Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6b1435bc606da50…

MALICIOUS

PDF

79.5 KB Created: 2021-03-04 20:39:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93a1f6b87a434656687213d200fb5100 SHA-1: aba300fb339adeacf9da291f09ea2f1728f79b2a SHA-256: e6b1435bc606da50cbb2e23bea43e8bf39e10e241d3412a0abafda120a6e0dbe
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a suspicious domain, likely to host a malicious payload or phishing content. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though partially corrupted, suggests a lure related to obtaining in-game items to entice clicks on the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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
  • 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/123?utm_term=how+to+get+bookshelves+in+minecraft+fast
    • https://cdn-cms.f-static.net/uploads/4383137/normal_6023f9c798f79.pdf
    • https://static.s123-cdn-static.com/uploads/4447466/normal_5fdf924a32209.pdf
    • https://cdn-cms.f-static.net/uploads/4451377/normal_603555b73ee49.pdf
    • http://zogonanumij.22web.org/31937008416.pdf
    • http://revilokepudidu.mygamesonline.org/vovanaselusi.pdf
    • https://sutapupimode.weebly.com/uploads/1/3/4/6/134615637/d8d680ff7a75a0a.pdf
    • https://sikowegapewabi.weebly.com/uploads/1/3/5/9/135975971/sivogikowi-tonif-pusavelakita.pdf
    • https://bujasosepamus.weebly.com/uploads/1/3/4/6/134626994/fevutarunol_nidanadetapivi_sabus_xatepux.pdf
    • https://wojanoxunoliwam.weebly.com/uploads/1/3/5/3/135394081/liraxutapo-patub.pdf
    • http://tezuveripoxub.mypressonline.com/suzuki_sidekick_1998_engine_specs.pdf
    • http://dodajavux.scienceontheweb.net/taylormade_r15_driver_shaft_options.pdf
    • https://rifewageza.weebly.com/uploads/1/3/5/3/135349229/roduvadefugar_ludorujotuf_lawupavibag_dusuzejavik.pdf
    • https://cdn-cms.f-static.net/uploads/4387566/normal_6019d7a9c9249.pdf
    • https://cdn-cms.f-static.net/uploads/4453575/normal_5fd83fb52dbf4.pdf
    • http://powajaxib.medianewsonline.com/59793038343.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6ff70fdb-e8d2-46b3-9246-a6cf63bcaa62/excel_vba_arraylist_add_item.pdf
    • http://waxivetik.epizy.com/25003610688.pdf
    • http://xumizaxojumiko.epizy.com/90228887769.pdf
    • http://muxulofope.epizy.com/what_to_do_when_your_microwave_is_not_heating.pdf
    • https://uploads.strikinglycdn.com/files/3ece5f8a-b19c-42fb-9d53-67128ba2c24e/vibeberolofomop.pdf
    • http://ruguwusizomu.epizy.com/kolkata_police_puja_guide_2019.pdf
    • http://vekagurose.rf.gd/universit_de_marseille_formation__distance.pdf
    • https://uploads.strikinglycdn.com/files/5ead295c-d846-4f39-a730-0135b1bb136e/what_does_the_number_12_represent_biblically.pdf
    • https://uploads.strikinglycdn.com/files/98103e7c-b9dd-4b47-93c5-9d6ca125edf0/85906672789.pdf
    • https://uploads.strikinglycdn.com/files/017beba7-e9c4-4bd9-b3df-b565cfcd789d/who_are_lokis_biological_parents.pdf
    • http://raxaxeve.rf.gd/gonococcal_endocarditis_case_report.pdf
    • http://reduxaxu.epizy.com/40169833130.pdf
    • http://kutoduno.rf.gd/glossary_of_soil_science_terms.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f931.bin
979a2c619dd9a02d11278c0a0ec074c95bd19ed891f73ea60eb13e9e63bb0532		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF931 5612 bytes
font_01_sfnt_off00010c41.bin
7e9b8895d87dd7b4c16b041b4e4bedce7fe3f8931003a698100e34e04f68c528		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C41 10700 bytes

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