Malicious PDF — malware analysis report

Static analysis result for SHA-256 79071d2e64f77f07…

MALICIOUS

PDF

82.4 KB Created: 2021-03-14 14:45:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97d0c9f0e624be3620090ec01ce47756 SHA-1: deebba89749940ddbc8b8e4d519848110f98d73c SHA-256: 79071d2e64f77f079d91d5db32d0f596d066cd4a37548999f517225a40a202de
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a phishing site, disguised as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. While no scripts were directly extracted, the PDF structure and embedded URI heuristic point to a malicious document designed to trick users into visiting a compromised URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xezojetit.ru/wix?keyword=harbor+of+rio+de+janeiro+location
    • https://depopuxa.weebly.com/uploads/1/3/4/8/134893869/lofafoluxebu.pdf
    • https://cdn.sqhk.co/sudofeno/djiBkjc/bing_wallpapers_hd_free.pdf
    • http://copyrightsupporthelpcenter.com/yasar_nuri_ozturk_sozleri4hvwp.pdf
    • https://pamokevavazodo.weebly.com/uploads/1/3/4/3/134386981/76094e70ee3e6d5.pdf
    • http://lotto-investclub.com/statistical_shape_analysis_with_applications_in_rd2qtz.pdf
    • http://zugugalepew.mypressonline.com/bijamilaponumuw.pdf
    • http://bosemefawixuwov.mypressonline.com/48405627785.pdf
    • https://dugepawegozil.weebly.com/uploads/1/3/1/6/131606694/6727935.pdf
    • http://instapodarok.site/romance_of_the_three_kingdoms_xiv_pc1cpq3.pdf
    • http://predouche.xyz/what_is_the_towing_capacity_of_a_2005_dodge_ram_1500zcfhm.pdf
    • https://cdn.sqhk.co/setuboluraje/jjVgjjf/boxujop.pdf
    • https://jobalexaxikut.weebly.com/uploads/1/3/4/8/134892204/zipesasi-fivorilowa-fuwupif-suvobifos.pdf
    • https://cdn.sqhk.co/denirinodo/idhbxBA/horse_coloring_book.pdf
    • https://kadonomu.weebly.com/uploads/1/3/1/4/131454950/6bbdcace4afcbb8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/7ba8b175-5f57-4bbe-92cb-d8cb6791d23f/zufolapotogi.pdf
    • https://uploads.strikinglycdn.com/files/447a49da-befc-43c6-931c-67442d76142e/xbox_one_keeps_beeping_and_ejecting_disc.pdf
    • https://s3.amazonaws.com/mokixetat/fapawegevuxili.pdf
    • https://s3.amazonaws.com/fefurorobumi/what_is_cub_scout_motto.pdf
    • https://uploads.strikinglycdn.com/files/0d25019d-672f-45c2-be4a-fdf6b6cf652d/wewujevumex.pdf
    • https://uploads.strikinglycdn.com/files/8996fc72-3351-480d-bdae-e7b944054765/history_of_south_african_economy.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_off0000f59e.bin
7bb0347e38f3983860f2166c14fad602b9c1d4c3d6551457db4bfe0f982ed92e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF59E 4804 bytes
font_01_sfnt_off000105f4.bin
08cc0ad17b2908113c14df9d49c979d77c4a817744b33b986054525f4440659c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x105F4 11668 bytes
font_02_sfnt_off00012c41.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12C41 4324 bytes

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