Malicious PDF — malware analysis report

Static analysis result for SHA-256 79a4c26d33cdd88b…

MALICIOUS

PDF

77.6 KB Created: 2021-04-03 05:48:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 702419ac78e9f38bbdd2beddfd82b75d SHA-1: b3048054d9ce1f9667541d26290027f714b134f5 SHA-256: 79a4c26d33cdd88b5a01d9cc547f17b9f45986df5da9224aa29123a0ae47bb9f
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9960

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://soxebez.ru/123?utm_term=bluetooth+software+64-+bit PDF link annotation
    • https://cdn.sqhk.co/tixunadegu/jjjaifp/halloween_charades_ideas_for_adults.pdfIn PDF document text
    • http://dabiboniner.22web.org/8th_grade_social_studies_reading_comprehension_worksheets.pdfIn PDF document text
    • http://tenopokas.22web.org/84663383247.pdfIn PDF document text
    • https://cdn.sqhk.co/kosenopelid/eHVahcn/goseziwezipa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409413/normal_60115176ba82f.pdfIn PDF document text
    • https://cdn.sqhk.co/bebubofawa/lTXhaIP/template_for_personal_budget_planning.pdfIn PDF document text
    • https://cdn.sqhk.co/mewobonovagi/iiVgdFt/flu_infected_2018.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393489/normal_60054c6d39187.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410191/normal_6001da0b47a56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404112/normal_6063111ddd106.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/pululusodogi/android_tv_remote_stopped_working.pdfIn PDF document text
    • https://s3.amazonaws.com/lazolu/6250874868.pdfIn PDF document text
    • http://faxunarin.epizy.com/letter_h_worksheets_for_kindergarten.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/how_to_become_a_certified_spanish_translator_in_texas.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/82608919422.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/what_is_the_average_calorie_intake_in_a_day.pdfIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/49692150333.pdfIn PDF document text
    • http://kubumoran.rf.gd/cubase_5_tutorial_video_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/3275914028.pdfIn PDF document text
    • https://s3.amazonaws.com/wogikokuzotaxa/77965906740.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/49628999751.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/domajaditakuvavabuli.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/entomology_study_material.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/dark_blue_formal_gowns.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/strange_pet_names.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/acrobat_reader_8._1._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_off0000ef2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF2B 5408 bytes
SHA-256: 662493a915f288dda639d6246417053276c4938a52ecf8610408d09b7ad73035
font_01_sfnt_off000101aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101AA 12044 bytes
SHA-256: 51435634c39ba440d6526c54d5030755b3aadd40bd182f58fe37de5f9044dde8

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