Malicious PDF — malware analysis report

Static analysis result for SHA-256 21ab698bfa3299fc…

MALICIOUS

PDF

73.0 KB Created: 2021-02-22 04:47:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eafdfcd0bfcecd038caf58188633629f SHA-1: 376f957f0d72759ab9b9784b5e84f3c77cfeb4cd SHA-256: 21ab698bfa3299fc3b1d05558432c98c410817b04c5418feedf6ba6c223c7333
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The document contains an embedded URL pointing to 'seumenha.ru', which is likely part of a phishing or malware distribution scheme. The presence of PDF-specific heuristics further supports its malicious nature.

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://seumenha.ru/wix?keyword=letters+to+numbers+code+converter
    • https://cdn-cms.f-static.net/uploads/4427509/normal_600cc6462607f.pdf
    • https://cdn-cms.f-static.net/uploads/4487194/normal_601191d315c63.pdf
    • https://cdn.sqhk.co/kewawukufiju/iehKUjb/31217017687.pdf
    • https://cdn-cms.f-static.net/uploads/4370269/normal_601fedba85f0e.pdf
    • http://nakanilo.club/film_minion_2015_sub_indonesia94x2f.pdf
    • https://cdn.sqhk.co/vekokoze/5o4lQjg/game_dev_tycoon_10_10_combinations_2020.pdf
    • https://cdn-cms.f-static.net/uploads/4476148/normal_600f81e348e82.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zowejunef/irregular_past_tense_verb_worksheet.pdf
    • https://s3.amazonaws.com/palevijuj/free_printable_gratitude_journal_template.pdf
    • https://s3.amazonaws.com/gewisetug/99292969801.pdf
    • https://s3.amazonaws.com/goviwigax/47891899041.pdf
    • https://s3.amazonaws.com/gazijewevan/bsc4success_reasoning_puzzle.pdf
    • https://s3.amazonaws.com/legipalofi/bise_lahore_2019_2nd_year_date_sheet.pdf
    • https://s3.amazonaws.com/sajatesawodiji/6th_2nd_term_english_guide.pdf
    • https://s3.amazonaws.com/zarelusipofox/view_archived_chats_on_whatsapp_android.pdf
    • https://s3.amazonaws.com/taguxif/java_8_jre_offline.pdf
    • https://s3.amazonaws.com/vobuturinivi/wuxaxuluwe.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e12a.bin
4e07b6fa9d7eafe1ebdcf42633724c6db2eae52bfe52d8fc778c74add7dca8e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE12A 4984 bytes
font_01_sfnt_off0000f20a.bin
284dba23c2958a0e782bc310dbf407e975925fb290458bfb8461d74d5d2e97c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF20A 10864 bytes

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