Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0dd943677125ded…

MALICIOUS

PDF

97.8 KB Created: 2021-03-03 21:45:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 1d9a859fedb5172202fab9eb61790a10 SHA-1: 5eeab3fd41d0a05d7d948ed76184d2750c35c427 SHA-256: e0dd943677125ded83a1a3a84d0b66b9bc3bef1c29b33ca4f0a55d322eb37638
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, disguised with a seemingly benign lure related to Tai Chi workouts. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were extracted, the embedded URL is the primary indicator of a phishing or redirection attack, likely leading to further malware delivery.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://dafemum.ru/strik?utm_term=tai+chi+workout+dvd In PDF document text
    • https://cdn.sqhk.co/zadorari/uYbxjhw/beep_button_free.pdfIn PDF document text
    • http://dupomixu.iblogger.org/franchise_tax_report_due_date.pdfIn PDF document text
    • https://cdn.sqhk.co/tusufawenu/he2ji8y/26811776761.pdfIn PDF document text
    • https://cdn.sqhk.co/xubewarow/WnhcC4x/ecology_ka_meaning_in_urdu.pdfIn PDF document text
    • http://betijeduw.getenjoyment.net/what_was_the_radical_republicans_strategy_for_reforming_the_south.pdfIn PDF document text
    • http://majidadap.22web.org/12728328612.pdfIn PDF document text
    • https://cdn.sqhk.co/mivuxakadu/0LWjb2l/65875547377.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/gurudukozexifefosetom.pdfIn PDF document text
    • http://zuvakaxosamota.22web.org/ak_47_ringtone_song.pdfIn PDF document text
    • http://jibinaxinolano.iblogger.org/zorirogajog.pdfIn PDF document text
    • http://fakexexu.sportsontheweb.net/corona_kerosene_heater_wick_22-dk.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/galinikagopit/73498156950.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/pigasukasaranu.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/jojonarumagofunegotiku.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/rotoworld_nba_draft_guide_reddit.pdfIn PDF document text
    • https://s3.amazonaws.com/legesiliv/gotaboxot.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/66971157900.pdfIn PDF document text
    • http://danijikuguwidak.rf.gd/zuvikobuwe.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/67160453204.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/phonetic_alphabet_english_pronunciation.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_off00014352.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14352 4984 bytes
SHA-256: 06c418018a364bef00fc85f7f1f2007bece1a22c80ebca4fd66a0bf8bf586bcf
font_01_sfnt_off00015453.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15453 11208 bytes
SHA-256: 65b149abf277fff3b20463acefa32312f4a2b813fdd9dc2378e4ff207e0162ef

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