Malicious PDF — malware analysis report

Static analysis result for SHA-256 dab1fa450d161f80…

MALICIOUS

PDF

76.9 KB Created: 2021-03-10 12:55:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ce378e2d9d3f5058386bab4f1d971af SHA-1: e71c66319465941613eec73866fa38016d22e585 SHA-256: dab1fa450d161f8090ed3c02c7692fb69051ce280f28a5b2c4735ca80a9c242c
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to search queries, suggesting a lure to trick users into visiting the external 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://midufefew.ru/wix?keyword=all+county+orchestra+hillsborough
    • http://lazirawolewok.getenjoyment.net/86309659544.pdf
    • http://mujubow.getenjoyment.net/23065874131.pdf
    • http://mastericy-chistoty.ru/avenida_brasil_portugues_para_estrangeirosp4nix.pdf
    • http://fofoketezifofi.22web.org/toyota_corolla_verso_2003_manual.pdf
    • http://simkosa.website/how_to_enable_4k_on_element_tv90shg.pdf
    • http://infonewsuk.site/8133007443104y7o.pdf
    • http://vaxisezawoged.scienceontheweb.net/antecedentes_historicos_de_la_fisica.pdf
    • http://gagogepatajebe.medianewsonline.com/vebewokafotuvukuwobe.pdf
    • http://efarbok.xyz/91367256048upq2p.pdf
    • http://mopexaxurip.getenjoyment.net/supenoparebudolopubezo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://fabavokawibawo.epizy.com/dunkin_donuts_drink_nutrition_facts.pdf
    • https://uploads.strikinglycdn.com/files/c92e68db-3985-49bf-8085-31549a57d944/betegatutafesuzaxavu.pdf
    • https://s3.amazonaws.com/tubukeganuji/airline_manager_2_for_pc.pdf
    • http://wazozugafen.epizy.com/collage_photoshop_psd_template.pdf
    • http://liwobeve.rf.gd/whats_the_difference_between_roomba_980_and_985.pdf
    • https://uploads.strikinglycdn.com/files/0e5b1b30-c589-4256-b52a-ddb1f045ef1c/rigixako.pdf
    • http://maboduxivugiv.rf.gd/vudodatiw.pdf
    • http://romofimor.onlinewebshop.net/18700363899.pdf
    • http://vewawisu.onlinewebshop.net/gupesofota.pdf
    • https://s3.amazonaws.com/sazomo/febobekopiligabopofaz.pdf
    • https://uploads.strikinglycdn.com/files/85718077-a6df-43f9-96cf-4d23f228acab/xukezilatorijun.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_off0000e369.bin
636e7515aa89b409e23c51ad0735687b040b6b9a1d6d89f3e025f0bec12b9ba6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE369 5176 bytes
font_01_sfnt_off0000f4fc.bin
c51cb043476c0c668d113e6fa84858a69b4ad803a6f05a929a444fd351e6bcf5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4FC 10264 bytes
font_02_sfnt_off00011828.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11828 4324 bytes

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