Malicious PDF — malware analysis report

Static analysis result for SHA-256 486c94997d1c3e9d…

MALICIOUS

PDF

82.5 KB Created: 2021-03-16 01:33:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bbcb0a8f5ff3088f701e9b1a57b11ea5 SHA-1: 7e2d00a8ef2c7e624a3f161685d7b3c941e5a7aa SHA-256: 486c94997d1c3e9dd6e9396e4c08c4c0ebc5cc2506bdaca53bd32eedd1e90440
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. The document body is heavily obfuscated, but the presence of the external URI is a strong indicator of a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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=skills+gap+analysis+report
    • https://cdn.sqhk.co/fuluzagile/higjhgS/nokevorujadanor.pdf
    • https://cdn.sqhk.co/pasivuzuke/zhhjhhi/covid_briefing_live_uk.pdf
    • https://cdn.sqhk.co/nurijodefa/gfHwiaa/ultimate_car_driving_simulator_apk_pc.pdf
    • https://cdn.sqhk.co/wanadujogo/jb3gilb/among_us_colouring_book.pdf
    • http://derilezin.sportsontheweb.net/energy_storage_devices.pdf
    • http://rumigiwataj.getenjoyment.net/49545656176.pdf
    • https://cdn.sqhk.co/pujapipiwat/Sje6jdi/history_of_colonialism_in_nigeria.pdf
    • https://cdn.sqhk.co/kurotevu/hhctjfF/the_communist_manifesto_full_text.pdf
    • http://fajujefa.getenjoyment.net/nuxibafokujipo.pdf
    • https://cdn.sqhk.co/kazamepa/o9ghFGr/7843815303.pdf
    • https://cdn.sqhk.co/keximovib/hejhNha/pisufidojuse.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/1b255ff4-d3ff-4f4c-98e6-8774c88f9be7/44308505286.pdf
    • https://uploads.strikinglycdn.com/files/94f79565-287a-4e38-afb2-4078b04fd076/death_note_movie_ending_explained.pdf
    • https://s3.amazonaws.com/fulazelof/camus_the_myth_of_sisyphus.pdf
    • https://s3.amazonaws.com/baxunaf/pijefogosojedevigi.pdf
    • https://uploads.strikinglycdn.com/files/3057281f-364a-439c-ac73-bfcd472a8871/how_do_i_reset_my_ge_cafe_range.pdf
    • https://s3.amazonaws.com/wolawatin/thanos_inevitable_meme_template.pdf
    • https://uploads.strikinglycdn.com/files/3c4faece-0d70-4bbc-b8c2-63a0334fe09e/kusebizode.pdf
    • https://s3.amazonaws.com/xefejevife/cyber_security_vs_information_security.pdf
    • https://s3.amazonaws.com/wuzalugiseto/whatsapp_stickers_not_showing_on_android.pdf
    • http://jibimom.myartsonline.com/blister_packaging_process.pdf
    • https://s3.amazonaws.com/fejenijovekozu/air_penguin_hack_apk.pdf
    • https://uploads.strikinglycdn.com/files/c381c921-a427-423a-89f9-f9e1b0d064ef/pufoz.pdf
    • https://s3.amazonaws.com/julaxel/2141943130.pdf
    • https://s3.amazonaws.com/donarepemi/diablo_3_wizard_gems_guide.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_off0000f7ba.bin
35f3671b9ce8d971cd6cb740d581ef92f7efaf592528496daae70656f1a446a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7BA 5044 bytes
font_01_sfnt_off000108e7.bin
693fb26ebf412e252d0c33ef713f0e35b12649079416f3196a54f5f241f8271b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x108E7 11048 bytes
font_02_sfnt_off00012e7c.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12E7C 4324 bytes

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