Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea2bf109596723ab…

MALICIOUS

PDF

80.1 KB Created: 2021-03-30 23:20:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1c49b41aa64e5abf342f258315166519 SHA-1: a9a224c5dadda2260d2f995b1b07ed78f86aaa6a SHA-256: ea2bf109596723ab332501510341357ccbd4de3cd6605319955884f683d24899
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing campaign. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content, potentially for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://zajinet.ru/wix?keyword=pathfinder+investigator+talent+guide
    • http://mosovonetuvu.iblogger.org/12349138586.pdf
    • https://static.s123-cdn-static.com/uploads/4424011/normal_5fe173da19e3e.pdf
    • http://supernefritroller.xyz/gupoxuzidoloraki4woza.pdf
    • https://cdn.sqhk.co/gukokefa/adifGjg/picsart_wallpaper_hd_photo_save.pdf
    • http://rapiwanijisage.scienceontheweb.net/domain_driven_design_c.pdf
    • http://tixshopclub.fun/how_to_write_an_article_on_social_mediadgty1.pdf
    • https://cdn.sqhk.co/balaragu/5ifdhiK/15752473911.pdf
    • https://cdn.sqhk.co/nepozenilu/XnJnAif/xajunumafikedit.pdf
    • https://cdn-cms.f-static.net/uploads/4446638/normal_5fe995105b659.pdf
    • https://cdn-cms.f-static.net/uploads/4370278/normal_5fdb2c7086a25.pdf
    • http://xuzerujagojagip.scienceontheweb.net/gta_san_andreas_cheats_free_download.pdf
    • http://avtoshkola-region26.ru/gigagikenqug22.pdf
    • http://agent-ritual495.online/2021_tesla_model_3_interior_dimensions7fr0e.pdf
    • https://cdn.sqhk.co/safubuguva/jfjcoYt/download_league_of_berserk_mod_apk.pdf
    • http://disupiwalu.mypressonline.com/niramej.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://pivimufe.atwebpages.com/66177432288.pdf
    • https://uploads.strikinglycdn.com/files/2d7a76c4-9d1f-47e0-8c59-2d4ecc94180d/71608599147.pdf
    • https://uploads.strikinglycdn.com/files/aef9ab93-da8c-4d47-b780-b5bba298348e/rowejobobof.pdf
    • https://uploads.strikinglycdn.com/files/3afa336d-9fca-4746-85ef-29ced1979196/section_138_negotiable_instrument_act_amendment.pdf
    • https://uploads.strikinglycdn.com/files/17fde9f6-5bcb-46dc-a9f4-c6fd0ea8e1ac/excel_sheet_with_formulas_download.pdf
    • http://xirozaza.onlinewebshop.net/29734642172.pdf
    • https://uploads.strikinglycdn.com/files/7977f2d9-af7e-490a-88f1-e4b4a9f6121c/what_to_do_if_your_swiffer_wet_jet_wont_spray.pdf
    • http://falagisorinawe.rf.gd/bijevutagukugaf.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_off0000ef60.bin
e46a5dcbc79a0ddadbe6e033f435a570245171a273347cebab8f52f5be070485		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF60 5112 bytes
font_01_sfnt_off000100bc.bin
16b8c077a23ce30a54c1cd25353ca72d5017beff30712e29f1079184707ec621		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100BC 10432 bytes
font_02_sfnt_off0001244b.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1244B 4324 bytes

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