Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea7b2ce1b01154ab…

MALICIOUS

PDF

76.6 KB Created: 2021-03-16 00:27:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e96364aaadc051329d05fd75abdb41c8 SHA-1: 9ee66f5bbf5df7024027d9192d16fa38252d0535 SHA-256: ea7b2ce1b01154ab8c10b77703e22a889b9c9df68949cca9cc6fdeeafc9dfb79
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. ClamAV detection and ML classification strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of an external URI and the overall classification suggest the document is designed to lead the user to a malicious resource.

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://pelibifir.ru/123?utm_term=eel+river+steelhead+fishing+guides
    • https://static.s123-cdn-static.com/uploads/4417536/normal_5ffa8a52856bd.pdf
    • https://cdn-cms.f-static.net/uploads/4424330/normal_601f00804c750.pdf
    • http://logmeinnow.xyz/42643170831h16eo.pdf
    • http://a1metromovers.com/autism_puzzle_piece_coloring_pagellfxn.pdf
    • http://zenafek.iblogger.org/axxess_steering_wheel_control_interface_manual.pdf
    • http://supariwepexafat.mywebcommunity.org/6854639919.pdf
    • http://zekifafeter.scienceontheweb.net/mythologies_roland_barthes_download.pdf
    • http://center-san.ru/32268429032pdaca.pdf
    • http://thecaffeinatedstudent.com/como_usar_el_libro_azul_de_autosw5o17.pdf
    • https://cdn-cms.f-static.net/uploads/4470020/normal_601b2f5ceb66f.pdf
    • https://cdn-cms.f-static.net/uploads/4529024/normal_6011efce77408.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fuwenepuxudamu.epizy.com/visual_basic_2020_access_database_tutorial.pdf
    • https://uploads.strikinglycdn.com/files/03279683-66f9-4dbd-95f6-022faec3f7a5/how_long_to_learn_computer_networking.pdf
    • https://s3.amazonaws.com/zufojadibi/android_studio_app_free_source_code.pdf
    • https://uploads.strikinglycdn.com/files/2c07f1a4-431d-44c3-bda0-52cc290e4e72/vitisutarozabudoxofiterog.pdf
    • http://wiwafejopof.epizy.com/kifefa.pdf
    • https://uploads.strikinglycdn.com/files/14b3af67-9c11-4285-970c-6a1fdf5b21e0/5780694169.pdf
    • https://s3.amazonaws.com/fosalizuzu/implementation_process_powerpoint_template.pdf
    • https://uploads.strikinglycdn.com/files/ab8bfa8a-f27f-4741-94da-4a9f7fb76d07/ask_the_dust_2006_full_movie_watch_online.pdf
    • http://zalikizo.epizy.com/centrica_plc_annual_report_2005.pdf
    • https://uploads.strikinglycdn.com/files/580feb3c-a9ad-4c94-9098-9cef13ae12a7/does_turtle_beach_recon_70_work_on_xbox_one.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_off0000ef51.bin
9feba55e0d7d35aa6361d8f9e48008356557036082b5bb2e94461a19d7cf15a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF51 5184 bytes
font_01_sfnt_off000100f9.bin
4c44357e6874cbad39d13dc98a23f1462e6756b434211556964b44afe6c3f1d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100F9 10660 bytes

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