Malicious PDF — malware analysis report

Static analysis result for SHA-256 917445bebec94db7…

MALICIOUS

PDF

212.0 KB Created: 2021-02-20 20:01:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 8702376ab05e92744dc71bf624d13602 SHA-1: 4e26327536ce8e2f31e347e0b9f20ad12df3d10b SHA-256: 917445bebec94db7f3f6984cc5ad0450a15e4ceb8ae55d8603ff8338762c9354
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that redirects to a URL associated with phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wb?keyword=dead%20sea%20scrolls%20hebrew%20text PDF link annotation
    • https://nojinogexosop.weebly.com/uploads/1/3/4/6/134695112/1747766.pdfIn PDF document text
    • https://cdn.sqhk.co/bitubebo/mR2hahc/steampunk_clothing_ideas.pdfIn PDF document text
    • https://cdn.sqhk.co/xiladuxe/heHejiB/14074300152.pdfIn PDF document text
    • https://ruvawuwejijexut.weebly.com/uploads/1/3/0/8/130814193/763742.pdfIn PDF document text
    • https://pufopobumosuv.weebly.com/uploads/1/3/0/7/130776602/9eaccfb846.pdfIn PDF document text
    • http://arendagg.xyz/plantronics_voyager_pro_plus_bluetooth_headsetgz9q3.pdfIn PDF document text
    • http://goxosegeratis.22web.org/hiv_and_aids_information.pdfIn PDF document text
    • http://latutuvifem.22web.org/the_cask_of_amontillado_characters_and_their_roles.pdfIn PDF document text
    • https://cdn.sqhk.co/gixenerusivu/c3Vidxa/jutedakujofexegenugene.pdfIn PDF document text
    • http://biolinkus.me/695065975qzemi.pdfIn PDF document text
    • https://cdn.sqhk.co/puxedimuwo/7jhhcLS/hello_bendy_gameplay.pdfIn PDF document text
    • http://marketes.pro/merojiwazepodugakevenizdcx.pdfIn PDF document text
    • https://cdn.sqhk.co/vimewiki/aijidge/virtual_regatta_inshore_cheats.pdfIn PDF document text
    • http://lofitner.buzz/download_ps4_save_game_filesd6qs6.pdfIn PDF document text
    • http://www.deadseascrolls.org.il/homeIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://titasukutisun.epizy.com/tevuzepotusepugewasavifu.pdfIn PDF document text
    • http://zedaziwubisod.rf.gd/aww_full_form_and_meaning.pdfIn PDF document text
    • http://moliwofasekimu.epizy.com/daroviri.pdfIn PDF document text
    • http://madanekobovuge.epizy.com/sasural_genda_phool_song_free_pagalworld.pdfIn PDF document text
    • http://kenuzuwemonuda.epizy.com/77063822303.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002ec2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC2F 5328 bytes
SHA-256: 1aeb5e7e3ee2235b66444a8a0e506104ba24b4a59f643c3708d2a8c65dd60e0f
font_01_sfnt_off0002fe5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE5D 15576 bytes
SHA-256: 6965d17a937d555c2e30904c9a054c3666120bf24efa0ea5c91a71b3b47c9a35
font_02_sfnt_off00032d43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32D43 16060 bytes
SHA-256: e53b2ef911badf5c0b0a90ecab562a5ee0ef0613936758fa47ba08ad4859bebf

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