Malicious PDF — malware analysis report

Static analysis result for SHA-256 29709cd90abebdc1…

MALICIOUS

PDF

78.6 KB Created: 2021-03-07 20:23:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c85c66c8e79d4c85dd7ffe20fa523a4 SHA-1: bf8bdf11cf1203d74337639ea165e33feb21ba50 SHA-256: 29709cd90abebdc1e87b4e6813abcd29f9e2ed6096c63b264af586c52d60dbc6
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though partially corrupted, suggests a lure related to 'Fox's cunning pathfinder'. The embedded URL points to a suspicious domain, likely serving as a phishing or malware distribution site. No scripts were extracted, but the presence of external URIs and the overall classification strongly suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://kuzutuzo.ru/wix?keyword=fox%2527s+cunning+pathfinder
    • http://bcpzon4segurabetaviabcp.com/weretikoba2e358.pdf
    • http://mixit.info/iliad_and_odyssey_movie_downloadppwyp.pdf
    • http://kijekidajefi.getenjoyment.net/what_does_alpha_male_mean_in_texting.pdf
    • http://tersq.space/jozapesigagovafereyjtzo.pdf
    • http://fastgetme.online/how_to_write_a_short_romance_novel5y2ki.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/dogevazapiwediw/42382924499.pdf
    • https://s3.amazonaws.com/dosipive/xegaxoduxaxepatet.pdf
    • https://s3.amazonaws.com/dugibabafod/project_discovery_phase_template.pdf
    • https://s3.amazonaws.com/gafedupeba/75603726291.pdf
    • http://vilatelisoto.onlinewebshop.net/diccionario_strong_espanol_online.pdf
    • https://s3.amazonaws.com/wulagisi/kapupodolufegakuxabadi.pdf
    • http://xujided.onlinewebshop.net/40781369403.pdf
    • https://s3.amazonaws.com/wizedumi/31722023256.pdf
    • https://s3.amazonaws.com/jikopot/mulowakamesufivexapigob.pdf
    • https://s3.amazonaws.com/mibiwivanetuj/top_10_brain_training_apps_for_android.pdf
    • https://s3.amazonaws.com/xeropizuwe/reported_to_authorities_in_spanish.pdf
    • https://s3.amazonaws.com/zemigiduwagafu/iowa_code_232.26p.pdf
    • http://vigexosav.myartsonline.com/how_to_connect_iphone_to_home_wifi_network.pdf
    • https://s3.amazonaws.com/satuja/24181367045.pdf
    • https://s3.amazonaws.com/tejuvonixag/rezokododowelulojodogoz.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_off0000ea37.bin
0e655a7ee6cf7cd48cb78e95fda3325d0454f8e90c6b6831ff882a6d64311ee3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA37 5324 bytes
font_01_sfnt_off0000fc57.bin
b86ac08981a174135078519711bf8eaa4bb11ac4c4d17506ac179c3a8f055a3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC57 10144 bytes
font_02_sfnt_off00011f2b.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F2B 4324 bytes

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