Malicious PDF — malware analysis report

Static analysis result for SHA-256 991300a5279e9139…

MALICIOUS

PDF

75.4 KB Created: 2021-06-09 04:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 9c52d5677a73be49f5cc5c3a74234722 SHA-1: 3dd7ecea516e494658c6d9845076b93a5ce71891 SHA-256: 991300a5279e913916b17ab9d939f9dd1fb0e21a3e092e6cc6373ce0c01f7d57
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or phishing page. The document body, though heavily obfuscated, suggests a context related to a legal case, aligning with common phishing lures.

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://inwebjor.ru/pbw?utm_term=state+of+ga+vs+denver+fenton+allen PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b82c6c69-3b6f-4ffb-a9de-b17a6a55bfe0/90498114342.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/819cab6f-f978-4604-819e-e703aa36babf/gaxogikebaba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93d0c5fb-6124-4c17-b157-6e5e831bb780/75373473783.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa20086b-d989-48da-a58a-1f854b6ae462/21674319245.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66d11512-63f7-4b1a-9c9b-c2780df1c179/m_audio_fast_track_drivers_mac_el_capitan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d38af39b-9f78-44fa-87c4-a72e70045f18/the_house_of_the_spirits_chapter_10_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6950e8b2-36bb-4044-a8d0-ac8b6deda023/6423244685.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad568fbc-dd1a-453d-a22d-1768144a4d35/wikefekuledexewumuxad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3d19f56-08a5-4b7e-a13b-3787e34badd7/61290456534.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad457b60-1c0c-4553-aefc-79fc1cb8d643/bulufubevomuke.pdfIn PDF document text
    • http://gaxezuv.pbworks.com/w/file/fetch/144808479/gobajozedekamibemesek.pdfIn PDF document text
    • http://zezimin.pbworks.com/w/file/fetch/144422139/tableau_server_training_ppt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be968a79-cad5-46ca-907e-1639f8eb8e8f/4860852307.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b7a2485-c298-4d48-8f24-ff649a14bab5/bissell_spotbot_pet_deluxe_parts.pdfIn PDF document text
    • http://nagomax.pbworks.com/w/file/fetch/144423423/dapinivobububovu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97d11bc3-7b55-41f1-8c12-c16a11ab82d9/the_andromeda_strain_1971_full_movie_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5715a1cc-90ee-484d-b8fe-1c5982955237/71974840444.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a5e7ca3-14f3-43ec-9e41-e6b81e645d0a/how_do_you_reset_a_ge_z_wave_toggle_switch.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbf6c44e-d38c-4c69-a1fe-3d947d156fc8/easy_piano_fake_book_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43dbdd4d-7fa6-4c17-9c33-59a631f3795a/killing_floor_2_elysium_reddit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eccb4384-a59d-47b1-989e-aad2af5cb213/25271753011.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB25 5240 bytes
SHA-256: 72d434a93aceed7bfdc421c17c3208a74cedfa55d55c314da5dcf67ed6238ab7
font_01_sfnt_off0000fd0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD0E 10344 bytes
SHA-256: e5231d92935a49837d4259f67031ee830693a0340c39174f0e1c4fd315bb3da5

Open this report in the interactive analyzer, or submit your own file for analysis.