Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee1c3ee1c3bf613b…

MALICIOUS

PDF

85.0 KB Created: 2021-04-26 23:45:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: d2091b4531b35542b339823e73a3f3c8 SHA-1: 4b8b524103c6c1d5c53563731ed2750e1420b117 SHA-256: ee1c3ee1c3bf613b6110e8dca80417b2e71c110c6eae86282171ec8e3592a273
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, 'nipisod.ru', which is likely part of a phishing or malware distribution scheme. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of malicious URLs suggests an attempt to redirect the user to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://nipisod.ru/strik?utm_term=reel+music+roger+hickman+2nd+edition PDF link annotation
    • http://mereritijazos.scienceontheweb.net/63256313559.pdfIn PDF document text
    • http://lapiwudoxavov.scienceontheweb.net/cedaw_agreement.pdfIn PDF document text
    • http://sijemogezabusa.sportsontheweb.net/travel_rock_ficha_medica.pdfIn PDF document text
    • http://jotafitosixa.getenjoyment.net/bukuperefig.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/dungeons_and_dragons_character_sheet_3.5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cdfd0167-d4d3-4c4c-8c7d-d9a8f53e213b/how_to_get_the_hiking_merit_badge_counselor.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/vishnu_sahasranamam_for_beginners_with_english_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/283331a7-7e08-4f18-ace0-ce5e94f8277a/23598881502.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/tidilaj.pdfIn PDF document text
    • http://wuragumok.atwebpages.com/plastic_degrading_microorganisms.pdfIn PDF document text
    • http://nosawakudik.myartsonline.com/blanking_tool.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/broadcaster_bouquet_trai.pdfIn PDF document text
    • http://wurupebolem.rf.gd/who_is_playing_the_darkling_in_shadow_and_bone.pdfIn PDF document text
    • https://s3.amazonaws.com/jaxesabi/indian_food_calorie_chart_in_marathi.pdfIn PDF document text
    • http://wikijivifefa.rf.gd/afrisam_bursary_2020_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/how_to_do_half_life_problems_college_algebra.pdfIn PDF document text
    • http://ruvemad.myartsonline.com/17238953233.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d016fbe-b064-4625-b0df-6ed81d7e9e98/bosemabujuzujuzofewo.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/73370663460.pdfIn PDF document text
    • https://s3.amazonaws.com/lovetijif/gokuwadenuniwigatapim.pdfIn PDF document text
    • https://s3.amazonaws.com/podawakumepewez/codes_for_olevia_tv.pdfIn PDF document text
    • http://papinosijoku.rf.gd/fate_in_oedipus_rex.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4FF 5556 bytes
SHA-256: 1be04738cb3ab880a4d7eff57101dc88ae3fc6cfb6c9756a1f40c017df5b6827
font_01_sfnt_off000107b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107B5 11412 bytes
SHA-256: 78c9214a8c2bf7353517e44967c0da63b2cb2713fac5dc7ad77283c91bf85f07
font_02_sfnt_off00012ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12ED6 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e

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