486/normal_5fdb36ec5619a.pdfIn PDF document text
    • https://poxatekegevu.weebly.com/uploads/1/3/4/7/134753674/a7f227b.pdfIn PDF document text
    • http://zinuvudoliku.iblogger.org/rapid_diagnostic_tests_for_malaria_parasites.pdfIn PDF document text
    • https://zonulezewuras.weebly.com/uploads/1/3/4/8/134890742/6722598.pdfIn PDF document text
    • https://negowuvezesat.weebly.com/uploads/1/3/4/8/134859399/4811203.pdfIn PDF document text
    • http://mujezinej.22web.org/3m_conspicuity_tape.pdfIn PDF document text
    • http://jenewazajasazu.getenjoyment.net/91256978358.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490547/normal_605d91fdd426a.pdfIn PDF document text
    • https://datuzela.weebly.com/uploads/1/3/4/1/134109276/670f403d11.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502567/normal_6047a6d44d9a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393346/normal_603345fbc4a1c.pdfIn PDF document text
    • http://sizuxofutitarax.mypressonline.com/pedinanebakamezifobin.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401982/normal_5ff3cc7f39f88.pdfIn PDF document text
    • https://nalovitifa.weebly.com/uploads/1/3/4/6/134600698/7643264.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479691/normal_5fcf59d29c8e9.pdfIn PDF document text
    • http://sijemogezabusa.sportsontheweb.net/addressing_modes_of_pic_microcontroller_16f877.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://vajipiposugeto.rf.gd/craftsman_25cc_gas_blower_fuel_filter_replacement.pdfIn PDF document text
    • http://rakemexovujepez.epizy.com/what_charity_picks_up_furniture.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/injustice_gods_among_us_game_android.pdfIn PDF document text
    • http://xutenujute.myartsonline.com/what_does_moultrie_mean.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/comedy_videos_free_3gp.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/annual_general_meeting_agenda_template.pdfIn PDF document text
    • http://nabafurulevu.epizy.com/nts_answer_key_2018_rescue_1122.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/naruto_ultimate_ninja_storm_4_apk_apkpure.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA71 5308 bytes
SHA-256: 025fcef9d3ac2940c8e52b39479227f0657875329a326afc05cd0cfb8b87333f
font_01_sfnt_off00010c87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C87 12304 bytes
SHA-256: ecdd8149793a4a989b381c3ca2c5e6b9597492a5700ce4366d8e7fbe71ca683f
font_02_sfnt_off000135b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135B6 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176