Malicious PDF — malware analysis report

Static analysis result for SHA-256 7db61dfa3aa42b30…

MALICIOUS

PDF

73.0 KB Created: 2021-03-11 12:16:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 6790a0c619bf55d519ac78b1e73af86d SHA-1: 6a35cb507138e3c8196779f63409a7f10fbf9d8e SHA-256: 7db61dfa3aa42b3081c6e71cba28ff0687e6e4e7fdab13a99998f3211a6d6c40
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'https://zajinet.ru/wix?keyword=ticket+to+read+reviews', which is likely a lure to a phishing site. The document body, though heavily obfuscated, contains text fragments related to 'Ticket to read reviews' and authoring application details, suggesting a social engineering pretext. No scripts were extracted, but the presence of external URIs and the overall detection profile indicate a phishing or malware distribution attempt.

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://zajinet.ru/wix?keyword=ticket+to+read+reviews PDF link annotation
    • http://salopkisa.website/character_count_in_excel_sheetq44au.pdfIn PDF document text
    • http://national-verifyteam.com/ernest_hemingway_indian_campzrcyf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403557/normal_603869d3271e8.pdfIn PDF document text
    • http://busibear.com/65158236753q4ub6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449618/normal_5fcd098d79241.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459641/normal_5fdd1dd29148a.pdfIn PDF document text
    • http://totalcreditcheck.info/32571432859p7ro0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378390/normal_5febb5b9ad321.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411489/normal_600d474964531.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401714/normal_6049a5c1bed4c.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/suxugipipolazog/what_does_retrieval_mean_in_psychology.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/free_guatemala_travel_guides.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/amar_akbar_anthony_video_song_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/tojazudibumogab/kugawagezafolenavuk.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/authentication_problem_android_wifi_sony_xperia.pdfIn PDF document text
    • https://s3.amazonaws.com/rufonali/map_of_us_states_and_capitals_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/fegazexubo.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/ram_dass_becoming_nobody_review.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/broken_web_series_title_song.pdfIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/jujutix.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_off0000e1a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A4 5068 bytes
SHA-256: 6943dc4477dd826f299578059aec14b5a030ff561dfaffbbfbd91f32d46797cd
font_01_sfnt_off0000f30a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF30A 10700 bytes
SHA-256: 1d79d67195cf40f6f898618123f45678dcb16b9c78a667195dd3904b2adcc626

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