Malicious PDF — malware analysis report

Static analysis result for SHA-256 061bb49892fc5405…

MALICIOUS

PDF

120.1 KB Created: 2021-03-07 21:44:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2f1d1948cb1e25b5122d41aeb4884686 SHA-1: b50e6aa85be7679386cc86526a3405f7bb2c26ee SHA-256: 061bb49892fc54055d5972ca32de46419e4c56fa7dbb3763bbb0bc193103841d
96 Risk Score

Malware Insights

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

The file is a PDF document that contains embedded URLs, one of which is presented as a search result for a user manual. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of embedded URLs suggests an attempt to redirect the user to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dugedepap.ru/wix?keyword=cub+cadet+rzt+s+42+owner%2527s+manual PDF link annotation
    • http://mattelipsticks.site/39965826941t82cc.pdfIn PDF document text
    • http://diporesorojina.scienceontheweb.net/grounded_theory_definition_glaser_and_strauss.pdfIn PDF document text
    • http://momentshop.space/11332756834uj76o.pdfIn PDF document text
    • http://dadevizevarek.scienceontheweb.net/8535359081.pdfIn PDF document text
    • http://iciapp.xyz/atollic_truestudio_stm32_tutorial07msq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/xidazeze/68115896103.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/4372756536.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/14739714036.pdfIn PDF document text
    • http://wefuzage.epizy.com/dha_bahawalpur_balloting_2019_results.pdfIn PDF document text
    • http://takivozakafu.rf.gd/xaguvilaseze.pdfIn PDF document text
    • http://durevitulo.rf.gd/python_iterate_nested_dictionary_key_value.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/diablo_3_crack.pdfIn PDF document text
    • http://suwojubomitela.epizy.com/nuluxananifu.pdfIn PDF document text
    • http://tefetuzuzip.myartsonline.com/ski_doo_service_manual_2016.pdfIn PDF document text
    • http://gakilasefit.myartsonline.com/series_of_unfortunate_events_ending_explained_book.pdfIn PDF document text
    • http://keregimuw.onlinewebshop.net/wubepemo.pdfIn PDF document text
    • http://vakogez.myartsonline.com/sedazipikekevi.pdfIn PDF document text
    • http://bafuwujix.atwebpages.com/catching_fire_full_movie_online_free_123.pdfIn PDF document text
    • http://gejaxogepokotow.rf.gd/35772158765.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000183ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x183AC 5476 bytes
SHA-256: b534ee2c15fb47020fe9a2f4ae8d0866baf00ef181b84559731d518bcb91b597
font_01_sfnt_off00019655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19655 14792 bytes
SHA-256: 7d85ad45c07f34f85f916420c4f359979de1b7e8cce53d68a9d6d1fef427e591
font_02_sfnt_off0001c4b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C4B9 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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