Malicious PDF — malware analysis report

Static analysis result for SHA-256 70174c9a2443b394…

MALICIOUS

PDF

74.9 KB Created: 2021-02-17 12:22:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: d76f11339ab94fc20261a1c4f551584f SHA-1: ebdc3678857b8343560bf6654397007d1f944fac SHA-256: 70174c9a2443b394a0b1f5067076078d758a54c1f7d8551505dd057f47a66f12
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit users through a deceptive lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jacksth.ru/strik?utm_term=how+to+write+a+novel+examples PDF link annotation
    • https://kudoxere.weebly.com/uploads/1/3/4/5/134591480/rinuzokodegujak-toxadutuga.pdfIn PDF document text
    • https://vorajazelilax.weebly.com/uploads/1/3/1/4/131407498/bevilotuwisedixemami.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393908/normal_600c618021819.pdfIn PDF document text
    • https://xevibobi.weebly.com/uploads/1/3/4/6/134683071/bebipelome.pdfIn PDF document text
    • https://koralazuvumo.weebly.com/uploads/1/3/1/8/131871516/velusiwisi.pdfIn PDF document text
    • https://gawozigojuvapa.weebly.com/uploads/1/3/4/8/134896601/9685270.pdfIn PDF document text
    • https://nixuxani.weebly.com/uploads/1/3/4/4/134433038/1776475.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501229/normal_60046a9651bd2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366969/normal_601ba5e8bfea7.pdfIn PDF document text
    • http://kozevoviwepok.iblogger.org/vifovevatenidelobunujod.pdfIn PDF document text
    • https://vifazadaza.weebly.com/uploads/1/3/4/8/134883600/xaxis.pdfIn PDF document text
    • http://bezigex.iblogger.org/megeza.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404103/normal_5ff49680bda5f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lujarozukivexoz.epizy.com/apache_tomcat_7._0._59_error_report.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/motivazioni_sentenza_cassazione_bossetti.pdfIn PDF document text
    • https://s3.amazonaws.com/zagapaxa/cameroun_information_du_jour.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/chinese_keyboard_windows_8.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/62058950466.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/celebrations_around_the_world_worksheet_pack.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/puzivuponifusosel.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/john_bunyan_pilgrim_s_progress.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_off0000e878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE878 5144 bytes
SHA-256: 68e923b5be51cb681506b1f280faa5d6151c5e7bbc2ff7e3f2917a3622d7f526
font_01_sfnt_off0000f9f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9F5 10556 bytes
SHA-256: 7a568087115f46a73fb47bc8d7e6241c7ebee1543703d37753368fa57dc700bb

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