Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb3cc6e01b34cb1f…

MALICIOUS

PDF

70.4 KB Created: 2021-03-26 13:41:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bf9e08c3a61d38e5aa79dcf9470ecb5 SHA-1: 17d91f3442e2a0a7d5e61a6513b909c6e86e0a03 SHA-256: bb3cc6e01b34cb1f79105c9d0035f502ea9efa5137e2b3c741de8b16b6a40b9e
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that directs to a suspicious domain, likely for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a malicious site, potentially for credential harvesting or further payload 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://lozipotod.ru/wix?keyword=texas+waffle+maker+ebay
    • https://ravojinukof.weebly.com/uploads/1/3/4/4/134476618/fuvet_peverojokadasip.pdf
    • http://dkblogin-de.com/bootstrap_3_file_upload_formd9yi2.pdf
    • http://rimka.xyz/rig_veda_smartha_sandhyavandanam_in_kannadavg9fk.pdf
    • https://cdn.sqhk.co/remonupode/jaNHdYp/5885943568.pdf
    • http://naturka.space/ph_scale_worksheet_tesgoi34.pdf
    • https://cdn.sqhk.co/libudezetuv/HijBgj1/83232640573.pdf
    • http://digitaltoolsfor.xyz/mn_drivers_road_test_requirementsrfl5u.pdf
    • http://prostosite.site/5011455898940eg0.pdf
    • https://rajuwirorevub.weebly.com/uploads/1/3/5/3/135306937/zifinetu_loxum.pdf
    • http://reawolt.online/bokokepurufonobkwt5.pdf
    • https://paxituzupinemof.weebly.com/uploads/1/3/5/3/135303349/7750720.pdf
    • https://cdn.sqhk.co/jebozibiru/eShcb0d/warhammer_fantasy_battles_8th_edition.pdf
    • https://leruvipox.weebly.com/uploads/1/3/5/3/135347136/1525970.pdf
    • http://marketes.pro/how_to_build_a_log_splitter_for_tractory9o03.pdf
    • http://evromotors.net/renaxonabofewonogekozweu6w.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/muxozuvalubi/62722790070.pdf
    • https://uploads.strikinglycdn.com/files/2092448d-eced-4082-bd7b-b1786c16e8c0/how_to_pair_a_soundbar_to_a_vizio_tv.pdf
    • https://uploads.strikinglycdn.com/files/5aaa93ec-30b1-4db5-ae78-215d6fc50fc5/how_to_reset_epson_ink_cartridges.pdf
    • https://uploads.strikinglycdn.com/files/a11e55fc-3324-42e5-a5a0-164245f0faab/71934995238.pdf
    • https://uploads.strikinglycdn.com/files/b623d71d-0d50-49d3-9ee3-344bd6b562b2/sadusanu.pdf
    • https://s3.amazonaws.com/gowebabuxogiro/90107186064.pdf
    • https://s3.amazonaws.com/tunenijexe/aggiornare_chrome_su_android.pdf
    • https://s3.amazonaws.com/bofake/67780311024.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_off0000d4b0.bin
f00a983fbae679909970a13129c6e121066a3dd658a1bc77a67d11a4383c4c0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD4B0 5328 bytes
font_01_sfnt_off0000e6db.bin
32d23f4c13c5ff7c0ae968db97f4e95a35cb67f3762186f2db94c6e427eba6af		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE6DB 11000 bytes

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