Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f6dd57dd5129e8a…

MALICIOUS

PDF

73.0 KB Created: 2021-02-08 21:08:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 5e69c8f17c9ccc3140fb6266e8a5abe8 SHA-1: e3a11a417640b61476e49b3233e7df7c42223de9 SHA-256: 7f6dd57dd5129e8af940e6d6eec5c6a4880d4e8d7f2cae5d885de791e82eb5c5
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL and the document's metadata suggest a phishing or social engineering lure, specifically disguised as a free handbook download. While no scripts were explicitly extracted, the PDF format can embed JavaScript, which could be used to facilitate the download or further compromise.

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://jottigo.ru/123?utm_term=essential+oils+handbook+free+download PDF link annotation
    • http://libertinemodels.com/fun_race_3d_download_for_android4unig.pdfIn PDF document text
    • https://cdn.sqhk.co/desogepupema/e2oPOz3/39453907642.pdfIn PDF document text
    • https://cdn.sqhk.co/peluxisomex/jijcxmh/wovoxuluzutufubox.pdfIn PDF document text
    • https://cdn.sqhk.co/liralimujote/YLmjWH8/reuters_world_news_headlines.pdfIn PDF document text
    • http://reduslimitaly-official.site/eight_of_wands_reversed_tarot_guide6u0x5.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/0JWhdTE/local_bars_in_las_vegas.pdfIn PDF document text
    • http://loberas.22web.org/carry_on_jatta_2_hd_songs.pdfIn PDF document text
    • http://lupelev.22web.org/android_apps_on_iphone_6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/68117870250.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/acer_iconia_one_10_android_oreo.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/aver_vb342_datasheet.pdfIn PDF document text
    • http://vemewef.rf.gd/54142318385.pdfIn PDF document text
    • http://puwojewemuxa.epizy.com/nuzul.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/livro_os_axiomas_de_zurique.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/numorimokotometezabume.pdfIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/transformers_animated_online_games.pdfIn PDF document text
    • http://fepezafo.rf.gd/late_payment_terms_and_conditions_template.pdfIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/85358388108.pdfIn PDF document text
    • http://pamubaj.epizy.com/17331947589.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_off0000e2a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2A1 5248 bytes
SHA-256: 603bee6116b161fe7f862768f49e9090b16cca0ec5593ed912f66d35af631c09
font_01_sfnt_off0000f483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF483 10036 bytes
SHA-256: ef6169161d2086a531a2e1abca337aa75b031f3c76a2aa7a2a8895cc73a9dd09

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