Malicious PDF — malware analysis report

Static analysis result for SHA-256 32e11a02cbb6cd86…

MALICIOUS

PDF

79.3 KB Created: 2021-03-18 05:59:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f8eb6aa62a8fc744a01354c2d258d22 SHA-1: 2c7a1365e0e427222cf6042550ed1bf35cf2fe5b SHA-256: 32e11a02cbb6cd86cb955b3bb4e918cc82aa20d70904c1d9295c38257b4c2c12
96 Risk Score

Malware Insights

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

The PDF document contains a lure related to an 'emergency lighting certificate template' and embeds multiple URLs, one of which is flagged as malicious. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest it's designed to lead the user to download further malicious content, likely through a phishing or social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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/123?utm_term=emergency+lighting+certificate+template+ireland
    • https://cdn.sqhk.co/gabadifofibo/ii8jcXj/jubibafivatisiwitenof.pdf
    • http://copyrightsupportforlnstagram.com/mukivumamomez76dp.pdf
    • http://websporizle4.com/android_cbr_reader_open_source4lw7y.pdf
    • https://cdn.sqhk.co/fematixub/l8hbI1f/21567315090.pdf
    • https://cdn.sqhk.co/sesekopusoj/7rhbqhi/ualberta_electrical_engineering_calendar.pdf
    • http://wegoluxetas.scienceontheweb.net/aeolian_processes_and_landforms.pdf
    • http://miribut.mywebcommunity.org/72711134001.pdf
    • http://suziterunedoloj.sportsontheweb.net/banukezigowar.pdf
    • http://rivepozepuxar.mywebcommunity.org/17130508460.pdf
    • https://cdn.sqhk.co/sofetarunox/d9hc1Yn/23227232803.pdf
    • http://jubigale.scienceontheweb.net/vazaparire.pdf
    • http://ecssa.ie/wp-content/uploads/2017/01/ecssa-lo
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/f8782159-d96a-4c00-9d43-6a6f2dca20da/graco_snugride_30_lx_infant_car_seat_base.pdf
    • http://fomepufasele.atwebpages.com/principles_of_management_project_class_12_on_big_bazaar.pdf
    • http://zedowep.atwebpages.com/brave_new_world_chapter_5.pdf
    • https://uploads.strikinglycdn.com/files/8e8579a4-2fce-4f5c-8bb2-d3128f76a6bc/cuisinart_ss-10c_review.pdf
    • http://zepuwiz.atwebpages.com/86674726816.pdf
    • https://uploads.strikinglycdn.com/files/59e89153-591e-47a1-b4f7-f7f8f02a8746/why_isnt_my_ps3_controller_not_charging.pdf
    • http://gipebevu.atwebpages.com/dirodesikezolekopipewe.pdf
    • https://uploads.strikinglycdn.com/files/7b5ddf6f-b31b-4535-b1ee-17d0e783be1e/58528472189.pdf
    • https://aee666f7-65d2-4416-8089-42e5bd85255d.filesusr.com/ugd/c4036c_9ecfaa9d6a53457e89993afb541516d7.pdf?index=true
    • https://357b8bef-7330-4cfe-b31d-389db25c4d5a.filesusr.com/ugd/4c76bf_06a47ee9a97c4dc791886735bfa98a31.pdf?index=true
    • https://d52aed46-be45-4f9b-8106-cf6fc7ee66c0.filesusr.com/ugd/b148e5_cc3ef84bac10405aa3de1c857f90083e.pdf?index=true
    • https://ac6a5e95-3fab-4d4b-a7e7-0ef4c71e5929.filesusr.com/ugd/32c278_e3ae132763af4281ab6145d21932ad15.pdf?index=true
    • http://desejole.myartsonline.com/88432827876.pdf
    • https://ca39a19f-16f9-469f-ab0b-65ec0463b8d0.filesusr.com/ugd/cc9b97_64bae42f517842c1acbeda6e7f2f6d89.pdf?index=true
    • https://uploads.strikinglycdn.com/files/de9d29aa-11f9-43d7-adaa-c0cceddbac5a/jam_wireless_bluetooth_speaker_green.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_off0000f83d.bin
8de25a4c36a5421cb39b19c73db549bcc9fb83adf7e3d96b152dd180eea0cbde		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF83D 5448 bytes
font_01_sfnt_off00010aac.bin
99894ed7ddb5b3dd89df03a17a5129170b199f8696df017e4a0c57ab2c4f38ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10AAC 10712 bytes

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