Malicious PDF — malware analysis report

Static analysis result for SHA-256 380d4e0fd17a795d…

MALICIOUS

PDF

137.7 KB Created: 2021-02-25 14:05:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 49640a08bed60e3d0d90844612b13efe SHA-1: 9f254ade4784885f974b8d138e13b00dd8e4ec7d SHA-256: 380d4e0fd17a795d24cb14d2869ad7da5106d005cc8ee87b65ede7d6373ed348
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, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains text related to 'david attenborough worth' and application metadata, suggesting a lure to a phishing page.

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://baarspo.ru/123?utm_term=what+is+david+attenborough+worth PDF link annotation
    • https://powelogub.weebly.com/uploads/1/3/1/8/131871449/ad51fcf21f3439c.pdfIn PDF document text
    • http://depotupunejiwo.iblogger.org/candlestick_graph_google_sheets.pdfIn PDF document text
    • https://xixekelubijaruj.weebly.com/uploads/1/3/5/3/135329585/padewodazivobupitaj.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/vabipakejujinikire.pdfIn PDF document text
    • https://bosamekuxukis.weebly.com/uploads/1/3/4/6/134672370/fanosedogu_bufipa_jumisopenol_feneruvepip.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/kiwanisaje.pdfIn PDF document text
    • https://fotofewoxa.weebly.com/uploads/1/3/4/8/134849098/772e95439f08.pdfIn PDF document text
    • http://medebupima.sportsontheweb.net/where_is_the_filter_on_frigidaire_front_load_washer.pdfIn PDF document text
    • http://bubuwem.iblogger.org/christian_songs_2019_free.pdfIn PDF document text
    • https://cdn.sqhk.co/gijesali/ig26TL7/real_car_racing_2_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/kovezozeseg/Ysi1geI/the_escapists_2_pocket_breakout_ios_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tuwutexo.onlinewebshop.net/92654246288.pdfIn PDF document text
    • https://s3.amazonaws.com/xepululejiwof/maths_adding_worksheets_year_1.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/56627639387.pdfIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/10546169397.pdfIn PDF document text
    • https://s3.amazonaws.com/buwosevax/funilulu.pdfIn PDF document text
    • http://gunebudapuko.epizy.com/enterprise_cobol_performance_tuning_guide.pdfIn PDF document text
    • http://kalilom.epizy.com/nufapizimenuwodeb.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/mokapixepaluk.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_off0001de3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DE3F 5360 bytes
SHA-256: a4fb0781002c155d68cbe6654d10cf55828970cfb3ffb63047542500c638e304
font_01_sfnt_off0001f08a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F08A 12240 bytes
SHA-256: 5bbd9903e64a9a4508d2fc7f24c58585b3a7a7d79ab7ce3c80474014bf4bd883

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