Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b69be138abfa8da…

MALICIOUS

PDF

309.0 KB Created: 2021-05-04 06:29:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 46c368ae3f2bbebcc5ec21dcd81247e6 SHA-1: d7f52755bba4e3ea708ff5eec9385372af009e8a SHA-256: 1b69be138abfa8da4e25c71833dfea4478f2fb2f3287d62140b106d016e0c36a
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9660

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://gimoguvi.ru/strik?utm_term=uk+employment+law+explained PDF link annotation
    • https://cdn.sqhk.co/kupejabel/ehcGegc/ancient_world_adventures_in_time_and_place.pdfIn PDF document text
    • http://dakajak.medianewsonline.com/wajolusekisiziwu.pdfIn PDF document text
    • http://vanebitedituki.22web.org/organic_chemistry_as_a_second_language.pdfIn PDF document text
    • https://bexokafosirur.weebly.com/uploads/1/3/2/6/132695536/3072485.pdfIn PDF document text
    • https://melekutiruj.weebly.com/uploads/1/3/2/7/132740408/7185927.pdfIn PDF document text
    • http://bidetoluji.getenjoyment.net/conair_steamer_gs95_not_working.pdfIn PDF document text
    • http://nawobutesoparut.iblogger.org/fipupodukefowabubebemisaf.pdfIn PDF document text
    • https://jobovivubip.weebly.com/uploads/1/3/5/3/135392816/7839760.pdfIn PDF document text
    • https://cdn.sqhk.co/wubunepan/9gdZahe/20466756268.pdfIn PDF document text
    • http://novijixonusasu.mywebcommunity.org/hcu_adalah.pdfIn PDF document text
    • http://kodavuviguwu.mypressonline.com/story_elements_worksheets_8th_grade.pdfIn PDF document text
    • https://telixezudaridif.weebly.com/uploads/1/3/0/7/130775339/gusupefafamo-xajepurud-kulivutumarifo.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
    • http://banudozege.epizy.com/como_transformar_fahrenheit_a_rankine.pdfIn PDF document text
    • https://8dfd47f4-e591-4377-92a3-bdbf91d41e5a.filesusr.com/ugd/a58b01_29143f5cdf0c4890b8f005dc056fae9c.pdf?index=trueIn PDF document text
    • https://dfdccaec-9019-42eb-ab8c-14eed22d5f88.filesusr.com/ugd/2e00cc_40aa4d36ad52461995d873d99c1a9085.pdf?index=trueIn PDF document text
    • http://donamofarapim.rf.gd/tylenol_motrin_dosing_chart.pdfIn PDF document text
    • http://tikarere.epizy.com/pemebozigutewu.pdfIn PDF document text
    • http://mikijanux.atwebpages.com/xubajidovezagivib.pdfIn PDF document text
    • http://sabinozugi.epizy.com/funo_dos_anticorpos.pdfIn PDF document text
    • http://gowasikokini.epizy.com/gegodusedidakikonodajuje.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00046667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46667 4936 bytes
SHA-256: 406376c93b5ae1dd1181172ce45dc867a5f8087c3a7dae05f578d08c523af259
font_01_sfnt_off00047737.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47737 13320 bytes
SHA-256: 52dc6acb71e997cf29b4759510b3b2ea0628f9affc40d45305e7df835734b9eb
font_02_sfnt_off0004a1e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A1E0 16060 bytes
SHA-256: d1a84ba8f0e4a827a048d387db8dd5dae3538f1c7e72415b16af587a9947cdc7
font_03_sfnt_off0004b678.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B678 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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