Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcbb0d0a0407a293…

MALICIOUS

PDF

80.0 KB Created: 2021-03-12 02:09:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: e024c7ebc7093b20b3a66e719593add7 SHA-1: 766dbd2c85667df4b85c2c9be97e2b0da4f5827f SHA-256: bcbb0d0a0407a2938b27dd577562a8049362cc5a19426956ed9523212bde58f5
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, identified by ClamAV as a phishing trojan. The document body, though partially obfuscated, includes text related to 'scrum certification', suggesting a lure to trick users into clicking the malicious link. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://golowaki.ru/strik?utm_term=which+scrum+certification+is+better PDF link annotation
    • https://cdn.sqhk.co/papowepu/iOuxhhd/kujinukukub.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418791/normal_5ffe6fd550367.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466379/normal_60111471ac85f.pdfIn PDF document text
    • http://ital-tess.space/38697301725r8wju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369657/normal_60397b8817683.pdfIn PDF document text
    • https://cdn.sqhk.co/perikowep/jlJFa87/zuwajesipazafenitole.pdfIn PDF document text
    • https://cdn.sqhk.co/rigizisojix/ggQgjig/faxajudejixazogugejurasuv.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzitomizaj/icFggpS/advance_auto_parts_locations_michigan.pdfIn PDF document text
    • http://wobepatonogez.iblogger.org/android_developer_master_detail_flow.pdfIn PDF document text
    • http://youralteragoods.com/introducing_nlp_review4go4x.pdfIn PDF document text
    • https://cdn.sqhk.co/musarawaw/OBifiic/sekarivurebesu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418755/normal_5fce76c656b25.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/zebarufuridorur/chinese_customary_law_in_malaysia.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/xizizeb.pdfIn PDF document text
    • https://s3.amazonaws.com/mefadedosuw/xakozimovigi.pdfIn PDF document text
    • https://s3.amazonaws.com/gozifep/nebeta.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/company_director_stamp_format.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/1922053305.pdfIn PDF document text
    • http://sogigadataga.epizy.com/onimusha_warlords_fluorite_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/apc_be550g_beeping.pdfIn PDF document text
    • http://susosutudufat.rf.gd/what_does_horus_mean.pdfIn PDF document text
    • http://fasevebozumip.rf.gd/4725638872.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/75856271112.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/solitaire_spider_free_windows_7.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_off0000fbfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBFA 5244 bytes
SHA-256: 9897ebacfdaa509501b18a731d70d7d1f36cbf6d8b39e3a10ddc1a546bb0494d
font_01_sfnt_off00010db3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DB3 10928 bytes
SHA-256: f96eb59e1f94c6379ffa12bd26def0c41afa1759bab97b133cc34071aa5e617c

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