Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd518cdf5b5aa17d…

MALICIOUS

PDF

87.1 KB Created: 2021-03-27 19:39:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c29120b4bf778bf86929c5cf176f3411 SHA-1: 78206b69e50f77359a8472bcc0c6c9a0bbf8194d SHA-256: bd518cdf5b5aa17def941f945997b569965649a5cbddcb93174b556a07f552b9
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document body, though heavily obfuscated, suggests a lure related to a sports record, directing the user to the URL https://jumiwimov.ru/wix?keyword=iowa+high+school+softball+strikeout+record. This URL likely hosts a phishing page or a further stage of malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://jumiwimov.ru/wix?keyword=iowa+high+school+softball+strikeout+record
    • https://nefajawijar.weebly.com/uploads/1/3/6/0/136081949/2e6c4ce728f56.pdf
    • https://cdn.sqhk.co/mibujatone/1jaZ0hd/65222671841.pdf
    • https://cdn.sqhk.co/bikuwizatag/BKLjcl8/starbucks_secret_menu_2019_tik_tok_drink.pdf
    • https://sibetufubexab.weebly.com/uploads/1/3/2/7/132712005/vuziliv.pdf
    • https://jofanota.weebly.com/uploads/1/3/2/3/132302765/491241.pdf
    • https://cdn.sqhk.co/siripeka/dkgdjbC/21037953473.pdf
    • https://cdn.sqhk.co/bezugisav/70dthhk/gajal.pdf
    • https://cdn.sqhk.co/fatepotax/fjcuOgf/exponential_idle_supremacy_guide.pdf
    • http://kewokuxumuzig.medianewsonline.com/weber_carburetor_manual.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zolerazowubow/razufobaripigonodefadejo.pdf
    • https://s3.amazonaws.com/kufazete/xinisu.pdf
    • http://dibulokesimerog.rf.gd/wagavilup.pdf
    • https://s3.amazonaws.com/jevedijadiki/19483649354.pdf
    • http://jasunusemoki.onlinewebshop.net/acidose_lactique_metformine.pdf
    • https://s3.amazonaws.com/gurupixabogivaz/43774269255.pdf
    • http://kevanuxedogiko.rf.gd/renejimukuxewa.pdf
    • http://fezovinu.epizy.com/90187597813.pdf
    • https://uploads.strikinglycdn.com/files/908727b2-58bc-4f61-b8f7-e3da635d9ef5/wired_for_story_goodreads.pdf
    • https://uploads.strikinglycdn.com/files/ffb8fda8-2f88-4a01-8a8d-e0b80ddc67dc/can_police_arrest_without_proof.pdf
    • http://tixenolas.epizy.com/how_to_dismantle_rowenta_iron.pdf
    • http://vekimawo.rf.gd/largest_battery_android_phone.pdf
    • https://uploads.strikinglycdn.com/files/777c5124-eba0-44da-8724-1f5ebb822227/remapegomexelaron.pdf
    • https://uploads.strikinglycdn.com/files/7d42ae5d-29bd-4f60-8757-ea29875326b6/how_many_days_does_it_take_to_mine_1_bitcoin.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_off00011608.bin
ea4151d5c6a12d01f01e9af59fb739e7b10c18314e3d92a04016d9018861a6ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11608 5516 bytes
font_01_sfnt_off000128da.bin
d0868e777ed801e62469cad44cb43ff8fb622274d6294baa4e16b65cda2ec629		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128DA 10740 bytes

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