Malicious PDF — malware analysis report

Static analysis result for SHA-256 98459667e3ad8151…

MALICIOUS

PDF

79.5 KB Created: 2021-04-01 09:05:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 5838ee2b7457335233cff22a431dba04 SHA-1: 198bc16cb8f52143682ad750ee17a507effa9ae1 SHA-256: 98459667e3ad8151161ae50bb6ed2bceffee5975775d519817bdbbadb860087e
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate maliciousness. The document body, though heavily obfuscated, contains text related to the embedded URL, suggesting a phishing or social engineering attempt to trick the user into visiting the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://bologen.ru/award?keyword=new+historicism+theory+of+literary+criticism+pdf PDF link annotation
    • https://cdn.sqhk.co/sawomunuj/jcbhjgj/81106953673.pdfIn PDF document text
    • https://cdn.sqhk.co/xadakede/egjNkge/munalopuselugumuzokidejos.pdfIn PDF document text
    • http://namsinc.info/how_to_replace_keurig_water_filterpd7e5.pdfIn PDF document text
    • https://cdn.sqhk.co/kerikone/ghgcAYN/jukuzafojawugifewofuzew.pdfIn PDF document text
    • http://tgesheff.xyz/twilight_2013_tamil_dubbed_movies_download_tamilrockers_2012hbc19.pdfIn PDF document text
    • https://cdn.sqhk.co/nebemina/gvMieki/kriss_vector_22lr_review.pdfIn PDF document text
    • http://rent-nout.site/pinball_museum_las_vegas_pricetazb8.pdfIn PDF document text
    • http://ig-about.net/is_there_a_new_wings_of_fire_book_coming_outuv42t.pdfIn PDF document text
    • https://cdn.sqhk.co/notenirikev/PTpgjfe/new_fortnite_cat_skins_coming_out.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8d2b5c6-e6aa-4141-963a-18f158666a00/movie_review_template_for_elementary_students.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa20e2bc-44e2-4810-9fb2-0f63c414b09e/petsafe_wireless_fence_collar_problems.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcef4bf4-387a-4ad8-9ca4-fadc0536f154/69171050512.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c66ed91-4457-4ad6-badc-a997f003389b/83061633217.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3f21971-3663-4e3b-b277-49e480f55b9d/netixegenozewukudulum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e24e9c5-6de6-45d1-bdff-bddf72959481/how_to_get_a_payday_loan_in_georgia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f32088c7-2860-49fc-93b3-1625a4332a4b/divozulapipunef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af88e1c6-4d6e-452c-ae32-414bca305bb3/44349605948.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34f21ef8-f5a0-4dd3-86bd-3df4a5743407/baby_goats_jumping.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1a8ed99-91e6-4a70-84af-fb158f5427ad/white_christmas_tree_ideas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc454ba0-4be7-4035-b5ea-9e56935e16cd/weighted_blanket_with_zip.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/residential_lease_agreement_template_philippines.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/is_the_hurt_feelings_report_real.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ba72b9f-7a47-466c-ae2a-32e47b10eba6/nejazerapetuviwumipewono.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8386979e-0e06-4161-b53e-1e619954a8ba/pusuf.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_off0000f8da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8DA 5560 bytes
SHA-256: 4cf0af618a51f54c8e26f13256165bba880e4eb8802ea2983a6ff911b433590a
font_01_sfnt_off00010bb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BB7 10752 bytes
SHA-256: f0e9ccddde31caa8cc347b075dbca84244b60a689888d3177345a0b425bd7f98

Open this report in the interactive analyzer, or submit your own file for analysis.