Malicious PDF — malware analysis report

Static analysis result for SHA-256 b15c9a660e79c642…

MALICIOUS

PDF

79.3 KB Created: 2021-03-23 18:15:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1ea936d87c9e629fc5687205219a705c SHA-1: 7bea0b473e75971c25c808d6bda5a69f2c689819 SHA-256: b15c9a660e79c6424148c66a11d65271c31f9be0c94c5736ac2fe77578e960d5
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains an embedded URI pointing to a suspicious domain, suggesting it is designed to trick users into downloading further malware. The presence of a download button heuristic further supports this phishing-like lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jumiwimov.ru/wix?keyword=2020+match+day+statistics
    • http://zaxunux.iblogger.org/60984350704.pdf
    • http://meboxofunufox.iblogger.org/jemaluzufuxarubaso.pdf
    • http://kidupat.getenjoyment.net/tevinasewimodoporenawo.pdf
    • http://deluwotitawugo.iblogger.org/dozigesuxodexibevokakaj.pdf
    • http://neviresutuv.iblogger.org/66051054749.pdf
    • http://jikusofare.mywebcommunity.org/fulexa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/nitizobuv/64302246393.pdf
    • https://uploads.strikinglycdn.com/files/94138b7f-9bc6-43bf-9374-1e46804a62f3/zuwalaziv.pdf
    • https://s3.amazonaws.com/fidefofudi/85106987996.pdf
    • https://uploads.strikinglycdn.com/files/1fb0312f-5c72-4a54-9ee0-c571af2d293b/how_to_get_hyundai_remote_start_out_of_valet_mode.pdf
    • http://nobapizasiwe.myartsonline.com/math_algebra_word_problems.pdf
    • https://s3.amazonaws.com/tiluwisulepam/64590465900.pdf
    • http://tudozujuxijoz.rf.gd/daily_expense_excel_sheet_for_restaurant.pdf
    • https://s3.amazonaws.com/poguvelefa/spellbreak_battle_royale_platforms.pdf
    • https://s3.amazonaws.com/sonutopexaramuf/44978010914.pdf
    • https://s3.amazonaws.com/fefurorobumi/58178581054.pdf
    • http://guxefezuguwi.epizy.com/48611312649.pdf
    • http://vasugam.rf.gd/6th_grade_probability_worksheets.pdf
    • http://xowobovu.myartsonline.com/us_postal_service_priority_mail_box_sizes.pdf
    • https://uploads.strikinglycdn.com/files/ba5f9dba-3bc9-4960-af7d-79c094e99bad/what_are_the_best_business_ideas_in_philippines.pdf
    • http://bikemeno.rf.gd/4035099336.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec05.bin
4747faf8fb31c690a863d4d737ba627ea6b6abf9e3ac6c648ef999762c0f9724		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC05 4784 bytes
font_01_sfnt_off0000fc3f.bin
4f286ce95ee4e83556dc9a45eeb5c843e0b195acd69e86b1fccfba1b6532b1cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC3F 11060 bytes
font_02_sfnt_off000121ff.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x121FF 4324 bytes

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