Malicious PDF — malware analysis report

Static analysis result for SHA-256 0da0ddaf822bb30d…

MALICIOUS

PDF

77.9 KB Created: 2021-06-04 00:13:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fa55e307991b4f9b7caf5c873a9e5913 SHA-1: 9afcad02dafe1e558527b9312538866caf19d9e7 SHA-256: 0da0ddaf822bb30d62b74aa5df785da7b493569066f7f0058c5f7d48c4599628
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that points to a malicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. The presence of an external URI and the overall detection suggest a phishing attempt designed to redirect users to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://resalured.ru/123?utm_term=adios+muchachos+tango+sheet+music
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://pagorevet.pbworks.com/w/file/fetch/144465909/business_model_innovation_coffee_triumphs_for_nespresso.pdf
    • http://fixulirulafa.pbworks.com/w/file/fetch/144495753/89305736060.pdf
    • http://jujirafamena.pbworks.com/w/file/fetch/144465480/taditixolebib.pdf
    • https://uploads.strikinglycdn.com/files/f14cf163-2b33-43cc-95bc-4e41e167d95d/dudulezagipumutifus.pdf
    • https://uploads.strikinglycdn.com/files/7dd10768-fab7-4504-977c-09410cd1c3f9/vodizivozojitolune.pdf
    • http://xalanupuzewo.pbworks.com/f/fesujubanirek.pdf
    • http://dejimebez.pbworks.com/f/98761079154.pdf
    • https://uploads.strikinglycdn.com/files/1e6e98a0-dd54-413b-9188-796532d0fac7/tonawupuxovaxowepisum.pdf
    • http://natizasex.pbworks.com/f/simon_vs_the_homosapien_agenda_audiobook_free_download.pdf
    • https://uploads.strikinglycdn.com/files/21c623ab-0f53-4ebc-abe8-cef531e4aa1f/dixomubotu.pdf
    • http://fokopaviwu.pbworks.com/w/file/fetch/144467319/tinkerbell_pixie_hollow_games_full_movie_in_hindi_download.pdf
    • http://kokoxudalux.pbworks.com/w/file/fetch/144427449/how_to_make_gelatin_sheets_from_powder.pdf
    • http://garewewaziwu.pbworks.com/w/file/fetch/144577857/panorigapezotedifedekune.pdf
    • https://uploads.strikinglycdn.com/files/5d6078ef-751a-407d-bb88-35eee4d75970/gareresarivuwa.pdf
    • https://uploads.strikinglycdn.com/files/9d9ccc19-f612-4468-b217-d300452a071b/stairway_to_heaven_song_backwards_lyrics.pdf
    • http://kusarolox.pbworks.com/f/33379522963.pdf
    • http://jitilabajeko.pbworks.com/w/file/fetch/144484665/90704063300.pdf
    • https://uploads.strikinglycdn.com/files/ab8ccc0b-c2de-4a23-9c64-7e5767942e03/how_to_learn_python_as_a_beginner.pdf
    • http://pilujibos.pbworks.com/f/22253740375.pdf
    • http://gufabewa.pbworks.com/w/file/fetch/144577767/27526443118.pdf
    • http://zuwofig.pbworks.com/w/file/fetch/144535623/vuvifalutujasotu.pdf
    • http://mujefapufefi.pbworks.com/w/file/fetch/144516399/gametes_formed_from_aabb.pdf
    • https://uploads.strikinglycdn.com/files/0200b35e-b1d5-416d-876d-09912f017d66/how_do_i_reset_my_dish_hopper.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_off0000e57d.bin
5460b8b579bd7f39961ad778376e705254db27e87b8abc8b766e60878102df5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE57D 5096 bytes
font_01_sfnt_off0000f6ab.bin
b28497fbe5d8b7f41d10aea297e9bae6a510bb45c1a4f46bbbc89e0c31a02beb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF6AB 11172 bytes
font_02_sfnt_off00011b90.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B90 4324 bytes

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