Malicious PDF — malware analysis report

Static analysis result for SHA-256 707fb726905ca04f…

MALICIOUS

PDF

79.2 KB Created: 2021-03-25 11:55:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 152b7f231a95d35df728b496e06395e6 SHA-1: 5231166b3b27959d7c62375983ed58d0cb460c36 SHA-256: 707fb726905ca04f30e7884d7c7eca7ff571f10ef7abd24e69b2f927f53a6334
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/strik?utm_term=how+to+set+armitron+wr165ft+watch PDF link annotation
    • https://cdn.sqhk.co/xubewarow/dggYBgj/vaxisur.pdfIn PDF document text
    • https://cdn.sqhk.co/vabedesi/izgw45K/human_ecology_meaning_in_telugu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375073/normal_604aa39421e0e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420604/normal_60106302c99ed.pdfIn PDF document text
    • http://joteruzawareba.iblogger.org/poduvotorizanajefe.pdfIn PDF document text
    • http://jagodadexujuza.iblogger.org/akreditasi_puskesmas_bab_3.pdfIn PDF document text
    • http://najapizarut.22web.org/25508497730.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469837/normal_6002d772ccab0.pdfIn PDF document text
    • http://bititoxoguxal.22web.org/html_invoice_template_php.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/bikewapewupoxewisesonex.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/oh_butterfly_song_lyrics_in_tamil.pdfIn PDF document text
    • http://sanebofav.epizy.com/86949216142.pdfIn PDF document text
    • http://laxolivavaru.epizy.com/easy_recipe_for_lasagna_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/happy_new_year_kannada_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vebogotexaf/4878052385.pdfIn PDF document text
    • http://vimitafukufes.rf.gd/39905009945.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/chegg_india_expert_test_answers.pdfIn PDF document text
    • http://xifogufog.epizy.com/801486013.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/robujexag.pdfIn PDF document text
    • https://s3.amazonaws.com/poguvelefa/65958199339.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_off0000f7e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E5 5472 bytes
SHA-256: 5689ac0f47df37226a2010bb14ceaa5026f6e79f2acc77cd552c195467b03fb8
font_01_sfnt_off00010a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A77 10700 bytes
SHA-256: ca9632b070b8df57fde92d456bbb98b9b7a3ae6c3f6a82a3e3cc006e23e7feda