Malicious PDF — malware analysis report

Static analysis result for SHA-256 446b73edf4358dce…

MALICIOUS

PDF

82.0 KB Created: 2021-03-27 13:52:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: fd71dc29a1219297f82b1b75588405f4 SHA-1: ff9bd5b64e7059c4ed21f54b25eb14a9dcd44753 SHA-256: 446b73edf4358dcebc057e6b66eeaf6a3569cd1147c00605335398e377f3e232
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://baarspo.ru/123?utm_term=mandatory+reporting+laws+victoria PDF link annotation
    • http://wenenejenataf.iblogger.org/79202446587.pdfIn PDF document text
    • http://gagapazu.scienceontheweb.net/pcrf_telecom.pdfIn PDF document text
    • http://tujijamutibe.sportsontheweb.net/beauty_and_the_beast_real_story.pdfIn PDF document text
    • http://jokebixa.22web.org/50011525600.pdfIn PDF document text
    • http://geparup.scienceontheweb.net/41213473530.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vutupaxuvidebif.rf.gd/dapezelovibibuwuv.pdfIn PDF document text
    • http://tinulelor.rf.gd/56948797847.pdfIn PDF document text
    • https://s3.amazonaws.com/tarajix/price_celestron_nexstar_8se.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/20771416941.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/377221cb-dc8c-4d91-af3d-e09135275559/songs_of_praise_top_10_christmas_carols_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/75597636756.pdfIn PDF document text
    • http://romepasuv.myartsonline.com/69436497191.pdfIn PDF document text
    • https://s3.amazonaws.com/ladojenefe/google_spanish_english_translator.pdfIn PDF document text
    • http://xaposekesudonod.epizy.com/basha_tamil_movie_songs_free_tamilwire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80ac3b21-db1d-40b8-a357-d64a99fdd71a/kikesuwijemaxal.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/56938334629.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc9d021c-b099-4cdc-a846-f0279192e996/59425255305.pdfIn PDF document text
    • https://s3.amazonaws.com/vavale/zozizajuvezubu.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/calendario_mundial_rusia_2018_descargar.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/toga_bed_sheet_female.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_off00010316.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10316 5500 bytes
SHA-256: 743cc9379f447821a4482b21cbd7b9f6ae3ff5372a699761832dca1808e92b51
font_01_sfnt_off00011604.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11604 10828 bytes
SHA-256: 6d172e6db33eeb2852f97899473a1129a15de3c1a0ecb743448e9daca2de6acb

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