Malicious PDF — malware analysis report

Static analysis result for SHA-256 7996cbcba281d0c5…

MALICIOUS

PDF

79.4 KB Created: 2021-02-28 02:43:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 029d03545f853f90d10f8a25f76e1647 SHA-1: d3d420b19d5c0067d7883b03b43e15563b3fb6b8 SHA-256: 7996cbcba281d0c51bfd808895c17fc6ba3ebe7ce9bd20d7c36120d67241ae4c
96 Risk Score

Malware Insights

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

The sample was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL `https://lozipotod.ru/wix?keyword=exit+38+rock+climbing+guide+pdf` suggests a phishing or malware distribution lure, disguised as a rock climbing guide. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic point towards a malicious document designed to trick users into visiting a compromised URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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=exit+38+rock+climbing+guide+pdf PDF link annotation
    • https://cdn.sqhk.co/noluxokeruma/A1UXies/dinner_restaurants_near_me_now.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455658/normal_6039296173343.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373757/normal_602fc81fbb8cf.pdfIn PDF document text
    • http://xelibirujegid.mywebcommunity.org/attack_on_titan_1_full_movie_tagalog_version.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450240/normal_5fd3b031c486a.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/how_to_tell_size_of_pandora_ring.pdfIn PDF document text
    • https://cdn.sqhk.co/gefimiwotux/ifjjUif/sight_words_learning_games_flash_cards_literacy_first.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404969/normal_6000643a7604d.pdfIn PDF document text
    • https://cdn.sqhk.co/meradipuwiz/CE6hhbH/52150977417.pdfIn PDF document text
    • http://fastpysystem.online/how_to_make_an_introduction_about_myselfy0025.pdfIn PDF document text
    • http://alex-chekalev.com/netflix_on_laptop_windows_103hupz.pdfIn PDF document text
    • http://nanonewe.scienceontheweb.net/patanjali_yoga_sutras_in_hindi_by_vivekananda.pdfIn PDF document text
    • https://cdn.sqhk.co/fupupusamun/chdibif/dolphin_bubble_shooter_2_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/sepovili/jPZ9Igg/14135492838.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://tifavamifikas.myartsonline.com/theres_a_map_on_my_lap.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/new_bollywood_movie_filmywap_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/date_format_day_month_year_in_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/55390143621.pdfIn PDF document text
    • http://xuvekixofeku.onlinewebshop.net/how_to_add_profile_photo_on_youtube.pdfIn PDF document text
    • https://s3.amazonaws.com/zopenave/candlewood_lake_fishing_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/30609035558.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED50 5556 bytes
SHA-256: d85a70d31ef17f48e2c18be0b092039685d100bb15ad316400514ef4d1ddab89
font_01_sfnt_off00010017.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10017 9900 bytes
SHA-256: 2b3535fe5d833cadf3b010163163a824ba6860012d807d4a39c802e5173ff773
font_02_sfnt_off0001220f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1220F 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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