Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe44200ee11a6668…

MALICIOUS

PDF

66.9 KB Created: 2021-04-10 02:17:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: c559e8771f4b39bd115fbf7af8d6a2ed SHA-1: e8b7639ac43dcae3dfc07e81135459311fc97c24 SHA-256: fe44200ee11a6668f339d7d27866bd0c7cc0fe627e4b48cd2caa0f84e34087d3
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, disguised as an occupational therapy brochure. This URL is likely intended to host a malicious payload or lead to a phishing page. The ClamAV detection and ML classifier strongly indicate malicious intent, classifying it as a phishing trojan.

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://baarspo.ru/strik?utm_term=aota+what+is+occupational+therapy+brochure PDF link annotation
    • http://lnstagramcopyrightmanagement.com/does_bowflex_xtreme_2_really_worktln6o.pdfIn PDF document text
    • http://pocki.top/famipozusanukoceb05.pdfIn PDF document text
    • http://alexandreablog.com/vixuzawipapokivinoz3ec4v.pdfIn PDF document text
    • http://storeeuro.info/setting_up_meade_etx_125kib42.pdfIn PDF document text
    • http://fepaporipevari.mypressonline.com/58901897862.pdfIn PDF document text
    • http://xeeewq.xyz/m5a78l-m_lx_v2_specrkb26.pdfIn PDF document text
    • http://sopisafexuj.sportsontheweb.net/kindle_file_format_to.pdfIn PDF document text
    • http://tafasizogir.22web.org/bjt_switching_characteristics.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://492f55f4-3442-4b37-b17e-39d9f2f0ae8a.filesusr.com/ugd/7dfe85_45bc37e78ea84d32b67c8037a9d6887f.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/df17b58b-3c37-4bb4-9334-45a375dafbb7/is_cadmium_yellow_hue_warm_or_cool.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/41562784335.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/eau_guidelines_renal_cell_cancer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/596c3736-e42b-45b0-9d23-6a9e1c82e604/honda_eu6500is_problems.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/runudijamajozal.pdfIn PDF document text
    • http://tukakuze.epizy.com/globalization_meaning_in_simple_words.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/rejection_letter_template_for_vendor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f11e06ea-bb3f-433d-bf76-98f7a44dcb12/mma_unified_rules_judging_criteria.pdfIn PDF document text
    • https://6a421494-2577-4416-904f-e17348f56b63.filesusr.com/ugd/85e76a_902e0888b10042cdb2d77a46de2ac802.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c96b4d2-5ad9-4d59-bc86-3ef24bce7d3b/all_sims_3_expansion_packs_and_stuff_packs_list.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_off0000ca08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA08 5344 bytes
SHA-256: aa37ff9d5e14ee6453e4d9863cec877e4902491685b92926bb30f1ffca3d07bc
font_01_sfnt_off0000dc46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC46 9968 bytes
SHA-256: 18d59cc5fa77764c91e4fe189ae09387c9909cf286aa089f225784f85466728b

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