Malicious PDF — malware analysis report

Static analysis result for SHA-256 cddb5068b89949e7…

MALICIOUS

PDF

80.3 KB Created: 2021-03-01 10:35:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: d3cb0208192d4972d7cd90d98b4944a5 SHA-1: af82fcf4db81ec9fdf7ddabf38cbe6ce90b30128 SHA-256: cddb5068b89949e7da2272890eaa93b4f5a5b3fbb04a2cc642e167343d4c6f49
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site for phishing or malware delivery. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create malicious PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/strik?utm_term=how+much+is+my+browning+auto+5+worth PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4365621/normal_5fe22fb5ed000.pdfIn PDF document text
    • http://webmastervlad.ru/36473778451ignmn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490263/normal_5fdfdfef0daa8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420034/normal_5ffd2b68acc0f.pdfIn PDF document text
    • https://cdn.sqhk.co/dijogiper/hThjLjj/96159129093.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421623/normal_5fedfae23c9c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391599/normal_602751d560f08.pdfIn PDF document text
    • https://cdn.sqhk.co/fofateze/afgdXSD/epic_games_launcher_customer_support.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449768/normal_6014704f82d4b.pdfIn PDF document text
    • https://cdn.sqhk.co/zurefaxenov/Y6wD4GW/frantics_game_ps4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454977/normal_6033b79f35bdf.pdfIn PDF document text
    • https://cdn.sqhk.co/letabuner/Liegji0/funny_riddles_quiz_questions.pdfIn PDF document text
    • https://cdn.sqhk.co/leburogutu/ihdjgq8/juventus_jersey_2018_away.pdfIn PDF document text
    • http://policyhelpcenter.com/jakonapey5u1j.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369316/normal_6025f63fc0890.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/geraromu/bollywood_old_movies_list.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/20987502004.pdfIn PDF document text
    • https://s3.amazonaws.com/wutisigila/guess_the_bollywood_movie_name_by_image_with_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/mekonulegipero/42355943742.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_off0000fae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE5 5600 bytes
SHA-256: cfa1197bcc6661f48a3e84027e75b39a0133c38cf0dd3412c04f0e98a3779853
font_01_sfnt_off00010de5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DE5 11296 bytes
SHA-256: f765d5a33c55a0e86de20b83b938edf297cec688d1bfe4d5f99f209b1453eaa2

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