Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd6c8ebae5b599c7…

MALICIOUS

PDF

89.8 KB Created: 2021-02-03 11:24:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: d4c78712d210fca896465f68e1beed6e SHA-1: 9284a1fd41c5ed01f54d84743556103211fce4fc SHA-256: fd6c8ebae5b599c7547fdac2dde4ef723a7ee1076be183d413630aed2548adc8
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, 'jottigo.ru', which is likely used to host a malicious payload or phishing page. The document body, though heavily obfuscated, contains metadata related to its creation, but no direct textual lure is discernible.

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://jottigo.ru/123?utm_term=safariland+drop+leg+holster PDF link annotation
    • http://mainsale.pro/best_hashtags_for_instagram_followers_and_likesnxsax.pdfIn PDF document text
    • http://donbetosstreettacos.com/joyeux_noel_splat_ce1hyk6w.pdfIn PDF document text
    • http://originalhallyu.com/94830230827vz63a.pdfIn PDF document text
    • http://50offstore.info/40612546676u6drh.pdfIn PDF document text
    • http://poverkavoda.website/598053823655xcsn.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/wusone/wudirano.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/mifoditapiwegit.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/como_encontrar_mi_android_apagado.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/67189174722.pdfIn PDF document text
    • https://s3.amazonaws.com/bifadiwuwileji/32929437945.pdfIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/principais_abordagens_da_administrao.pdfIn PDF document text
    • https://s3.amazonaws.com/niwotipugonuvoz/38306371789.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/jobodafepu.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/3d_world_map_online.pdfIn PDF document text
    • https://s3.amazonaws.com/zedudo/language_teaching_methods_and_approaches.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/81578842840.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_off00012106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12106 5404 bytes
SHA-256: a799d6504e09d8f25800606386b23cccfe4f2ca7552f3bd38fd038493f7654f9
font_01_sfnt_off00013361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13361 11596 bytes
SHA-256: 15700735c16b0082786cac95dc3027eb53b00641f2cfa69d522f64f747bddb2f

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