Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e2056dd7b83cd7b…

MALICIOUS

PDF

74.7 KB Created: 2021-03-29 16:35:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 265aa4eca2d7f714b308d57785ac5890 SHA-1: 95af9f7c2f256b293b80e59f1b4857c3025fab21 SHA-256: 1e2056dd7b83cd7ba69977a0df1e3031286164883513435d066ef6c3909fbda7
96 Risk Score

Malware Insights

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

The PDF contains a large number of external links, characteristic of a link farm or SEO poisoning attack, designed to direct users to potentially malicious websites. The ML classifier strongly indicated maliciousness, and the presence of numerous external URIs supports this assessment. While no scripts were directly extracted, the PDF structure and heuristic firings suggest it's designed to facilitate the download or redirection to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://druttle.ru/strik?utm_term=leon+portilla+broken+spears+pdf PDF link annotation
    • https://fovozipi.weebly.com/uploads/1/3/0/7/130775458/1fadd8d728e660.pdfIn PDF document text
    • https://ruwatija.weebly.com/uploads/1/3/4/8/134846771/9594854.pdfIn PDF document text
    • http://easterthjg.com/855047377513xyae.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/kemTja0/zotezusavazinagatareme.pdfIn PDF document text
    • http://ouily.xyz/hampton_bay_ceiling_fan_light_bulbs8lo7f.pdfIn PDF document text
    • https://cdn.sqhk.co/posukomokufi/gghgehg/balancing_equations_worksheet_answers_1-_20.pdfIn PDF document text
    • https://mokoxobijukox.weebly.com/uploads/1/3/4/3/134321678/1741eedb673.pdfIn PDF document text
    • http://itayoga.space/conair_trimmer_not_workinge84hx.pdfIn PDF document text
    • http://famixadip.22web.org/additional_mathematics_1_notes_download.pdfIn PDF document text
    • https://zuseluxutiv.weebly.com/uploads/1/3/4/6/134686448/dedokikajuwupewimu.pdfIn PDF document text
    • http://ita-bio.space/herbceas_o_que6rtlq.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/Pggijie/this_might_be_the_best_iq_test_ever.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://desasivitusuzux.epizy.com/nadujinupelivar.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/i_love_you_bengali_movie_filmywap.pdfIn PDF document text
    • https://s3.amazonaws.com/nasitevu/wayne_dalton_torquemaster_plus_conversion_kit.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/alan_walker_faded_piano_music_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/57704333769.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/dyson_dc25_exploded_parts_diagram.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_off0000e35a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE35A 5180 bytes
SHA-256: 0e6f789045e6ba88632dc988e1dbaf6483e4be79c8bf837654450a478ff91505
font_01_sfnt_off0000f505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF505 13320 bytes
SHA-256: 40e418c0373ea1d1ef33e582cd77e8860145a873f89585d840aeab9a791c79fe

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