Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebeb2334bd7eb61c…

MALICIOUS

PDF

75.8 KB Created: 2021-04-24 02:03:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 8e8d211eafe8ef50492f2fcf153fb18c SHA-1: 09f4bbc81cc1ca0e61eeb9f0003f04455204f5ea SHA-256: ebeb2334bd7eb61cfce02c60759f0992c2a1f9df50925bacb6c5eedf4890d5eb
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are dynamically generated and point to potentially malicious domains, indicating a link farm or phishing operation. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and numerous external URIs suggest it is designed to redirect users to malicious content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://soxebez.ru/strik?utm_term=betrayal+at+house+on+the+hill+what+happens+when+you+die PDF link annotation
    • http://sdfsdfsdf.shaketorch.com/chennai_corporation_death_certificate_application_form.pdfIn PDF document text
    • https://jetisinodab.weebly.com/uploads/1/3/5/3/135335938/tifogazele_wofuxili_weradevat.pdfIn PDF document text
    • https://turarizamagux.weebly.com/uploads/1/3/1/4/131453837/nodadowukojutatafaja.pdfIn PDF document text
    • http://bekotuselol.22web.org/sovupuruvopazepo.pdfIn PDF document text
    • https://mekapejodefab.weebly.com/uploads/1/3/4/7/134740006/1a6df74c.pdfIn PDF document text
    • http://morosoxumexax.iblogger.org/everything_happens_for_a_reason_book_kate_bowler.pdfIn PDF document text
    • https://zegikawa.weebly.com/uploads/1/3/4/6/134640481/67d02e0ec.pdfIn PDF document text
    • http://xafukuxovikovu.22web.org/45113122256.pdfIn PDF document text
    • https://likufugusatu.weebly.com/uploads/1/3/1/4/131406708/jifogoxim_mawijerurupen.pdfIn PDF document text
    • http://tikewifijub.22web.org/no_excuses_brian_tracy.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xisapedugifado.epizy.com/another_vs_other_exercises.pdfIn PDF document text
    • https://dc383e6d-b7a3-4e67-a88a-227fa542b6c3.filesusr.com/ugd/72b0e7_fd266524051f420eb5b49c0f8929d899.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pujirageg/jegulutufiwikirazomonu.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/anggota_autobots_transformers_4.pdfIn PDF document text
    • http://pitudug.epizy.com/lopixeferuw.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/skymovies_in_new_south_movies.pdfIn PDF document text
    • https://7f06b679-e14d-4525-8955-d56a7cf6f710.filesusr.com/ugd/79e5df_cd6a072792e349ad8d52769c77078c53.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xefejevife/ecg_rhythm_cheat_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/botukuj.pdfIn PDF document text
    • https://a5fc3680-5c08-4cda-bd6c-abaa3bdf25bc.filesusr.com/ugd/ea5d7b_315bc183fe5545b2ae7dfaa2f826fd77.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/meludav/xivefavof.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/free_akeelah_and_the_bee_720p.pdfIn PDF document text
    • https://9c12218e-e157-4070-b33f-4467b3cb42bb.filesusr.com/ugd/0c60a0_3e92d6caddf2458b9153f342abc3c52e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kaxukok/chamatkar_film_song_free.pdfIn PDF document text
    • http://mumeriladokovot.epizy.com/85549434614.pdfIn PDF document text
    • http://tixepedom.epizy.com/8086_assembler_tutorial_for_beginners_part_2.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_off0000ea84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA84 5288 bytes
SHA-256: 0953abd391ac8dce473ca867202127ce6e8afe9d016cdc49ef7d8f7318359806
font_01_sfnt_off0000fc8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC8F 10760 bytes
SHA-256: 84e9f001a6cbe7d2c4c85dd656b892b361c03294df2ba05fc378079ffb69256c

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